Bankr Agent Polymarket
- 362 installs
- 80 repo stars
- Updated March 24, 2026
- bankrbot/claude-plugins
bankr agent - polymarket is a Claude Code skill that connects Bankr agents to Polymarket on Polygon for searching markets, reading odds, placing bets, and redeeming shares for developers who automate prediction-market de
About
bankr agent - polymarket (version 1.0.0) in BankrBot/claude-plugins guides agents to interact with Polymarket prediction markets on Polygon using USDC.e for betting. Users search politics, sports, crypto, and culture markets, check outcome odds where share price equals implied probability, and place Yes or No bets through natural-language prompts. The skill explains share economics: a $0.60 Yes share implies 60% odds and pays $1 if correct. Bankr auto-bridges USDC from other chains when Polygon balance is insufficient. Prompt examples cover searching election markets, checking Eagles game odds, betting $10 on Yes, viewing open positions, and redeeming after resolution. Common issues include market-not-found searches, insufficient USDC, and betting on already-resolved markets. Developers reach for bankr agent - polymarket when agents need prediction-market data or execution alongside crypto trading. Triggers include Polymarket, prediction markets, betting odds, election bets, and market redemption requests.
- Polymarket API integration patterns
- Prediction-market data for agents
- Bankr agent action orchestration
- Market odds and event context
- External platform wiring
Bankr Agent Polymarket by the numbers
- 362 all-time installs (skills.sh)
- Ranked #2,109 of 16,546 AI & Agent Building skills by installs in the Skillselion catalog
- Data as of Jul 31, 2026 (Skillselion catalog sync)
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| Installs | 362 |
|---|---|
| repo stars | ★ 80 |
| Last updated | March 24, 2026 |
| Repository | bankrbot/claude-plugins ↗ |
How do Bankr agents bet on Polymarket markets?
Connect a Bankr agent to Polymarket to query markets, interpret odds, and support agent decisions tied to prediction-market data and actions.
Who is it for?
Developers building Bankr agents that query prediction-market odds or execute small Polymarket bets on Polygon with auto-bridging support.
Skip if: Traditional sportsbook integrations or teams that need regulated US wagering compliance outside on-chain prediction markets.
When should I use this skill?
User mentions Polymarket, prediction markets, betting odds, election bets, market predictions, or redeeming Polymarket positions.
What you get
Polymarket odds summaries, placed bet confirmations, open position lists, and redeemed USDC.e payouts after market resolution.
- Odds summaries
- Bet confirmations
- Redeemed position payouts
By the numbers
- 4 market categories: politics, sports, crypto, culture
- Skill version 1.0.0 on Polygon with USDC.e
- Share payouts of $1 per winning share
Files
Safety & Access Control
Comprehensive safety guidance for using the Bankr API and CLI.
API Key Types
Bankr uses a single key format (bk_...) with capability flags:
| Flag | Controls | Default |
|---|---|---|
agentApiEnabled | /agent/* endpoints | false |
llmGatewayEnabled | LLM Gateway at llm.bankr.bot | false |
readOnly | Restricts agent to read-only tools | false |
Manage flags at bankr.bot/api.
Read-Only API Keys
When readOnly: true, all write tools are filtered from the agent session:
Allowed: Balances, prices, analytics, portfolio, research Blocked: Swaps, transfers, NFT purchases, staking, orders, token launches, leverage, Polymarket bets, claims
The /agent/sign and /agent/submit endpoints return 403 for read-only keys.
IP Whitelisting
Set allowedIps on your API key to restrict usage to specific IPs. Requests from non-whitelisted IPs are rejected with 403.
- Empty array = all IPs allowed (default)
- Non-empty array = only listed IPs can use the key
Dedicated Agent Wallet
When building autonomous agents, create a separate Bankr account rather than using your personal wallet:
- Limited exposure — compromised key only exposes agent wallet funds
- Clear accounting — agent transactions isolated from personal activity
- Independent controls — apply stricter access controls without affecting personal use
- Easy revocation — disable agent account without disrupting primary wallet
Recommended Funding
| Chain | Gas Buffer | Trading Capital |
|---|---|---|
| Base | 0.01-0.05 ETH | As needed |
| Polygon | 5-10 MATIC | As needed |
| Ethereum | 0.05-0.1 ETH | As needed |
| Solana | 0.1-0.5 SOL | As needed |
Rate Limits
| Tier | Daily Limit |
|---|---|
| Standard | 100 messages/day |
| Bankr Club | 1,000 messages/day |
| Custom | Set per API key |
Reset window is 24 hours from first message (rolling), not midnight.
Key Management
- Store keys in environment variables (
BANKR_API_KEY,BANKR_LLM_KEY), never in source code - Add
~/.bankr/and.envto.gitignore - Rotate keys periodically at bankr.bot/api
- Revoke immediately if compromised
- Use separate keys for Agent API vs LLM Gateway if needed
Transaction Safety
- Test first — small amounts on Base/Polygon before scaling
- Verify recipients — double-check addresses before transfers
- Gas buffer — keep enough native tokens for gas
- Immediate execution —
/agent/submitexecutes with no confirmation prompt - Understand calldata — verify trusted source for arbitrary transactions
Pre-Deployment Checklist
- Use a dedicated agent wallet, not your personal account
- Fund with limited amounts appropriate to purpose
- Set read-only if agent only queries data
- Configure IP whitelisting for server-side agents
- Store keys in environment variables
- Test with small amounts first
- Implement error handling for rate limits (429) and access control (403)
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Pick bankr agent - polymarket for on-chain prediction markets; pick bankr-market-research for macro crypto price analysis without placing bets.
FAQ
How does Polymarket betting work in Bankr?
bankr agent - polymarket explains that users buy Yes or No shares on Polygon where price reflects probability; winning shares pay $1 each, so a $0.60 Yes purchase implies 60% implied odds.
What chain does bankr agent - polymarket use?
bankr agent - polymarket operates on Polygon with USDC.e for bets, and Bankr auto-bridges USDC from other chains when the Polygon wallet balance is insufficient.
Can agents redeem Polymarket winnings?
bankr agent - polymarket includes prompts to show open Polymarket positions and redeem shares after markets resolve, with guidance to redeem promptly for best liquidity.