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io.github.mrfentmen/x509-mcp

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Publisher-provided description

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

Summary by lookupd

Decodes PEM certificates, reports expiry dates, and inspects live TLS certificates without any network calls for offline checks.

Install

Claude Code, npm package (stdio)

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

Codex, npm package (stdio)

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

Cursor, npm package (stdio) → .cursor/mcp.json

{
  "mcpServers": {
    "x509": {
      "command": "npx",
      "args": [
        "-y",
        "@mrfentmen/x509-mcp"
      ]
    }
  }
}

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