Backend & Data · Web3 & Blockchain

Web3 & Blockchain Skills

The best Web3 & Blockchain skills for Claude Code, Codex, Cursor & all other coding agents, ranked by real installs - agent skills, MCP servers and marketplaces tagged Web3 & Blockchain, a focused slice of the broader Backend & Data category. Covers Solidity, Ethereum and smart contracts and more.

What's in Web3 & Blockchain

Web3 & Blockchain collects 484 tools across agent skills, led by Solidity Security, Extension Http Outcalls and Okx Dapp Discovery, a focused part of the broader Backend & Data category. The list is updated automatically and ranked by real adoption - installs first, then GitHub stars.

Use the filters below to narrow by type, or open a stage hub to see these tools alongside everything else that stage needs.

412 entries

1Solidity Securitywshobson/agentsCatch and fix critical Solidity vulnerabilities like reentrancy before deploying smart contracts.Backend & Data

13.2k38.7k

2Extension Http Outcallscaffeinelabs/skillsEnable their Internet Computer backend canister to make secure HTTP GET and POST requests to external APIs.Backend & Data

12.2k0

3Okx Dapp Discoveryokx/onchainos-skillsCorrectly route Chinese-language DeFi and on-chain queries to the right protocol plugins inside an agent workflow.Backend & Data

10.5k319

6Query Token Infobinance/binance-skills-hubGive your coding agent a Node CLI to search Binance tokens and pull metadata while you build crypto or DeFi features.Backend & Data

6.2k952

7Nodejs Keccak256affaan-m/everything-claude-codeCompute correct Ethereum Keccak-256 hashes in JavaScript and TypeScript instead of the incompatible NIST SHA3-256 from Node crypto.Backend & Data

4.1k239k

8Coderstarchild-ai-agent/official-skillsGet an always-on code specialist that reads context, makes surgical edits, runs verification commands, and delivers working, tested code instead of placeholder suggestiBackend & Data-4.1k22

9Evm Token Decimalsaffaan-m/everything-claude-codeEliminate silent decimal-mismatch bugs when reading ERC-20 balances or calculating fiat values across EVM chains.Backend & Data

4.1k239k

11Algorand Vulnerability Scannertrailofbits/skillsAutomatically scan Algorand smart contracts and smart signatures for critical rekeying attacks, unchecked transaction fees, and other high-severity vulnerabBackend & Data

4k6.5k

13Onchain Pay Open Apibinance/binance-skills-hubSign and call Binance Onchain Pay Open API endpoints securely from scripts or agents.Backend & Data

3.7k952

14Colosseum Copilotcolosseumorg/colosseum-copilotQuery hackathon data, analyze projects, and generate contextual suggestions while building AI agents and competitive submissions.Backend & Data

2.9k11

15Ethskillsaustintgriffith/ethskillsGive their coding agent accurate, up-to-date Ethereum, EVM, and blockchain knowledge that prevents hallucinations about gas costs, token standards, L2 networks, and DeFBackend & Data

2.4k246

16Defi Attack Patternsyaklang/hack-skillsGive their agent deep knowledge of real-world DeFi exploits when auditing smart contracts or analyzing protocol attacks.Backend & Data

2.4k1.6k

17Smart Contract Vulnerabilitiesyaklang/hack-skillsSystematically audit Solidity and EVM smart contracts for high-severity vulnerabilities before deployment.Backend & Data

2.3k1.6k

18Daangn Cars Searchnomadamas/k-skillQuickly surface real-time used-car market data from Korea's largest classifieds platform inside agent workflows.Backend & Data

2.1k7.1k

19Adspower Browseradspower/adspower-browserProgrammatically create, launch, and manage AdsPower anti-detect browser profiles and proxies directly from Claude or Cursor agents.Backend & Data

1.8k128

20Blockchain Developersickn33/antigravity-awesome-skillsGet expert guidance, best practices, checklists, and implementation steps when building production-grade smart contracts, DeFi protocols, NFT platforms, DAOs, orBackend & Data

1.1k44.7k

21Solanamindrally/skillsGet expert guidance when writing secure, efficient Solana programs using Rust, the Anchor framework, and Web3.js.Backend & Data

607223

22Use Smart Contract Platformcirclefin/skillsCorrectly call Circle's smart contract platform APIs and handle blockchain interactions without writing low-level transaction code from scratch.Backend & Data

600139

25Simduneanalytics/skillsPrototype and simulate on-chain analytics queries, dashboards, and metrics on Dune before committing schemas, contracts, or production pipelines.Backend & Data

52424

27Bankr Agent Transfersbankrbot/claude-pluginsEnable Bankr agents to send tokens or native assets with address validation, fee estimation, and transfer confirmation.Backend & Data

45780

29Polymarket Pluginokx/plugin-storeWire Polymarket prediction market listings, odds, and trading actions into OKX plugin or agent experiences via onchain market APIs.Backend & Data

43212

30Alchemy Clialchemyplatform/skillsConfigure Alchemy RPC keys, spin up local chain tooling, and wire blockchain providers into apps or agents without hand-rolling auth, endpoints, and deployment scripts each time.Backend & Data

43146

31Nansen Smart Money Alphanansen-ai/nansen-cliQuery Nansen CLI smart-money flows to spot whale accumulation, sector rotation, and on-chain alpha signals before broader market repricing.Backend & Data

409127

32Ethereum Wingmanaustintgriffith/ethereum-wingmanAccelerate Ethereum smart contract, dApp, and wallet integration work with guided patterns for Solidity, tooling, testing, and deployment decisions.Backend & Data

39345

52Base Mcpbase/skillsGive an AI assistant Base Account access to check balances, send, swap, sign, make x402 payments, and route DeFi plugins.Backend & Data

352105

53Alchemy Mcpalchemyplatform/skillsUse when adding an Alchemy MCP server so coding agents can query chain data, balances, NFT metadata, and Web3 utilities through standardized model context protocol tools.Backend & Data

35146

55Cli Anything Eth2 Quickstarthkuds/cli-anythingBootstrap Ethereum 2 staking or validator quickstart flows via CLI when prototyping Web3 backends, testnets, or node integrations.Backend & Data

35046.9k

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FAQ

Web3 & Blockchain tools - common questions

What are Web3 & Blockchain skills for Claude Code?

Web3 & Blockchain skills teach Claude Code, Codex, Cursor and other coding agents to handle Web3 & Blockchain work - Solidity, Ethereum and smart contracts and more. A focused, ranked slice of the broader Backend & Data category across skills, MCP servers and marketplaces, each installable with one command.

How do I install a Web3 & Blockchain skill?

Copy the one-line install command shown on any listing - for example npx skills add https://github.com/owner/repo --skill name. It's instantly available in your next Claude Code, Codex or Cursor session.

Which Web3 & Blockchain skills are covered?

Solidity, Ethereum and smart contracts and more - every Web3 & Blockchain listing across skills, MCP servers and marketplaces, ranked by installs and GitHub stars, never paid placement.