9 tools that work with Solidity: 4 MCP servers, 5 Agent Skills and 0 Claude Code plugins. 1 of the remote servers answered our live check, 0 worked without an API key, and 1 come from an official or verified publisher. Ranked by GitHub stars plus official, live and free-to-try signals.
Most common uses: Code & dependency scanning (3), Code search, analysis, refactoring & languages (3), Testing & QA (2), SQL databases (1).
| Tool | Stars | Last update | License | |
|---|---|---|---|---|
| solidity-security Master smart contract security best practices to prevent common vulnerabilities and implement secure Solidity patterns. Use when writing smart contrac SkillInstall · skills CLI | 42,495 | MIT | ||
| fizz Generate Echidna/Medusa-compatible Solidity fuzz suites from Foundry or Hardhat projects. Trigger on "fizz", "generate fuzz suite", "build fuzz harnes SkillInstall · skills CLI | 1,311 | MIT | ||
| solidity-auditor Security audit of Solidity code while you develop. Trigger on "audit", "check this contract", "review for security", "loop mode", "run the auditor in SkillInstall · skills CLI | 1,311 | MIT | ||
| upgrade-solidity-contracts Upgrade Solidity smart contracts using OpenZeppelin proxy patterns. Use when users need to: (1) make contracts upgradeable with UUPS, Transparent, or SkillInstall · skills CLI | 224 | AGPL-3.0 | ||
| web3-solidity-audit-mcp MCP server integrating Slither + Aderyn + SWC patterns into Claude Code for smart contract auditing. Use when analyzing Solidity files, running DeFi-s SkillInstall · skills CLI | 185 | MIT | ||
| Kestrova Solidity Security Scan Free Slither scan of Solidity contracts for AI coding agents; optional paid report (1 USDC, x402). MCP serverVerified domain · kestrova-api.onrender.comRemote● Live | — | — | ||
| Solidity Compiler IDE Browser Solidity compiler IDE - smart contract development testing deploy MCP serverGitHub-verified author | 28 | — | ||
| Bug Bounty Intelligence AI security scanner for Solidity + free CC0 dataset of Sherlock audit-competition acceptance rates. MCP serverGitHub-verified authorRemoteDown | 11 | MIT | ||
| io.github.vschernoff/solhint-mcp MCP server for Solhint — lint and autofix Solidity smart contracts from any MCP client MCP serverGitHub-verified authorLocal · npm | 1 | MIT |