Slither MCP Server

uvx --from git+https://github.com/trailofbits/slither-mcp slither-mcp

{
  "mcpServers": {
    "slither-mcp": {
      "command": "uvx",
      "args": [
        "--from",
        "git+https://github.com/trailofbits/slither-mcp",
        "slither-mcp"
      ]
    }
  }
}

Reading a smart contract by opening files misses the thing that matters most, which is who can reach a privileged function. Slither already builds that graph, and this server from its maintainers exposes it as tools: list contracts filtered by concrete, abstract, interface or library, walk callers and callees of a function including low-level calls, and climb inheritance in both directions. Detector output is available with filtering, so an agent can pull only the high-confidence findings instead of the whole report. Analysis results are cached to artifacts/project_facts.json inside the project, which is what makes repeated queries cheap across a long review session on a Foundry or Hardhat tree.