MCP Servers

lazaretto-mcp

An MCP server that lets an agent verify a skill, tool, or package before it installs it.

README

lazaretto-mcp

An MCP server that lets an agent verify a skill, tool, or package before it installs it. It is a thin client for the Lazaretto API — it ships no detection logic and does nothing but make two HTTPS requests, so it is easy to audit.

Tools

known_bad_lookup — free, no key. Is a sha256 content hash a known-bad artifact? (Exact-hash match against an indicator store refreshed daily.)
scan_artifact — fetches a target (npm package, GitHub repo, ClawHub skill, raw URL, or inline text) without running it and returns a deterministic verdict (malicious / flagged / clear / error) with evidence. A full scan is paid: set LAZARETTO_API_KEY (prepaid credits) or pay via x402.

Reports are signals with evidence, not a warranty. clear means no known-bad match and no rule fired — not a statement about risk.

Install

npx lazaretto-mcp

Configure (Claude Desktop / Cursor / any MCP client)

{
  "mcpServers": {
    "lazaretto": {
      "command": "npx",
      "args": ["-y", "lazaretto-mcp"],
      "env": {
        "LAZARETTO_API_KEY": "lz_...    (optional — buy credits at https://lazaretto.dev/#pricing)"
      }
    }
  }
}

LAZARETTO_BASE_URL overrides the API host (default https://lazaretto.dev).

License

MIT. The Lazaretto service and its detection engine are separate and proprietary.

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