Medical Terminologies MCP

Remote (streamable-http)

https://medical.sidneybissoli.com/mcp Reachable (checked 2026-09-24)

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 1.12.1)

npx -y medical-terminologies-mcp@1.12.1

Or add to your MCP client config:

{
  "mcpServers": {
    "medical-terminologies-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "medical-terminologies-mcp@1.12.1"
      ],
      "env": {
        "WHO_CLIENT_ID": "<YOUR_VALUE>",
        "WHO_CLIENT_SECRET": "<YOUR_VALUE>",
        "WHO_ICD11_RELEASE_ID": "<YOUR_VALUE>",
        "ENABLE_SNOMED_TOOLS": "<YOUR_VALUE>",
        "SNOMED_BASE_URL": "<YOUR_VALUE>",
        "SNOMED_LANGUAGE": "<YOUR_VALUE>",
        "LOG_LEVEL": "<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 2024-01.
• ENABLE_SNOMED_TOOLS — Set to 'true' to register the 6 SNOMED-dependent tools (snomed_search, snomed_concept, snomed_hierarchy, snomed_descriptions, snomed_ecl, plus map_snomed_to_icd10). Disabled by default because the historical public IHTSDO Snowstorm endpoint was retired (HTTP 410 Gone). Requires SNOMED_BASE_URL pointing at a working self-hosted Snowstorm.
• SNOMED_BASE_URL — Base URL of a self-hosted Snowstorm instance (e.g. https://my-snowstorm.example.com/snowstorm/snomed-ct). Required only when ENABLE_SNOMED_TOOLS is true.
• SNOMED_LANGUAGE — Accept-Language tag(s) for SNOMED responses (e.g. pt, pt-BR, es). Optional; defaults to 'en'. Composite values with q-weights depend on the upstream Snowstorm instance.
• 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 1.12.1)

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 2024-01.
• ENABLE_SNOMED_TOOLS — Set to 'true' to register the 6 SNOMED-dependent tools. Requires SNOMED_BASE_URL.
• SNOMED_BASE_URL — Base URL of a self-hosted Snowstorm instance. Required only when ENABLE_SNOMED_TOOLS is true.
• SNOMED_LANGUAGE — Accept-Language tag(s) for SNOMED responses (e.g. pt, pt-BR, es). Optional; defaults to 'en'.
• LOG_LEVEL — pino log level. Optional; defaults to 'info'.

This server takes extra arguments — see its repository.