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Medical Terminologies MCP

Diagnoses, drugs & lab codes: ICD-11, LOINC, RxNorm, MeSH, ATC, CID-10. 33 tools, MIT.

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★ 16 stars Last pushed 2026-11-09 License: MIT

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Review any command before running it. Package names and URLs come from the server's own registry entry.

Remote (streamable-http)

https://medical.sidneybissoli.com/mcp Responded, but not as an MCP endpoint

Claude Code:

claude mcp add --transport http medical-terminologies-mcp https://medical.sidneybissoli.com/mcp

Or add to your MCP client config:

{
  "mcpServers": {
    "medical-terminologies-mcp": {
      "url": "https://medical.sidneybissoli.com/mcp"
    }
  }
}

Package (npm 2.4.0)

npx -y [email protected]

Or add to your MCP client config:

{
  "mcpServers": {
    "medical-terminologies-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "WHO_CLIENT_SECRET": "<YOUR_VALUE>"
      }
    }
  }
}

WHO_CLIENT_ID — WHO ICD-11 API Client ID. Required only for ICD-11 tools (5 tools); the server starts without it and other terminologies (LOINC, RxNorm, MeSH, ATC, CID-10) work unauthenticated. Get credentials at https://icd.who.int/icdapi.
WHO_CLIENT_SECRET secret — WHO ICD-11 API Client Secret. Required only for ICD-11 tools.
WHO_ICD11_RELEASE_ID — ICD-11 release to query (e.g. 2024-01, 2025-01). Optional; defaults to 2026-01.
LOG_LEVEL — pino log level (debug, info, warn, error, fatal). Optional; defaults to 'info'. Logs go to stderr only — never stdout (which is the MCP stdio transport).

Package (npm 2.4.0)

Package: npm medical-terminologies-mcp

WHO_CLIENT_ID — WHO ICD-11 API Client ID. Required only for ICD-11 tools.
WHO_CLIENT_SECRET secret — WHO ICD-11 API Client Secret. Required only for ICD-11 tools.
WHO_ICD11_RELEASE_ID — ICD-11 release to query (e.g. 2024-01, 2025-01). Optional; defaults to 2026-01.
LOG_LEVEL — pino log level. Optional; defaults to 'info'.

This server takes extra arguments — see its repository.