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mcp/harbor
Verified official

Preflight MCP

v0.1.0

io.github.dainidude/preflight

Pay-per-call smart-contract security: scans, tx simulation, and token risk via x402 (USDC on Base).

transport:streamable-http tools:4
View source

Target client

run in your project directory 

claude mcp add --transport http preflight https://preflight--preflight-api-mcp.modal.run/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

preflight_check

preflight check

preflight_sim

preflight sim

preflight_token_risk

preflight token risk

preflight_pricing

preflight pricing

All 4 tools, one page each

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.