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mcp/harbor
Verified official

Preflight MCP

v1.0.0

com.allthepossibles/preflight

Scans an MCP server for security gaps before your agent connects. Free tier, no signup.

transport:streamable-http tools:4
Website

Target client

run in your project directory 

claude mcp add --transport http preflight https://preflight.allthepossibles.com/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

scan_mcp_server

scan mcp server

scan_content

scan content

scan_extension

scan extension

check_output Read-only

check output

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.