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mcp/harbor
Verified official

x509 mcp MCP

v1.0.1

io.github.mrfentmen/x509-mcp

Decode PEM certificates, check expiry and inspect a live TLS certificate, all offline

transport:stdio runtime:npm
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Target client

run in your project directory 

claude mcp add x509-mcp -- npx -y @mrfentmen/x509-mcp

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

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

This listing does not declare its tools. Connect the server and your client will discover them on the handshake.