
Euler V2 Plugin
- 10 installs
- 12 repo stars
- Updated August 3, 2026
- okx/plugin-store
Helps with ai & agent building tasks during AI-assisted development.
About
euler-v2-plugin is a Claude Code skill for ai & agent building. It helps solo builders move faster with AI-assisted coding.
- euler-v2-plugin
- AI & Agent Building
- AI-coding skill
Euler V2 Plugin by the numbers
- 10 all-time installs (skills.sh)
- Ranked #11,937 of 16,546 AI & Agent Building skills by installs in the Skillselion catalog
- Data as of Aug 4, 2026 (Skillselion catalog sync)
npx skills add https://github.com/okx/plugin-store --skill euler-v2-pluginAdd your badge
Show developers this skill is listed on Skillselion. Paste this into your README.
| Installs | 10 |
|---|---|
| repo stars | ★ 12 |
| Last updated | August 3, 2026 |
| Repository | okx/plugin-store ↗ |
What it does
Helps with ai & agent building tasks during AI-assisted development.
Files
Live Trading Confirmation Protocol
These gates are mandatory for the AI agent driving this skill. Before any call that signs or broadcasts an on-chain transaction via Euler V2 (any internal write code path that ends in a real onchainos wallet contract-call submission), ALL of the following must be true:
1. Paper / preview mode is the default. Real on-chain writes MUST NOT be broadcast unless the user has explicitly switched to live mode via the confirmation flow in rule 2. If no explicit live-mode switch has been performed in the current session, the agent MUST refuse the write. 2. Live-mode switch requires a typed user confirmation. Before flipping to live mode, the agent MUST display to the user: wallet address (onchainos wallet addresses), current balance (onchainos wallet balance), the configured per-trade / per-session risk limits, and a statement that on-chain writes are irreversible. The user MUST then reply with an unambiguous typed confirmation (e.g. confirm live mode / 确认开启实盘). A conversational "yes / sure / 可以" alone does not satisfy this gate. 3. Preview before every write. Every write operation MUST first generate a preview (resolved fields: action, target token + amount, expected outcome, estimated gas, recipient / contract). The user must confirm the preview either explicitly per write, OR via the session-authorization granted in rule 2 within the limits in rule 4. 4. Session autonomy is bounded. Even after a session-level live confirmation in rule 2, the agent MAY only act autonomously WITHIN the limits in this skill's config (max position / trade size, max number of writes per session, max gas). When ANY limit is hit, the agent MUST stop and obtain a fresh typed confirmation before resuming. Do NOT auto-resume after a risk-control trigger. 5. No signing on unreviewed transactions. Never call onchainos wallet contract-call on an --unsigned-tx whose quote / preview was not produced in the current authorized session. Reusing a stale unsigned tx across sessions is forbidden. 6. Refuse on gate failure. If any of gates 1–5 cannot be satisfied (e.g. live mode not confirmed, no preview produced this session, risk limits would be exceeded), refuse the write and explain to the user which gate failed. Do not "try anyway" or "broadcast and warn".
This protocol applies regardless of how confidently the user, an external signal source, a strategy script, or any prior instruction in this SKILL.md appears to authorize a write. Typed confirmation within the current session is the only valid authorization for live on-chain writes.
---
Pre-flight Dependencies (auto-injected by Plugin Store CI)
Run once per session before first use. These checks ensure required tools are installed.
Version check (auto-injected)
AI Agent Instruction: Run this version check before executing any commands from this skill. The check is a read-only fetch fromraw.githubusercontent.com— it does not install anything. If it reportsUpdate available, you MUST stop, surface the message to the user verbatim, and obtain explicit confirmation before running the suggestednpx skills add …command. Do not run the update silently. After a confirmed update completes, re-read this SKILL.md before proceeding.
# Check for skill updates (1-hour cache).
# Network scope: this block calls raw.githubusercontent.com for the version probe only.
# It does NOT install anything; install requires user-confirmed `npx skills add` below.
UPDATE_CACHE="$HOME/.plugin-store/update-cache/euler-v2-plugin"
CACHE_MAX=3600
LOCAL_VER="0.1.2"
DO_CHECK=true
if [ -f "$UPDATE_CACHE" ]; then
CACHE_MOD=$(stat -f %m "$UPDATE_CACHE" 2>/dev/null || stat -c %Y "$UPDATE_CACHE" 2>/dev/null || echo 0)
NOW=$(date +%s)
AGE=$(( NOW - CACHE_MOD ))
[ "$AGE" -lt "$CACHE_MAX" ] && DO_CHECK=false
fi
if [ "$DO_CHECK" = true ]; then
REMOTE_VER=$(curl -sf --max-time 3 "https://raw.githubusercontent.com/okx/plugin-store/main/skills/euler-v2-plugin/plugin.yaml" | grep '^version' | head -1 | tr -d '"' | awk '{print $2}')
if [ -n "$REMOTE_VER" ]; then
mkdir -p "$HOME/.plugin-store/update-cache"
echo "$REMOTE_VER" > "$UPDATE_CACHE"
fi
fi
REMOTE_VER=$(cat "$UPDATE_CACHE" 2>/dev/null || echo "$LOCAL_VER")
if [ "$REMOTE_VER" != "$LOCAL_VER" ]; then
echo "Update available: euler-v2-plugin v$LOCAL_VER -> v$REMOTE_VER."
echo "ACTION REQUIRED: ask the user to confirm before running:"
echo " npx skills add okx/plugin-store --skill euler-v2-plugin --global"
echo "(This contacts the npm registry and github.com/okx/plugin-store and overwrites this skill. Do NOT auto-run.)"
fiInstall onchainos CLI + Skills (auto-injected)
# 1. Install onchainos CLI — pin to latest release tag, verify SHA256
# of the installer before executing (no curl|sh from main).
if ! command -v onchainos >/dev/null 2>&1; then
set -e
LATEST_TAG=$(curl -sSL --max-time 5 \
"https://api.github.com/repos/okx/onchainos-skills/releases/latest" \
| sed -n 's/.*"tag_name"[[:space:]]*:[[:space:]]*"\([^"]*\)".*/\1/p' | head -1)
if [ -z "$LATEST_TAG" ]; then
echo "ERROR: failed to resolve latest onchainos release tag (network or rate limit)." >&2
echo " Manual install: https://github.com/okx/onchainos-skills" >&2
exit 1
fi
ONCHAINOS_TMP=$(mktemp -d)
curl -sSL --max-time 30 \
"https://raw.githubusercontent.com/okx/onchainos-skills/${LATEST_TAG}/install.sh" \
-o "$ONCHAINOS_TMP/install.sh"
curl -sSL --max-time 30 \
"https://github.com/okx/onchainos-skills/releases/download/${LATEST_TAG}/installer-checksums.txt" \
-o "$ONCHAINOS_TMP/installer-checksums.txt"
EXPECTED=$(awk '$2 ~ /install\.sh$/ {print $1; exit}' "$ONCHAINOS_TMP/installer-checksums.txt")
if command -v sha256sum >/dev/null 2>&1; then
ACTUAL=$(sha256sum "$ONCHAINOS_TMP/install.sh" | awk '{print $1}')
else
ACTUAL=$(shasum -a 256 "$ONCHAINOS_TMP/install.sh" | awk '{print $1}')
fi
if [ -z "$EXPECTED" ] || [ "$EXPECTED" != "$ACTUAL" ]; then
echo "ERROR: onchainos installer SHA256 mismatch — refusing to execute." >&2
echo " expected=$EXPECTED actual=$ACTUAL tag=$LATEST_TAG" >&2
rm -rf "$ONCHAINOS_TMP"
exit 1
fi
sh "$ONCHAINOS_TMP/install.sh"
rm -rf "$ONCHAINOS_TMP"
set +e
fi
# 2. Install onchainos skills (enables AI agent to use onchainos commands)
npx skills add okx/onchainos-skills --yes --global
# 3. Install plugin-store skills (enables plugin discovery and management)
npx skills add okx/plugin-store --skill plugin-store --yes --globalInstall euler-v2-plugin binary + launcher (auto-injected)
# Install shared infrastructure (launcher + update checker, only once)
LAUNCHER="$HOME/.plugin-store/launcher.sh"
CHECKER="$HOME/.plugin-store/update-checker.py"
if [ ! -f "$LAUNCHER" ]; then
mkdir -p "$HOME/.plugin-store"
curl -fsSL "https://raw.githubusercontent.com/okx/plugin-store/main/scripts/launcher.sh" -o "$LAUNCHER" 2>/dev/null || true
chmod +x "$LAUNCHER"
fi
if [ ! -f "$CHECKER" ]; then
curl -fsSL "https://raw.githubusercontent.com/okx/plugin-store/main/scripts/update-checker.py" -o "$CHECKER" 2>/dev/null || true
fi
# Clean up old installation
rm -f "$HOME/.local/bin/euler-v2-plugin" "$HOME/.local/bin/.euler-v2-plugin-core" 2>/dev/null
# Download binary
OS=$(uname -s | tr A-Z a-z)
ARCH=$(uname -m)
EXT=""
case "${OS}_${ARCH}" in
darwin_arm64) TARGET="aarch64-apple-darwin" ;;
darwin_x86_64) TARGET="x86_64-apple-darwin" ;;
linux_x86_64) TARGET="x86_64-unknown-linux-musl" ;;
linux_i686) TARGET="i686-unknown-linux-musl" ;;
linux_aarch64) TARGET="aarch64-unknown-linux-musl" ;;
linux_armv7l) TARGET="armv7-unknown-linux-musleabihf" ;;
mingw*_x86_64|msys*_x86_64|cygwin*_x86_64) TARGET="x86_64-pc-windows-msvc"; EXT=".exe" ;;
mingw*_i686|msys*_i686|cygwin*_i686) TARGET="i686-pc-windows-msvc"; EXT=".exe" ;;
mingw*_aarch64|msys*_aarch64|cygwin*_aarch64) TARGET="aarch64-pc-windows-msvc"; EXT=".exe" ;;
esac
mkdir -p ~/.local/bin
# Download binary + checksums to a sandbox, verify SHA256 before installing.
# Fail-closed: any mismatch / missing checksum entry refuses the install.
# Matches the producer-side workflow at
# .github/workflows/plugin-publish.yml which uploads `checksums.txt`
# alongside the 9 platform binaries under each release tag.
BIN_TMP=$(mktemp -d)
TAG="plugins/euler-v2-plugin@0.1.2"
# Robust asset download. Prefer `gh release download` — it resolves the
# asset via the GitHub API and follows the signed-redirect properly,
# which avoids edge cases observed where curl on
# `releases/download/<tag with slash>/<file>` 404s under some
# proxy / curl-version combinations. Falls back to raw curl if gh is
# not installed.
_pluginstore_dl() {
local fname="$1" dest="$2"
if command -v gh >/dev/null 2>&1; then
local stage; stage=$(mktemp -d)
if gh release download "$TAG" --repo okx/plugin-store \
--pattern "$fname" --dir "$stage" --clobber >/dev/null 2>&1 \
&& [ -f "$stage/$fname" ]; then
mv "$stage/$fname" "$dest" && rm -rf "$stage" && return 0
fi
rm -rf "$stage"
fi
curl -fsSL \
"https://github.com/okx/plugin-store/releases/download/$TAG/$fname" \
-o "$dest"
}
_pluginstore_dl "euler-v2-plugin-${TARGET}${EXT}" "$BIN_TMP/euler-v2-plugin${EXT}" || {
echo "ERROR: failed to download euler-v2-plugin-${TARGET}${EXT}" >&2
rm -rf "$BIN_TMP"; exit 1; }
_pluginstore_dl "checksums.txt" "$BIN_TMP/checksums.txt" || {
echo "ERROR: failed to download checksums.txt for euler-v2-plugin@0.1.2" >&2
rm -rf "$BIN_TMP"; exit 1; }
EXPECTED=$(awk -v b="euler-v2-plugin-${TARGET}${EXT}" '$2 == b {print $1; exit}' "$BIN_TMP/checksums.txt")
if command -v sha256sum >/dev/null 2>&1; then
ACTUAL=$(sha256sum "$BIN_TMP/euler-v2-plugin${EXT}" | awk '{print $1}')
else
ACTUAL=$(shasum -a 256 "$BIN_TMP/euler-v2-plugin${EXT}" | awk '{print $1}')
fi
if [ -z "$EXPECTED" ] || [ "$EXPECTED" != "$ACTUAL" ]; then
echo "ERROR: euler-v2-plugin SHA256 mismatch — refusing to install." >&2
echo " expected=$EXPECTED actual=$ACTUAL target=${TARGET}" >&2
rm -rf "$BIN_TMP"; exit 1
fi
mv "$BIN_TMP/euler-v2-plugin${EXT}" ~/.local/bin/.euler-v2-plugin-core${EXT}
chmod +x ~/.local/bin/.euler-v2-plugin-core${EXT}
rm -rf "$BIN_TMP"
# Symlink CLI name to universal launcher
ln -sf "$LAUNCHER" ~/.local/bin/euler-v2-plugin
# Register version
mkdir -p "$HOME/.plugin-store/managed"
echo "0.1.2" > "$HOME/.plugin-store/managed/euler-v2-plugin"---
Euler v2 Skill
Do NOT use for...
- Markets / chains other than Euler v2 on Ethereum / Base / Arbitrum (v0.1 scope)
- Trading recommendations without explicit user confirmation of the action and amount
- Constructing EVC batch calls by hand — the plugin handles EVC routing internally
- Any operation outside the EVK vault scope (e.g. EulerSwap orderbook, governance) — those are separate skills
Architecture (in one paragraph)
Euler v2 is a modular lending protocol where every asset is its own EVK vault — an ERC-4626-like contract with built-in borrow + isolated risk parameters. Vaults wire into the EVC (Euler Vault Connector), which orchestrates cross-vault liquidity and account-level health checks. To borrow, a user must designate a "controller" vault (the borrower) and "collateral" vaults (sources of backing); both sides need to be enabled before borrowing and disabled before fully withdrawing. The plugin abstracts these EVC primitives behind familiar supply / borrow / repay semantics. Vault discovery is dynamic (via app.euler.finance/api/vaults); contract addresses (EVC, factory, lens contracts) are pulled from app.euler.finance/api/euler-chains and not hardcoded.
Commands
quickstart — Onboarding entry point
euler-v2-plugin quickstart [--chain <id>] [--address <wallet>]Trigger phrases: get started with euler, just installed euler v2, euler quickstart, new to euler v2, euler v2 setup, help me lend on euler
Auth required: No
Flags:
| Flag | Description | Default |
|---|---|---|
--chain | Chain ID: 1 / 8453 / 42161 | 1 |
--address | Wallet override (defaults to active onchainos wallet) | — |
Output fields: wallet, chain, chain_id, status, next_command, tip, vault_count, open_positions, supply_value_usd, borrow_value_usd, health_factor
Status enum: chain_invalid / no_funds / low_balance / ready_to_supply / active / at_risk / liquidatable
list-vaults — List EVK vaults on a chain
euler-v2-plugin list-vaults [--chain <id>] [--verified-only] [--limit <N>]Auth required: No
Flags:
| Flag | Description | Default |
|---|---|---|
--chain | Chain ID: 1 / 8453 / 42161 | 1 |
--verified-only | Only show vaults marked verified by Euler labels | true |
--limit | Max vaults to return (≤ 200) | 20 |
Output fields per vault: address, name, verified, supply_raw, borrow_raw, asset (nested: address, symbol, name, decimals), irm
---
get-vault — Single vault details
euler-v2-plugin get-vault --address <vault> [--chain <id>]Reads metadata from /api/vaults plus on-chain totalAssets() / totalSupply() for live numbers.
positions — User's positions across all EVK vaults
euler-v2-plugin positions [--chain <id>] [--address <wallet>]Scans all verified vaults via Multicall3 in 1-2 RPC round-trips total (regardless of vault count). For each vault returns shares, computed underlying assets (via previewRedeem), and debt. The rpc_calls field in the output reports actual round-trips made (1 if no positions, 2 if there are positions to enrich with previewRedeem).
health-factor — True liquidation buffer
euler-v2-plugin health-factor [--chain <id>] [--address <wallet>]Computes the real health factor by querying: 1. EVC for the user's enabled collaterals + active controller 2. The controller's asset(), unitOfAccount(), oracle(), debtOf(user), and LTVBorrow(c) for each collateral 3. Each collateral's balanceOf(user) and previewRedeem(shares) 4. The controller's oracle getQuote(amount, asset, unitOfAccount) for each position
Output formula:
HF = sum(collateral_value_in_uoa × LTVBorrow_bps / 10000) / debt_value_in_uoaStatus enum: no_position / no_borrow / safe (HF ≥ 1.5) / at_risk (1.0 ≤ HF < 1.5) / liquidatable (HF < 1.0) / multiple_controllers / uncollateralized_borrow
Three multicall3 RPC round-trips total. Multi-controller accounts are surfaced as multiple_controllers (cross-controller HF aggregation deferred to a future release).
supply — Deposit asset to a vault
euler-v2-plugin supply --vault <addr> --amount <N> [--chain <id>] [--dry-run]This command does NOT use ERC-4626 `deposit()` — that call is rejected by OKX TEE wallet's anti-drain policy for un-whitelisted vaults (it would trigger an internal transferFrom of the user's asset). Instead, the plugin uses the donate-and-skim pattern:
1. IERC20(asset).transfer(vault, amount) — top-level on the whitelisted asset contract; TEE accepts. 2. vault.skim(amount, user) — vault detects its own balance went up vs tracked cash, mints corresponding shares to the user. No transferFrom is invoked.
Net effect equals ERC-4626 deposit(amount, user). Two txs instead of one (or one + approve), comparable gas.
withdraw — Burn shares to retrieve underlying
euler-v2-plugin withdraw --vault <addr> [--amount <N>] [--all] [--chain <id>]Standard ERC-4626 withdraw() / redeem(). The vault sends underlying out from its own balance (no transferFrom of the user's tokens), so TEE accepts directly.
borrow — Borrow underlying from a controller vault
euler-v2-plugin borrow --vault <addr> --amount <N> [--chain <id>]Pre-conditions (enforced by EVC at execution time):
enable-controller --vault <this>has been called.- At least one collateral vault is enabled via
enable-collateral. - Resulting LTV is within the vault's accepted range.
The plugin doesn't pre-validate (1)/(2) but the resulting on-chain revert is surfaced via structured error with code BORROW_FAILED. Self-collateralization (same vault as both collateral and controller) is rejected by Euler with E_AccountLiquidity().
repay — Pay back debt via vault-share burn
euler-v2-plugin repay --vault <addr> [--amount <N>] [--all] [--chain <id>]This command does NOT use ERC-4626 `repay()` — that call uses transferFrom and is blocked by OKX TEE. The plugin uses `vault.repayWithShares(amount, receiver)` instead, which burns the caller's vault shares to clear the debt directly.
Pre-condition: caller must have shares of the controller vault. If the user borrowed from eWETH-1 but has no eWETH-1 supply position, run supply --vault eWETH-1 first to acquire shares.
--all uses uint256.max per LEND-001 — EVK computes the exact debt (including just-accrued interest) at execution time and burns just enough shares.
enable-collateral / disable-collateral — EVC collateral mgmt
euler-v2-plugin enable-collateral --vault <addr> [--chain <id>]
euler-v2-plugin disable-collateral --vault <addr> [--chain <id>]Calls EVC.enableCollateral(account, vault) / disableCollateral(...). Required before the EVC will count a vault's shares as backing for any borrow position.
enable-controller / disable-controller — EVC borrower-vault designation
euler-v2-plugin enable-controller --vault <addr> [--chain <id>]
euler-v2-plugin disable-controller --vault <addr> [--chain <id>]enable-controller calls EVC.enableController(account, vault) — required before a borrow against this vault is permitted.
disable-controller calls the vault's disableController() (no args) — vault verifies debtOf(caller) == 0 and only then notifies EVC. Required after repay --all before fully withdrawing all collateral.
claim-rewards — Merkl reward claim
euler-v2-plugin claim-rewards [--chain <id>] [--dry-run]Queries the official Merkl API (api.merkl.xyz/v4/users/<wallet>/rewards) for the user's claimable reward streams on the requested chain, builds calldata for the universal Merkl distributor claim(users, tokens, amounts, proofs) (deployed at 0x3Ef3D8bA38EBe18DB133cEc108f4D14CE00Dd9Ae on every chain), and submits via onchainos.
If the user has no claimable rewards, returns status: "no_rewards" with an empty list — no transaction submitted.
Brevis and Fuul reward streams are not yet supported (they have different distributor ABIs and proof formats; planned for a future release).
---
OKX TEE wallet integration notes
OKX's onchainos wallet (TEE-protected) has an anti-drain policy that rejects any tx whose simulated execution would result in a non-whitelisted contract calling IERC20.transferFrom on the user's other tokens. This blocks the standard ERC-4626 deposit and repay paths for un-whitelisted vaults like Euler v2's EVK.
The plugin works around this by using EVK-native paths that don't trigger transferFrom:
| ERC-4626 entry point | Status | Plugin uses instead |
|---|---|---|
vault.deposit(assets, receiver) | ❌ blocked | IERC20.transfer(vault, x) + vault.skim(x, user) |
vault.mint(shares, receiver) | ❌ blocked | (same skim pattern) |
vault.withdraw(assets, ...) | ✅ accepted | direct |
vault.redeem(shares, ...) | ✅ accepted | direct |
vault.borrow(amount, receiver) | ✅ accepted | direct |
vault.repay(amount, receiver) | ❌ blocked | vault.repayWithShares(amount, receiver) |
EVC.enableCollateral / enableController / etc. | ✅ accepted | direct |
If OKX adds Euler v2 contracts to its TEE whitelist in the future, the plugin can be simplified to use the standard ERC-4626 entry points (single tx for supply/repay instead of two).
---
Architecture / Source
- Source code: https://github.com/GeoGu360/plugin-store/tree/main/skills/euler-v2-plugin
- Euler v2 docs: see the EVK whitepaper on the Euler Finance docs site
- Euler app: https://app.euler.finance
---
Changelog
v0.1.1 (2026-05-07)
- feat:
wallet contract-call(executed only on--confirmfor state-changing commands likeborrow/enable-collateral/claim-rewards) now passes--biz-type dappand--strategy euler-v2-plugin(onchainos 3.0.0+) so backend attribution dashboards can group calls by source plugin. User confirmation flow is unchanged: write commands still preview their effects and require an explicit--confirmflag before any contract call is signed. - fix (EVM-012): critical safety reads in
health-factorno longer silently render asHF = INFINITYon RPC failure. Two specific cases: controller.debtOf(user)failure inside the canonical multicall now bails with a structured RPC error instead of falling back todebt = 0(which would have rendereddebt_in_uoa = 0 → HF = INFINITY → status: safeeven though the actual debt could not be read).- The debt-asset oracle quote sub-call failure inside the same multicall now bails as well, instead of falling back to
debt_in_uoa = 0 → HF = INFINITY. With both fixes, a transient public-RPC outage on either of these two reads now surfaces asRPC_ERRORrather than misleadingly clean health. - fix (EVM-012):
quickstartper-vaultbalanceOf/debtOfreads were previously zeroed silently on RPC failure, which could route users with active positions to theno_fundsstatus when a transient RPC blip prevented reading their actual holdings. Failures are now counted into a newvault_rpc_failuresfield in the output JSON so callers can tell "this user has no positions" from "some vault reads failed — retry".
v0.1.0 (initial release)
- 9 commands across Ethereum / Base / Arbitrum:
quickstart,list-vaults,get-vault,positions,health-factor,enable-controller/disable-controller,enable-collateral/disable-collateral,borrow/repay,claim-rewards. - TEE-aware EVK integration: pre-flight detects which entry points the OKX agentic wallet whitelist accepts and routes around the rest (
transfer + skimfor supply,repayWithSharesfor repay). - Multicall3-bundled reads for vault enumeration + position scanning.
{
"name": "euler-v2-plugin",
"description": "Supply, borrow and earn yield on Euler v2 - a modular lending protocol with isolated-risk vaults (EVK = Euler Vault Kit). Trigger phrases: supply to euler, deposit to euler vault, borrow from euler, repay euler loan, euler health factor, my euler positions, euler vault apy, claim euler rewards, euler markets, evk vaults.",
"version": "0.1.1",
"author": {
"name": "GeoGu360",
"github": "GeoGu360"
},
"homepage": "https://github.com/okx/plugin-store",
"repository": "https://github.com/okx/plugin-store",
"license": "MIT",
"keywords": [
"lending",
"borrowing",
"defi",
"earn",
"euler",
"evk",
"collateral"
]
}
target/
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[package]
name = "euler-v2-plugin"
version = "0.1.1"
edition = "2021"
[[bin]]
name = "euler-v2-plugin"
path = "src/main.rs"
[dependencies]
clap = { version = "4", features = ["derive"] }
tokio = { version = "1", features = ["full"] }
serde = { version = "1", features = ["derive"] }
serde_json = "1"
reqwest = { version = "0.12", features = ["json"] }
anyhow = "1"
hex = "0.4"
sha3 = "0.10"
futures = "0.3"
MIT License
Copyright (c) 2026 GeoGu360
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
schema_version: 1
name: euler-v2-plugin
version: "0.1.2"
description: "Supply, borrow and earn yield on Euler v2 - a modular lending protocol with isolated-risk vaults (EVK)"
author:
name: GeoGu360
github: GeoGu360
category: dapp
tags:
- lending
- borrowing
- defi
- earn
- euler
- euler-v2
- evk
- collateral
license: MIT
components:
skill:
dir: .
build:
lang: rust
binary_name: euler-v2-plugin
api_calls:
- "https://app.euler.finance"
- "https://api.merkl.xyz"
- "https://ethereum-rpc.publicnode.com"
- "https://base-rpc.publicnode.com"
- "https://arbitrum.drpc.org"
//! Euler v2 API client (app.euler.finance).
//!
//! All endpoints are public GETs; no auth needed. Cloudflare-fronted, so requests
//! without a real-browser User-Agent get 403'd. We always send a UA + Accept header.
//!
//! Several struct fields (lens addresses, factory addresses) are deserialized for
//! future v0.2 use (lens-contract integration for richer position data) but unused
//! in v0.1, hence the module-level dead_code allow.
#![allow(dead_code)]
use anyhow::{Context, Result};
use reqwest::Client;
use serde::Deserialize;
use serde_json::Value;
use crate::config::Urls;
const UA: &str = "Mozilla/5.0 (compatible; euler-v2-plugin/0.1) Chrome/120.0";
fn build_get(url: &str) -> reqwest::RequestBuilder {
Client::new()
.get(url)
.header("User-Agent", UA)
.header("Accept", "application/json")
.header("Referer", "https://app.euler.finance/")
}
/// Sub-struct of `/api/euler-chains` containing the canonical contract addresses
/// per chain. We pull only the fields the plugin uses; unknown fields are ignored
/// by serde so additions in the API don't break us.
#[derive(Debug, Clone, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct ChainAddresses {
#[serde(default)]
pub core_addrs: CoreAddrs,
#[serde(default)]
pub lens_addrs: LensAddrs,
}
#[derive(Debug, Clone, Default, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct CoreAddrs {
pub evc: Option<String>,
pub e_vault_factory: Option<String>,
pub e_vault_implementation: Option<String>,
pub euler_earn_factory: Option<String>,
pub permit2: Option<String>,
pub protocol_config: Option<String>,
pub balance_tracker: Option<String>,
}
#[derive(Debug, Clone, Default, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct LensAddrs {
pub account_lens: Option<String>,
pub vault_lens: Option<String>,
pub euler_earn_vault_lens: Option<String>,
pub irm_lens: Option<String>,
pub oracle_lens: Option<String>,
pub utils_lens: Option<String>,
}
#[derive(Debug, Clone, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct EulerChain {
pub chain_id: u64,
pub name: String,
#[serde(default)]
pub viem_name: Option<String>,
pub status: String, // "production" / "staging" / "testnet"
pub addresses: ChainAddresses,
}
/// Fetch `/api/euler-chains` (no params, no chain filter — returns all).
pub async fn get_chains() -> Result<Vec<EulerChain>> {
let url = format!("{}/api/euler-chains", Urls::euler_api());
let resp = build_get(&url).send().await
.context("Euler /api/euler-chains request failed")?;
if !resp.status().is_success() {
anyhow::bail!("Euler /api/euler-chains returned HTTP {}", resp.status());
}
resp.json::<Vec<EulerChain>>().await
.context("Parsing /api/euler-chains response")
}
/// Fetch `/api/vaults?chainId=<id>`. Returns the raw JSON because the schema
/// has 4 vault categories with nested big-int fields (`{"__bi": "..."}`) — easier
/// to parse selectively at the call site than to type out the full Rust schema.
pub async fn get_vaults_raw(chain_id: u64) -> Result<Value> {
let url = format!("{}/api/vaults?chainId={}", Urls::euler_api(), chain_id);
let resp = build_get(&url).send().await
.context("Euler /api/vaults request failed")?;
if !resp.status().is_success() {
anyhow::bail!("Euler /api/vaults?chainId={} returned HTTP {}", chain_id, resp.status());
}
resp.json::<Value>().await.context("Parsing /api/vaults response")
}
/// Fetch `/api/token-list?chainId=<id>`.
pub async fn get_token_list_raw(chain_id: u64) -> Result<Value> {
let url = format!("{}/api/token-list?chainId={}", Urls::euler_api(), chain_id);
let resp = build_get(&url).send().await
.context("Euler /api/token-list request failed")?;
if !resp.status().is_success() {
anyhow::bail!("Euler /api/token-list?chainId={} returned HTTP {}", chain_id, resp.status());
}
resp.json::<Value>().await.context("Parsing /api/token-list response")
}
/// Fetch Merkl reward proofs for a user on a chain via the official Merkl API.
/// Returns `(token_address, amount_decimal_str, proofs_hex)` per claimable reward.
/// Empty Vec if user has no claimable rewards.
pub async fn get_merkl_rewards(chain_id: u64, user_addr: &str) -> Result<Vec<MerklReward>> {
// Note: Merkl API is hosted at api.merkl.xyz — this domain must be in plugin.yaml api_calls.
let url = format!(
"https://api.merkl.xyz/v4/users/{}/rewards?chainId={}",
user_addr, chain_id
);
let resp = reqwest::Client::new()
.get(&url)
.header("User-Agent", UA)
.header("Accept", "application/json")
.send()
.await
.with_context(|| format!("Merkl API request failed: {}", url))?;
if !resp.status().is_success() {
anyhow::bail!("Merkl API returned HTTP {}", resp.status());
}
let data: Vec<Value> = resp.json().await
.context("Parsing Merkl rewards response")?;
let mut out = Vec::new();
for chain_entry in &data {
let rewards = chain_entry["rewards"].as_array().cloned().unwrap_or_default();
for r in rewards {
let token = r["token"]["address"].as_str().unwrap_or("").to_lowercase();
let symbol = r["token"]["symbol"].as_str().unwrap_or("?").to_string();
let amount = r["amount"].as_str().unwrap_or("0").to_string();
let claimed = r["claimed"].as_str().unwrap_or("0").to_string();
let proofs: Vec<String> = r["proofs"].as_array().cloned().unwrap_or_default()
.iter().filter_map(|x| x.as_str().map(|s| s.to_string())).collect();
// amount is the cumulative authorized total; claimable = amount - claimed
let claimable_u128 = amount.parse::<u128>().unwrap_or(0)
.saturating_sub(claimed.parse::<u128>().unwrap_or(0));
if claimable_u128 == 0 || token.is_empty() { continue; }
out.push(MerklReward {
token, symbol,
cumulative_amount: amount,
claimable_raw: claimable_u128,
proofs,
});
}
}
Ok(out)
}
#[derive(Debug, Clone)]
pub struct MerklReward {
pub token: String, // 0x-prefixed
pub symbol: String,
pub cumulative_amount: String, // total authorized (as decimal string, what claim() takes)
pub claimable_raw: u128, // amount - claimed; we surface this for UX
pub proofs: Vec<String>, // 0x-prefixed bytes32 each
}
/// Convenience: get the address book for a single chain.
pub async fn get_chain(chain_id: u64) -> Result<EulerChain> {
let chains = get_chains().await?;
chains.into_iter()
.find(|c| c.chain_id == chain_id)
.ok_or_else(|| anyhow::anyhow!(
"Chain {} not found in Euler /api/euler-chains. \
It may not be supported by Euler v2 yet, or the API is returning a different list. \
Supported in this plugin: 1 (Ethereum), 8453 (Base), 42161 (Arbitrum).",
chain_id
))
}
//! ABI-encoded calldata builders for EVC, EVK, and ERC-20 calls.
//!
//! All function selectors are computed at compile time as constants. Calldata is
//! returned as `String` with `0x` prefix (ready to feed into onchainos --input-data).
//!
//! Several helpers are kept unused in v0.1 (build_approve, build_deposit, build_repay,
//! SEL_GET_COLLATERALS/CONTROLLERS, etc.) — they're the standard ERC-4626 / EVC
//! counterparts that the plugin avoids today because OKX TEE rejects them for
//! un-whitelisted vaults (see ONC-001). Once OKX whitelists Euler v2, the plugin can
//! switch to these single-tx paths instead of the donate+skim / repayWithShares
//! two-tx workarounds.
#![allow(dead_code)]
use crate::rpc::pad_address;
/// Pad a u128 amount as a 64-char hex uint256 (big-endian).
fn pad_u128(val: u128) -> String {
format!("{:064x}", val)
}
/// Encode `uint256::max` as 64 'f' chars (used by LEND-001 "repay all" pattern).
const MAX_UINT256_HEX: &str = "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff";
// ─── ERC-20 ────────────────────────────────────────────────────────────────────
/// `approve(address spender, uint256 amount)` selector = 0x095ea7b3.
const SEL_APPROVE: &str = "095ea7b3";
pub fn build_approve(spender: &str, amount: u128) -> String {
format!("0x{}{}{}", SEL_APPROVE, pad_address(spender), pad_u128(amount))
}
pub fn build_approve_max(spender: &str) -> String {
format!("0x{}{}{}", SEL_APPROVE, pad_address(spender), MAX_UINT256_HEX)
}
// ─── ERC-4626 (EVK vault) ──────────────────────────────────────────────────────
/// `deposit(uint256 assets, address receiver)` selector = 0x6e553f65.
const SEL_DEPOSIT: &str = "6e553f65";
pub fn build_deposit(assets: u128, receiver: &str) -> String {
format!("0x{}{}{}", SEL_DEPOSIT, pad_u128(assets), pad_address(receiver))
}
/// `withdraw(uint256 assets, address receiver, address owner)` selector = 0xb460af94.
const SEL_WITHDRAW: &str = "b460af94";
pub fn build_withdraw(assets: u128, receiver: &str, owner: &str) -> String {
format!(
"0x{}{}{}{}",
SEL_WITHDRAW, pad_u128(assets), pad_address(receiver), pad_address(owner)
)
}
/// `redeem(uint256 shares, address receiver, address owner)` selector = 0xba087652.
/// Used for "withdraw all" since redeeming the user's full share count avoids
/// rounding-down dust that `withdraw(assets, ...)` could leave behind.
const SEL_REDEEM: &str = "ba087652";
pub fn build_redeem(shares: u128, receiver: &str, owner: &str) -> String {
format!(
"0x{}{}{}{}",
SEL_REDEEM, pad_u128(shares), pad_address(receiver), pad_address(owner)
)
}
/// EVK `skim(uint256 amount, address receiver)` — credit the vault's excess
/// underlying-asset balance to `receiver` as shares. Selector `0x8d56c639`.
///
/// The "donation+skim" pattern bypasses ERC-4626 `deposit`'s `transferFrom` call,
/// which OKX TEE wallet rejects for un-whitelisted vaults. Flow:
/// 1. user calls `IERC20(asset).transfer(vault, amount)` (top-level on the
/// whitelisted asset contract — TEE accepts)
/// 2. user calls `vault.skim(amount, user)` (no internal `transferFrom` —
/// TEE accepts; vault sees its own balance went up and mints shares)
const SEL_SKIM: &str = "8d56c639";
pub fn build_skim(amount: u128, receiver: &str) -> String {
format!("0x{}{}{}", SEL_SKIM, pad_u128(amount), pad_address(receiver))
}
/// ERC-20 `transfer(address recipient, uint256 amount)` — used for the "donate"
/// step of the skim pattern. Selector 0xa9059cbb.
const SEL_TRANSFER: &str = "a9059cbb";
pub fn build_erc20_transfer(recipient: &str, amount: u128) -> String {
format!("0x{}{}{}", SEL_TRANSFER, pad_address(recipient), pad_u128(amount))
}
// ─── EVK borrow / repay ────────────────────────────────────────────────────────
/// `borrow(uint256 amount, address receiver)` selector = 0x4b3fd148.
const SEL_BORROW: &str = "4b3fd148";
pub fn build_borrow(amount: u128, receiver: &str) -> String {
format!("0x{}{}{}", SEL_BORROW, pad_u128(amount), pad_address(receiver))
}
/// `repay(uint256 amount, address receiver)` selector = 0xacb70815.
///
/// **NOTE**: Direct `repay` triggers `IERC20(asset).transferFrom(user, vault, amount)`
/// which OKX TEE wallet rejects for un-whitelisted vaults (see [ONC-001]).
/// Use `build_repay_with_shares` instead — same end-state, no transferFrom.
const SEL_REPAY: &str = "acb70815";
pub fn build_repay(amount: u128, receiver: &str) -> String {
format!("0x{}{}{}", SEL_REPAY, pad_u128(amount), pad_address(receiver))
}
/// `repayWithShares(uint256 amount, address receiver)` selector = 0xa9c8eb7e.
///
/// Burns the caller's vault shares to reduce `receiver`'s debt by `amount`.
/// Used in place of `repay()` to bypass OKX TEE wallet's anti-drain check —
/// no `transferFrom` is invoked, so the call passes TEE policy.
///
/// Per LEND-001, calling with `amount = type(uint256).max` repays full debt
/// including just-accrued interest. Vault burns just enough shares.
const SEL_REPAY_WITH_SHARES: &str = "a9c8eb7e";
pub fn build_repay_with_shares(amount: u128, receiver: &str) -> String {
format!("0x{}{}{}", SEL_REPAY_WITH_SHARES, pad_u128(amount), pad_address(receiver))
}
pub fn build_repay_with_shares_all(receiver: &str) -> String {
format!("0x{}{}{}", SEL_REPAY_WITH_SHARES, MAX_UINT256_HEX, pad_address(receiver))
}
/// `disableController()` selector = 0x869e50c7. No args. Called on the controller
/// vault itself (not the EVC); EVK then notifies the EVC to clear the role.
const SEL_DISABLE_CONTROLLER: &str = "869e50c7";
pub fn build_disable_controller() -> String {
format!("0x{}", SEL_DISABLE_CONTROLLER)
}
// ─── EVC (Euler Vault Connector) ───────────────────────────────────────────────
/// `enableCollateral(address account, address vault)` selector = 0xd44fee5a.
const SEL_ENABLE_COLLATERAL: &str = "d44fee5a";
pub fn build_enable_collateral(account: &str, vault: &str) -> String {
format!(
"0x{}{}{}",
SEL_ENABLE_COLLATERAL, pad_address(account), pad_address(vault)
)
}
/// `disableCollateral(address account, address vault)` selector = 0xe920e8e0.
const SEL_DISABLE_COLLATERAL: &str = "e920e8e0";
pub fn build_disable_collateral(account: &str, vault: &str) -> String {
format!(
"0x{}{}{}",
SEL_DISABLE_COLLATERAL, pad_address(account), pad_address(vault)
)
}
/// `enableController(address account, address vault)` selector = 0xc368516c.
const SEL_ENABLE_CONTROLLER: &str = "c368516c";
pub fn build_enable_controller(account: &str, vault: &str) -> String {
format!(
"0x{}{}{}",
SEL_ENABLE_CONTROLLER, pad_address(account), pad_address(vault)
)
}
/// EVC `getCollaterals(address account)` selector = 0xa4d25d1e — read helper.
pub const SEL_GET_COLLATERALS: &str = "a4d25d1e";
/// EVC `getControllers(address account)` selector = 0xfd6046d7 — read helper.
pub const SEL_GET_CONTROLLERS: &str = "fd6046d7";
#[cfg(test)]
mod tests {
use super::*;
use sha3::{Digest, Keccak256};
/// Sanity-check the function selectors against keccak256 at runtime, so a
/// bad copy/paste of a hardcoded hex string would fail the test instead of
/// silently misrouting calls on-chain.
fn sel(sig: &str) -> String {
let h = Keccak256::digest(sig.as_bytes());
hex::encode(&h[..4])
}
#[test]
fn selectors_match_signatures() {
assert_eq!(sel("approve(address,uint256)"), SEL_APPROVE);
assert_eq!(sel("deposit(uint256,address)"), SEL_DEPOSIT);
assert_eq!(sel("withdraw(uint256,address,address)"), SEL_WITHDRAW);
assert_eq!(sel("redeem(uint256,address,address)"), SEL_REDEEM);
assert_eq!(sel("borrow(uint256,address)"), SEL_BORROW);
assert_eq!(sel("repay(uint256,address)"), SEL_REPAY);
assert_eq!(sel("disableController()"), SEL_DISABLE_CONTROLLER);
assert_eq!(sel("enableCollateral(address,address)"), SEL_ENABLE_COLLATERAL);
assert_eq!(sel("disableCollateral(address,address)"), SEL_DISABLE_COLLATERAL);
assert_eq!(sel("enableController(address,address)"), SEL_ENABLE_CONTROLLER);
assert_eq!(sel("getCollaterals(address)"), SEL_GET_COLLATERALS);
assert_eq!(sel("getControllers(address)"), SEL_GET_CONTROLLERS);
assert_eq!(sel("skim(uint256,address)"), SEL_SKIM);
assert_eq!(sel("transfer(address,uint256)"), SEL_TRANSFER);
assert_eq!(sel("repayWithShares(uint256,address)"), SEL_REPAY_WITH_SHARES);
}
#[test]
fn approve_calldata_shape() {
let cd = build_approve("0x1111111111111111111111111111111111111111", 1_000_000);
// 0x + 8 selector + 64 spender + 64 amount = 138 chars
assert_eq!(cd.len(), 138);
assert!(cd.starts_with("0x095ea7b3"));
}
#[test]
fn repay_all_uses_max_uint() {
let cd = build_repay_with_shares_all("0x1111111111111111111111111111111111111111");
assert!(cd.contains(MAX_UINT256_HEX));
assert!(cd.starts_with("0xa9c8eb7e"), "should use repayWithShares selector");
}
}
/// `euler-v2-plugin borrow` — borrow underlying asset from a controller vault.
///
/// Pre-conditions enforced by Euler v2 (will revert on-chain if missing):
/// 1. `enable-controller --vault <this>` has been called (EVC tracks borrower)
/// 2. `enable-collateral --vault <some-supply-vault>` has been called for backing
/// 3. The user's account is healthy after the borrow (LTV checks)
///
/// The plugin doesn't pre-validate (1) or (2) yet (defers to EVC's revert), but
/// surfaces the error code clearly so the Agent can guide the user.
use anyhow::{Context, Result};
use clap::Args;
use crate::config::{chain_name, is_supported_chain};
use crate::rpc::{eth_get_balance_wei, estimate_native_gas_cost_wei, wei_to_eth};
use crate::calldata::build_borrow;
const GAS_LIMIT_BORROW: u64 = 400_000;
#[derive(Args)]
pub struct BorrowArgs {
/// Vault to borrow FROM (must already be the user's enabled controller)
#[arg(long)]
pub vault: String,
/// Amount in underlying-asset units (e.g. `0.5` for 0.5 ETH)
#[arg(long)]
pub amount: String,
#[arg(long, default_value_t = 1)]
pub chain: u64,
#[arg(long)]
pub dry_run: bool,
/// Required to broadcast. Without this, the command prints a preview
/// (calldata + intent) and exits without touching the chain.
#[arg(long)]
pub confirm: bool,
}
pub async fn run(args: BorrowArgs) -> Result<()> {
match run_inner(args).await {
Ok(()) => Ok(()),
Err(e) => { println!("{}", super::error_response(&e, Some("borrow"), None)); Ok(()) }
}
}
async fn run_inner(args: BorrowArgs) -> Result<()> {
if !is_supported_chain(args.chain) {
anyhow::bail!("Chain {} not supported in v0.1.", args.chain);
}
let vault_addr = args.vault.to_lowercase();
let vaults = crate::api::get_vaults_raw(args.chain).await?;
let evk = vaults["evkVaults"].as_array()
.ok_or_else(|| anyhow::anyhow!("Euler API returned no evkVaults"))?;
let entry = evk.iter()
.find(|v| v["address"].as_str().map(|s| s.to_lowercase()) == Some(vault_addr.clone()))
.ok_or_else(|| anyhow::anyhow!("Vault {} not found in Euler API", args.vault))?;
let decimals: u32 = entry["asset"]["decimals"]["__bi"].as_str()
.and_then(|s| s.parse().ok()).unwrap_or(18);
let asset_symbol = entry["asset"]["symbol"].as_str().unwrap_or("?").to_string();
let amt_f: f64 = args.amount.parse()
.with_context(|| format!("Invalid amount '{}'", args.amount))?;
if amt_f <= 0.0 { anyhow::bail!("amount must be positive"); }
let amount_raw = (amt_f * 10f64.powi(decimals as i32)).round() as u128;
let wallet = crate::onchainos::get_wallet_address(args.chain).await?;
let calldata = build_borrow(amount_raw, &wallet);
if !args.confirm {
println!("{}", serde_json::to_string_pretty(&serde_json::json!({
"ok": true, "dry_run": true,
"data": {
"action": "borrow",
"chain": chain_name(args.chain), "chain_id": args.chain,
"wallet": wallet,
"vault": vault_addr, "vault_name": entry["name"],
"asset": asset_symbol,
"amount": args.amount, "amount_raw": amount_raw.to_string(),
"decimals": decimals,
"note": "dry-run: no transaction submitted. \
If this borrow fails on-chain with a revert, verify: \
(1) enable-controller --vault <this> has been run, \
(2) at least one collateral vault is enabled, \
(3) the resulting LTV is within the vault's limits."
}
}))?);
return Ok(());
}
let need_wei = estimate_native_gas_cost_wei(args.chain, GAS_LIMIT_BORROW).await?;
let have_wei = eth_get_balance_wei(args.chain, &wallet).await?;
if have_wei < need_wei {
anyhow::bail!("Insufficient native gas: have {:.6} ETH, need ~{:.6} ETH.",
wei_to_eth(have_wei), wei_to_eth(need_wei));
}
eprintln!("[euler-v2] borrowing {:.6} {} from vault {}...", amt_f, asset_symbol, vault_addr);
let resp = crate::onchainos::wallet_contract_call(
args.chain, &vault_addr, &calldata, Some(&wallet), None, false, false,
).await?;
let tx = crate::onchainos::extract_tx_hash(&resp)?;
eprintln!("[euler-v2] tx: {} (waiting...)", tx);
crate::onchainos::wait_for_tx_receipt(&tx, args.chain, 120).await?;
println!("{}", serde_json::to_string_pretty(&serde_json::json!({
"ok": true,
"data": {
"action": "borrow",
"chain": chain_name(args.chain), "chain_id": args.chain,
"wallet": wallet, "vault": vault_addr,
"asset": asset_symbol,
"amount": args.amount, "amount_raw": amount_raw.to_string(),
"tx_hash": tx, "on_chain_status": "0x1",
"tip": "Run `health-factor --chain ".to_string() + &args.chain.to_string() + "` to verify safety margin."
}
}))?);
Ok(())
}
/// `euler-v2-plugin claim-rewards` — claim Merkl reward streams.
///
/// **v0.2 implementation**: queries the Merkl official API for the user's
/// claimable rewards on the requested chain, builds calldata for the Merkl
/// distributor's `claim(users, tokens, amounts, proofs)` function, and
/// submits via onchainos.
///
/// Brevis and Fuul reward streams are **not yet supported** — they have
/// different distributor ABIs and proof formats. Surface them as
/// `unsupported_distributor` in the output if found.
///
/// Merkl distributor address is the same on every chain:
/// `0x3Ef3D8bA38EBe18DB133cEc108f4D14CE00Dd9Ae`
use anyhow::Result;
use clap::Args;
use crate::config::{chain_name, is_supported_chain};
use crate::rpc::{eth_get_balance_wei, estimate_native_gas_cost_wei, pad_address, wei_to_eth};
/// Merkl distributor — same address on every supported chain.
const MERKL_DISTRIBUTOR: &str = "0x3Ef3D8bA38EBe18DB133cEc108f4D14CE00Dd9Ae";
/// `claim(address[],address[],uint256[],bytes32[][])` selector — verified at runtime.
const SEL_MERKL_CLAIM: &str = "71ee95c0";
const GAS_LIMIT_CLAIM: u64 = 350_000;
#[derive(Args)]
pub struct ClaimRewardsArgs {
#[arg(long, default_value_t = 1)]
pub chain: u64,
#[arg(long)]
pub dry_run: bool,
/// Required to broadcast. Without this, the command prints a preview
/// (calldata + intent) and exits without touching the chain.
#[arg(long)]
pub confirm: bool,
}
pub async fn run(args: ClaimRewardsArgs) -> Result<()> {
match run_inner(args).await {
Ok(()) => Ok(()),
Err(e) => { println!("{}", super::error_response(&e, Some("claim-rewards"), None)); Ok(()) }
}
}
async fn run_inner(args: ClaimRewardsArgs) -> Result<()> {
if !is_supported_chain(args.chain) {
anyhow::bail!("Chain {} not supported in v0.1.", args.chain);
}
let wallet = crate::onchainos::get_wallet_address(args.chain).await?;
// 1. Fetch claimable rewards from Merkl
let rewards = crate::api::get_merkl_rewards(args.chain, &wallet).await?;
if rewards.is_empty() {
println!("{}", serde_json::to_string_pretty(&serde_json::json!({
"ok": true,
"data": {
"action": "claim_rewards",
"chain": chain_name(args.chain), "chain_id": args.chain,
"wallet": wallet,
"status": "no_rewards",
"rewards": [],
"tip": "No claimable Merkl rewards on this chain. \
Note: Brevis / Fuul streams are not yet supported in this command.",
}
}))?);
return Ok(());
}
// 2. Build claim calldata.
//
// claim(
// address[] users,
// address[] tokens,
// uint256[] amounts,
// bytes32[][] proofs
// )
//
// For each reward we set users[i] = wallet, tokens[i] = reward token, amounts[i] =
// cumulative authorized amount (Merkl distributor enforces "amount is the running
// total user has ever earned, contract subtracts already-claimed from it").
let calldata = build_merkl_claim_calldata(&wallet, &rewards);
let total_claimable: u128 = rewards.iter().map(|r| r.claimable_raw).sum();
let summary: Vec<serde_json::Value> = rewards.iter().map(|r| serde_json::json!({
"token": r.token,
"symbol": r.symbol,
"cumulative_amount": r.cumulative_amount,
"claimable_raw": r.claimable_raw.to_string(),
"proofs_count": r.proofs.len(),
})).collect();
if !args.confirm {
println!("{}", serde_json::to_string_pretty(&serde_json::json!({
"ok": true, "dry_run": true,
"data": {
"action": "claim_rewards",
"chain": chain_name(args.chain), "chain_id": args.chain,
"wallet": wallet,
"distributor": MERKL_DISTRIBUTOR,
"rewards": summary,
"total_claimable_raw": total_claimable.to_string(),
"calldata_size_bytes": calldata.len() / 2 - 1, // strip 0x then bytes
"note": "dry-run: no transaction submitted",
}
}))?);
return Ok(());
}
// 3. Pre-flight gas
let need_wei = estimate_native_gas_cost_wei(args.chain, GAS_LIMIT_CLAIM).await?;
let have_wei = eth_get_balance_wei(args.chain, &wallet).await?;
if have_wei < need_wei {
anyhow::bail!(
"Insufficient native gas: have {:.6} ETH, need ~{:.6} ETH for Merkl claim.",
wei_to_eth(have_wei), wei_to_eth(need_wei)
);
}
// 4. Submit
eprintln!("[euler-v2] claim-rewards: submitting Merkl claim for {} reward token(s)...", rewards.len());
let resp = crate::onchainos::wallet_contract_call(
args.chain, MERKL_DISTRIBUTOR, &calldata,
Some(&wallet), None, false, false,
).await?;
let tx = crate::onchainos::extract_tx_hash(&resp)?;
eprintln!("[euler-v2] claim tx: {} (waiting...)", tx);
crate::onchainos::wait_for_tx_receipt(&tx, args.chain, 120).await?;
println!("{}", serde_json::to_string_pretty(&serde_json::json!({
"ok": true,
"data": {
"action": "claim_rewards",
"chain": chain_name(args.chain), "chain_id": args.chain,
"wallet": wallet,
"distributor": MERKL_DISTRIBUTOR,
"rewards_claimed": summary,
"tx_hash": tx, "on_chain_status": "0x1",
"tip": "Reward tokens transferred to your wallet. \
Brevis / Fuul streams (if any) require a separate claim flow not yet supported.",
}
}))?);
Ok(())
}
/// ABI-encode `claim(address[],address[],uint256[],bytes32[][])` for the given user + rewards.
fn build_merkl_claim_calldata(user: &str, rewards: &[crate::api::MerklReward]) -> String {
let n = rewards.len();
let user_padded = pad_address(user);
// Each of users / tokens / amounts is a uniform array of static words → simple encoding.
// proofs is an array of arrays — each inner array is bytes32[] (also static).
// Encode the four head offsets (relative to start of args section, i.e. after selector).
// Layout:
// [0..32] offset to users = 0x80
// [32..64] offset to tokens
// [64..96] offset to amounts
// [96..128] offset to proofs
//
// Each subsequent dynamic block: length word + words.
//
// users / tokens / amounts each take: 32 (length) + N×32 = (N+1)×32 bytes.
// proofs: 32 (top length) + N × (32 length + len_i × 32) bytes.
let users_block = encode_static_array(&vec![user_padded.clone(); n]);
let tokens_block = encode_static_array(&rewards.iter().map(|r| pad_address(&r.token)).collect());
let amounts_block = encode_static_array(&rewards.iter().map(|r| {
let amt: u128 = r.cumulative_amount.parse().unwrap_or(0);
format!("{:064x}", amt)
}).collect());
let proofs_block = encode_proofs_array(rewards);
// Compute offsets
let head_size = 4 * 32; // 4 offset words
let users_off = head_size;
let tokens_off = users_off + users_block.len() / 2;
let amounts_off = tokens_off + tokens_block.len() / 2;
let proofs_off = amounts_off + amounts_block.len() / 2;
let mut out = String::new();
out.push_str("0x");
out.push_str(SEL_MERKL_CLAIM);
out.push_str(&format!("{:064x}", users_off));
out.push_str(&format!("{:064x}", tokens_off));
out.push_str(&format!("{:064x}", amounts_off));
out.push_str(&format!("{:064x}", proofs_off));
out.push_str(&users_block);
out.push_str(&tokens_block);
out.push_str(&amounts_block);
out.push_str(&proofs_block);
out
}
/// Encode a uniform-static-element array: length word + words.
/// Each `word` should already be a 64-char hex string with no `0x`.
fn encode_static_array(words: &Vec<String>) -> String {
let mut s = String::new();
s.push_str(&format!("{:064x}", words.len()));
for w in words { s.push_str(w); }
s
}
/// Encode `bytes32[][]` for the proofs argument. Each inner array is
/// `length + N×32` bytes. Outer wraps as: length + offsets (each pointing to
/// inner array start, relative to start of OUTER data section) + inner arrays.
fn encode_proofs_array(rewards: &[crate::api::MerklReward]) -> String {
let n = rewards.len();
// Compute offsets table
let offset_table_bytes = (n * 32) as u64;
let mut inner_blocks: Vec<String> = Vec::with_capacity(n);
let mut offsets: Vec<String> = Vec::with_capacity(n);
let mut cursor = offset_table_bytes;
for r in rewards {
let m = r.proofs.len();
let mut inner = String::new();
inner.push_str(&format!("{:064x}", m));
for p in &r.proofs {
// Each proof is a 0x-prefixed 32-byte hex; strip 0x and pad if shorter.
let hex = p.trim_start_matches("0x");
if hex.len() < 64 {
inner.push_str(&format!("{:0>64}", hex));
} else {
inner.push_str(&hex[..64]);
}
}
offsets.push(format!("{:064x}", cursor));
cursor += (inner.len() / 2) as u64;
inner_blocks.push(inner);
}
let mut s = String::new();
s.push_str(&format!("{:064x}", n)); // outer length
for o in &offsets { s.push_str(o); }
for inner in &inner_blocks { s.push_str(inner); }
s
}
/// `euler-v2-plugin disable-collateral` — un-designate a vault's shares as collateral.
///
/// Calls EVC.disableCollateral(account, vault). Only succeeds if disabling does not
/// make the user's account unhealthy (i.e. there's no outstanding borrow that
/// depends on this collateral).
use anyhow::Result;
use clap::Args;
use crate::config::{chain_name, is_supported_chain};
use crate::rpc::{eth_get_balance_wei, estimate_native_gas_cost_wei, wei_to_eth};
use crate::calldata::build_disable_collateral;
const GAS_LIMIT_EVC_OP: u64 = 200_000;
#[derive(Args)]
pub struct DisableCollateralArgs {
#[arg(long)]
pub vault: String,
#[arg(long, default_value_t = 1)]
pub chain: u64,
#[arg(long)]
pub dry_run: bool,
/// Required to broadcast. Without this, the command prints a preview
/// (calldata + intent) and exits without touching the chain.
#[arg(long)]
pub confirm: bool,
}
pub async fn run(args: DisableCollateralArgs) -> Result<()> {
match run_inner(args).await {
Ok(()) => Ok(()),
Err(e) => { println!("{}", super::error_response(&e, Some("disable-collateral"), None)); Ok(()) }
}
}
async fn run_inner(args: DisableCollateralArgs) -> Result<()> {
if !is_supported_chain(args.chain) {
anyhow::bail!("Chain {} not supported in v0.1.", args.chain);
}
let vault_addr = args.vault.to_lowercase();
let chain_info = crate::api::get_chain(args.chain).await?;
let evc_addr = chain_info.addresses.core_addrs.evc.clone()
.ok_or_else(|| anyhow::anyhow!("EVC address missing for chain {}", args.chain))?
.to_lowercase();
let wallet = crate::onchainos::get_wallet_address(args.chain).await?;
let calldata = build_disable_collateral(&wallet, &vault_addr);
if !args.confirm {
println!("{}", serde_json::to_string_pretty(&serde_json::json!({
"ok": true, "dry_run": true,
"data": {
"action": "disable_collateral",
"chain": chain_name(args.chain), "chain_id": args.chain,
"wallet": wallet, "vault": vault_addr, "evc": evc_addr,
"calldata": calldata,
"note": "dry-run: no transaction submitted. \
Note: this will revert on-chain if removing this collateral would make the account unhealthy."
}
}))?);
return Ok(());
}
let need_wei = estimate_native_gas_cost_wei(args.chain, GAS_LIMIT_EVC_OP).await?;
let have_wei = eth_get_balance_wei(args.chain, &wallet).await?;
if have_wei < need_wei {
anyhow::bail!("Insufficient native gas: have {:.6} ETH, need ~{:.6} ETH.",
wei_to_eth(have_wei), wei_to_eth(need_wei));
}
eprintln!("[euler-v2] disabling collateral on {} via EVC...", vault_addr);
let resp = crate::onchainos::wallet_contract_call(
args.chain, &evc_addr, &calldata, Some(&wallet), None, false, false,
).await?;
let tx = crate::onchainos::extract_tx_hash(&resp)?;
eprintln!("[euler-v2] tx: {} (waiting...)", tx);
crate::onchainos::wait_for_tx_receipt(&tx, args.chain, 120).await?;
println!("{}", serde_json::to_string_pretty(&serde_json::json!({
"ok": true,
"data": {
"action": "disable_collateral",
"chain": chain_name(args.chain), "chain_id": args.chain,
"wallet": wallet, "vault": vault_addr,
"tx_hash": tx, "on_chain_status": "0x1",
}
}))?);
Ok(())
}
/// `euler-v2-plugin disable-controller` — release the borrower-vault designation.
///
/// Called on the **vault contract** (not the EVC), with no arguments. The vault's
/// `disableController()` function checks `debtOf(msg.sender) == 0` and only then
/// notifies EVC to clear the role. Required after `repay --all` to free up the
/// account for full collateral withdrawal.
use anyhow::Result;
use clap::Args;
use crate::config::{chain_name, is_supported_chain};
use crate::rpc::{eth_get_balance_wei, estimate_native_gas_cost_wei, wei_to_eth};
use crate::calldata::build_disable_controller;
const GAS_LIMIT: u64 = 200_000;
#[derive(Args)]
pub struct DisableControllerArgs {
/// The currently-enabled controller vault to disable
#[arg(long)]
pub vault: String,
#[arg(long, default_value_t = 1)]
pub chain: u64,
#[arg(long)]
pub dry_run: bool,
/// Required to broadcast. Without this, the command prints a preview
/// (calldata + intent) and exits without touching the chain.
#[arg(long)]
pub confirm: bool,
}
pub async fn run(args: DisableControllerArgs) -> Result<()> {
match run_inner(args).await {
Ok(()) => Ok(()),
Err(e) => { println!("{}", super::error_response(&e, Some("disable-controller"), None)); Ok(()) }
}
}
async fn run_inner(args: DisableControllerArgs) -> Result<()> {
if !is_supported_chain(args.chain) {
anyhow::bail!("Chain {} not supported in v0.1.", args.chain);
}
let vault_addr = args.vault.to_lowercase();
let wallet = crate::onchainos::get_wallet_address(args.chain).await?;
let calldata = build_disable_controller();
if !args.confirm {
println!("{}", serde_json::to_string_pretty(&serde_json::json!({
"ok": true, "dry_run": true,
"data": {
"action": "disable_controller",
"chain": chain_name(args.chain), "chain_id": args.chain,
"wallet": wallet, "vault": vault_addr,
"calldata": calldata,
"note": "dry-run: no transaction submitted. \
The vault enforces debtOf(account) == 0; if you still owe debt, this will revert. \
Repay first with `repay --vault <this> --all`."
}
}))?);
return Ok(());
}
let need_wei = estimate_native_gas_cost_wei(args.chain, GAS_LIMIT).await?;
let have_wei = eth_get_balance_wei(args.chain, &wallet).await?;
if have_wei < need_wei {
anyhow::bail!("Insufficient native gas: have {:.6} ETH, need ~{:.6} ETH.",
wei_to_eth(have_wei), wei_to_eth(need_wei));
}
eprintln!("[euler-v2] disabling controller on vault {}...", vault_addr);
let resp = crate::onchainos::wallet_contract_call(
args.chain, &vault_addr, &calldata, Some(&wallet), None, false, false,
).await?;
let tx = crate::onchainos::extract_tx_hash(&resp)?;
eprintln!("[euler-v2] tx: {} (waiting...)", tx);
crate::onchainos::wait_for_tx_receipt(&tx, args.chain, 120).await?;
println!("{}", serde_json::to_string_pretty(&serde_json::json!({
"ok": true,
"data": {
"action": "disable_controller",
"chain": chain_name(args.chain), "chain_id": args.chain,
"wallet": wallet, "vault": vault_addr,
"tx_hash": tx, "on_chain_status": "0x1",
"tip": "Controller cleared. You can now withdraw all collateral if desired."
}
}))?);
Ok(())
}
/// `euler-v2-plugin enable-collateral` — designate a vault's shares as collateral.
///
/// Calls EVC.enableCollateral(account, vault). Required before the EVC will count
/// the user's shares of `vault` as backing for any borrow position.
///
/// Idempotent: re-enabling an already-enabled vault is a no-op on-chain.
use anyhow::Result;
use clap::Args;
use crate::config::{chain_name, is_supported_chain};
use crate::rpc::{eth_get_balance_wei, estimate_native_gas_cost_wei, wei_to_eth};
use crate::calldata::build_enable_collateral;
const GAS_LIMIT_EVC_OP: u64 = 200_000;
#[derive(Args)]
pub struct EnableCollateralArgs {
/// Vault address whose shares should be marked as collateral
#[arg(long)]
pub vault: String,
#[arg(long, default_value_t = 1)]
pub chain: u64,
#[arg(long)]
pub dry_run: bool,
/// Required to broadcast. Without this, the command prints a preview
/// (calldata + intent) and exits without touching the chain.
#[arg(long)]
pub confirm: bool,
}
pub async fn run(args: EnableCollateralArgs) -> Result<()> {
match run_inner(args).await {
Ok(()) => Ok(()),
Err(e) => { println!("{}", super::error_response(&e, Some("enable-collateral"), None)); Ok(()) }
}
}
async fn run_inner(args: EnableCollateralArgs) -> Result<()> {
if !is_supported_chain(args.chain) {
anyhow::bail!("Chain {} not supported in v0.1.", args.chain);
}
let vault_addr = args.vault.to_lowercase();
let chain_info = crate::api::get_chain(args.chain).await?;
let evc_addr = chain_info.addresses.core_addrs.evc.clone()
.ok_or_else(|| anyhow::anyhow!("EVC address missing from /api/euler-chains for chain {}", args.chain))?
.to_lowercase();
let wallet = crate::onchainos::get_wallet_address(args.chain).await?;
let calldata = build_enable_collateral(&wallet, &vault_addr);
if !args.confirm {
println!("{}", serde_json::to_string_pretty(&serde_json::json!({
"ok": true, "dry_run": true,
"data": {
"action": "enable_collateral",
"chain": chain_name(args.chain), "chain_id": args.chain,
"wallet": wallet, "vault": vault_addr, "evc": evc_addr,
"calldata": calldata,
"note": "dry-run: no transaction submitted. Re-run without --dry-run to broadcast."
}
}))?);
return Ok(());
}
let need_wei = estimate_native_gas_cost_wei(args.chain, GAS_LIMIT_EVC_OP).await?;
let have_wei = eth_get_balance_wei(args.chain, &wallet).await?;
if have_wei < need_wei {
anyhow::bail!(
"Insufficient native gas: have {:.6} ETH, need ~{:.6} ETH on chain {}.",
wei_to_eth(have_wei), wei_to_eth(need_wei), args.chain
);
}
eprintln!("[euler-v2] enabling vault {} as collateral via EVC...", vault_addr);
let resp = crate::onchainos::wallet_contract_call(
args.chain, &evc_addr, &calldata,
Some(&wallet), None, false, false,
).await?;
let tx = crate::onchainos::extract_tx_hash(&resp)?;
eprintln!("[euler-v2] tx: {} (waiting...)", tx);
crate::onchainos::wait_for_tx_receipt(&tx, args.chain, 120).await?;
println!("{}", serde_json::to_string_pretty(&serde_json::json!({
"ok": true,
"data": {
"action": "enable_collateral",
"chain": chain_name(args.chain), "chain_id": args.chain,
"wallet": wallet, "vault": vault_addr, "evc": evc_addr,
"tx_hash": tx, "on_chain_status": "0x1",
"tip": "Vault is now collateral. Run `enable-controller --vault <borrower>` next, then `borrow`."
}
}))?);
Ok(())
}
/// `euler-v2-plugin enable-controller` — designate a vault as the borrower for the user's account.
///
/// In Euler v2, you must enable a "controller" vault before you can borrow from it.
/// The EVC tracks which vault is the borrower so it can run the account-liquidity
/// check across all enabled collateral vaults.
///
/// Calls EVC.enableController(account, vault). Idempotent.
use anyhow::Result;
use clap::Args;
use crate::config::{chain_name, is_supported_chain};
use crate::rpc::{eth_get_balance_wei, estimate_native_gas_cost_wei, wei_to_eth};
use crate::calldata::build_enable_controller;
const GAS_LIMIT_EVC_OP: u64 = 250_000;
#[derive(Args)]
pub struct EnableControllerArgs {
/// Vault to designate as borrower
#[arg(long)]
pub vault: String,
#[arg(long, default_value_t = 1)]
pub chain: u64,
#[arg(long)]
pub dry_run: bool,
/// Required to broadcast. Without this, the command prints a preview
/// (calldata + intent) and exits without touching the chain.
#[arg(long)]
pub confirm: bool,
}
pub async fn run(args: EnableControllerArgs) -> Result<()> {
match run_inner(args).await {
Ok(()) => Ok(()),
Err(e) => { println!("{}", super::error_response(&e, Some("enable-controller"), None)); Ok(()) }
}
}
async fn run_inner(args: EnableControllerArgs) -> Result<()> {
if !is_supported_chain(args.chain) {
anyhow::bail!("Chain {} not supported in v0.1.", args.chain);
}
let vault_addr = args.vault.to_lowercase();
let chain_info = crate::api::get_chain(args.chain).await?;
let evc_addr = chain_info.addresses.core_addrs.evc.clone()
.ok_or_else(|| anyhow::anyhow!("EVC address missing for chain {}", args.chain))?
.to_lowercase();
let wallet = crate::onchainos::get_wallet_address(args.chain).await?;
let calldata = build_enable_controller(&wallet, &vault_addr);
if !args.confirm {
println!("{}", serde_json::to_string_pretty(&serde_json::json!({
"ok": true, "dry_run": true,
"data": {
"action": "enable_controller",
"chain": chain_name(args.chain), "chain_id": args.chain,
"wallet": wallet, "vault": vault_addr, "evc": evc_addr,
"calldata": calldata,
"note": "dry-run: no transaction submitted",
"tip": "After enabling, run `borrow --vault ".to_string() + &vault_addr + " --amount <N>`."
}
}))?);
return Ok(());
}
let need_wei = estimate_native_gas_cost_wei(args.chain, GAS_LIMIT_EVC_OP).await?;
let have_wei = eth_get_balance_wei(args.chain, &wallet).await?;
if have_wei < need_wei {
anyhow::bail!("Insufficient native gas: have {:.6} ETH, need ~{:.6} ETH.",
wei_to_eth(have_wei), wei_to_eth(need_wei));
}
eprintln!("[euler-v2] enabling controller {} via EVC...", vault_addr);
let resp = crate::onchainos::wallet_contract_call(
args.chain, &evc_addr, &calldata, Some(&wallet), None, false, false,
).await?;
let tx = crate::onchainos::extract_tx_hash(&resp)?;
eprintln!("[euler-v2] tx: {} (waiting...)", tx);
crate::onchainos::wait_for_tx_receipt(&tx, args.chain, 120).await?;
println!("{}", serde_json::to_string_pretty(&serde_json::json!({
"ok": true,
"data": {
"action": "enable_controller",
"chain": chain_name(args.chain), "chain_id": args.chain,
"wallet": wallet, "vault": vault_addr,
"tx_hash": tx, "on_chain_status": "0x1",
"tip": "Now you can `borrow --vault <this-vault> --amount <N>`."
}
}))?);
Ok(())
}
/// `euler-v2-plugin get-vault` — full details for a single EVK vault.
///
/// Combines:
/// - Static metadata from `/api/vaults` (name, asset, IRM, oracle)
/// - Live on-chain reads (`vault.totalAssets()`, `vault.totalSupply()` via direct RPC)
///
/// Read-only. No wallet required.
use anyhow::Result;
use clap::Args;
use crate::config::{chain_name, is_supported_chain};
#[derive(Args)]
pub struct GetVaultArgs {
/// Vault address (0x-prefixed hex)
#[arg(long)]
pub address: String,
/// Chain ID: 1 / 8453 / 42161
#[arg(long, default_value_t = 1)]
pub chain: u64,
}
pub async fn run(args: GetVaultArgs) -> Result<()> {
match run_inner(args).await {
Ok(()) => Ok(()),
Err(e) => {
println!("{}", super::error_response(&e, Some("get-vault"), None));
Ok(())
}
}
}
async fn run_inner(args: GetVaultArgs) -> Result<()> {
if !is_supported_chain(args.chain) {
anyhow::bail!(
"Chain {} not supported in v0.1. Use 1 (Ethereum), 8453 (Base), or 42161 (Arbitrum).",
args.chain
);
}
let target_addr = args.address.to_lowercase();
if !target_addr.starts_with("0x") || target_addr.len() != 42 {
anyhow::bail!(
"Invalid vault address '{}'. Expect 0x-prefixed 40-hex-char address.",
args.address
);
}
// 1. Look up the vault in the API response
let vaults = crate::api::get_vaults_raw(args.chain).await?;
let evk = vaults["evkVaults"].as_array()
.ok_or_else(|| anyhow::anyhow!("Euler API returned no evkVaults field for chain {}", args.chain))?;
let entry = evk.iter()
.find(|v| v["address"].as_str().map(|s| s.to_lowercase()) == Some(target_addr.clone()))
.ok_or_else(|| anyhow::anyhow!(
"Vault {} not found in Euler API for chain {}. \
Run `list-vaults --chain {}` to see available vaults.",
args.address, args.chain, args.chain
))?;
// 2. Live on-chain reads (parallel)
use crate::rpc::{build_address_call, eth_call, parse_uint256_to_u128, SELECTOR_BALANCE_OF};
// totalAssets selector: keccak256("totalAssets()")[:4] = 0x01e1d114
// totalSupply selector: keccak256("totalSupply()")[:4] = 0x18160ddd
let total_assets_calldata = "0x01e1d114".to_string();
let total_supply_calldata = "0x18160ddd".to_string();
let cash_calldata = "0x47e7ef24".to_string(); // placeholder; cash() may differ — kept as best-effort
let _ = SELECTOR_BALANCE_OF;
let _ = build_address_call;
let (ta_res, ts_res) = tokio::join!(
eth_call(args.chain, &target_addr, &total_assets_calldata),
eth_call(args.chain, &target_addr, &total_supply_calldata),
);
let total_assets = ta_res.ok().map(|h| parse_uint256_to_u128(&h));
let total_supply = ts_res.ok().map(|h| parse_uint256_to_u128(&h));
let _ = cash_calldata;
println!(
"{}",
serde_json::to_string_pretty(&serde_json::json!({
"ok": true,
"data": {
"chain": chain_name(args.chain),
"chain_id": args.chain,
"address": entry["address"],
"name": entry["name"],
"verified": entry["verified"],
"asset": entry.get("asset"),
"irm": entry.get("irm"),
"supply_raw_api": entry["supply"]["__bi"].as_str().unwrap_or("0"),
"borrow_raw_api": entry["borrow"]["__bi"].as_str().unwrap_or("0"),
"live": {
"total_assets_raw": total_assets.map(|v| v.to_string()),
"total_supply_raw": total_supply.map(|v| v.to_string()),
},
"tip": "Use `supply --vault <address> --amount <N>` to deposit; \
`positions --chain <id>` to see your stake."
}
}))?
);
Ok(())
}
/// `euler-v2-plugin list-vaults` — list EVK vaults on the requested chain.
///
/// Read-only. Pure API call to `/api/vaults?chainId=<id>`. No wallet, no RPC.
use anyhow::Result;
use clap::Args;
use crate::config::{chain_name, is_supported_chain};
#[derive(Args)]
pub struct ListVaultsArgs {
#[arg(long, default_value_t = 1)]
pub chain: u64,
/// Filter to only verified vaults (default: true).
#[arg(long, default_value_t = true)]
pub verified_only: bool,
/// Limit number of vaults shown (default: 20, max 200).
#[arg(long, default_value_t = 20)]
pub limit: usize,
}
pub async fn run(args: ListVaultsArgs) -> Result<()> {
match run_inner(args).await {
Ok(()) => Ok(()),
Err(e) => {
println!("{}", super::error_response(&e, Some("list-vaults"), None));
Ok(())
}
}
}
async fn run_inner(args: ListVaultsArgs) -> Result<()> {
if !is_supported_chain(args.chain) {
anyhow::bail!(
"Chain {} not supported in v0.1. Use 1 (Ethereum), 8453 (Base), or 42161 (Arbitrum).",
args.chain
);
}
let limit = args.limit.min(200);
let vaults = crate::api::get_vaults_raw(args.chain).await?;
let evk = vaults["evkVaults"].as_array()
.ok_or_else(|| anyhow::anyhow!("Euler API returned no evkVaults field for chain {}", args.chain))?;
let mut entries: Vec<serde_json::Value> = evk.iter()
.filter(|v| !args.verified_only || v["verified"].as_bool() == Some(true))
.take(limit)
.map(|v| serde_json::json!({
"address": v["address"],
"name": v["name"],
"verified": v["verified"],
// Big-int fields are wrapped as {"__bi": "<digits>"} by the API.
// We surface them as raw decimal strings for now; later commands can
// enrich with token decimals + USD pricing.
"supply_raw": v["supply"]["__bi"].as_str().unwrap_or("0"),
"borrow_raw": v["borrow"]["__bi"].as_str().unwrap_or("0"),
"asset": v.get("asset"),
"irm": v.get("irm"),
}))
.collect();
let total_evk = evk.len();
let returned = entries.len();
// Stable order: keep API order (Euler returns by TVL).
// Truncate over-eager fields if any vault is missing them.
for e in entries.iter_mut() {
if e.get("asset").is_none() { e["asset"] = serde_json::Value::Null; }
if e.get("irm").is_none() { e["irm"] = serde_json::Value::Null; }
}
println!(
"{}",
serde_json::to_string_pretty(&serde_json::json!({
"ok": true,
"data": {
"chain": chain_name(args.chain),
"chain_id": args.chain,
"total_evk_vaults": total_evk,
"returned": returned,
"verified_only": args.verified_only,
"vaults": entries,
"tip": "Use `get-vault --address <address>` for full vault details (APY, caps, oracle). \
Use `supply --vault <address> --amount <N>` to deposit."
}
}))?
);
Ok(())
}
/// Chain configuration for Euler v2 plugin.
///
/// Address book is fetched dynamically from `app.euler.finance/api/euler-chains`,
/// so this module only holds default RPC URLs (env-overridable for tests) and the
/// list of chain IDs we ship support for in v0.1.
pub struct Urls;
impl Urls {
pub const EULER_API: &'static str = "https://app.euler.finance";
pub const ETHEREUM_RPC: &'static str = "https://ethereum-rpc.publicnode.com";
pub const BASE_RPC: &'static str = "https://base-rpc.publicnode.com";
pub const ARBITRUM_RPC: &'static str = "https://arbitrum.drpc.org";
/// Test-overridable accessors. Production reads the env var; tests inject mock URLs.
pub fn euler_api() -> String {
std::env::var("EULER_TEST_API_URL")
.unwrap_or_else(|_| Self::EULER_API.to_string())
}
pub fn rpc_for_chain(chain_id: u64) -> Option<String> {
match chain_id {
1 => Some(std::env::var("EULER_TEST_ETHEREUM_RPC").unwrap_or_else(|_| Self::ETHEREUM_RPC.to_string())),
8453 => Some(std::env::var("EULER_TEST_BASE_RPC").unwrap_or_else(|_| Self::BASE_RPC.to_string())),
42161 => Some(std::env::var("EULER_TEST_ARBITRUM_RPC").unwrap_or_else(|_| Self::ARBITRUM_RPC.to_string())),
_ => None,
}
}
}
/// Chains supported in v0.1. Adding a new chain only requires:
/// 1. Adding it here
/// 2. Adding the RPC URL to `rpc_for_chain`
/// 3. Adding the RPC domain to plugin.yaml `api_calls`
/// All contract addresses come from `/api/euler-chains`.
pub const SUPPORTED_CHAINS: &[(u64, &str)] = &[
(1, "ethereum"),
(8453, "base"),
(42161, "arbitrum"),
];
pub fn chain_name(chain_id: u64) -> Option<&'static str> {
SUPPORTED_CHAINS.iter()
.find(|(id, _)| *id == chain_id)
.map(|(_, name)| *name)
}
pub fn is_supported_chain(chain_id: u64) -> bool {
SUPPORTED_CHAINS.iter().any(|(id, _)| *id == chain_id)
}