Medical Terminologies MCP Server

by sidneybissoliio.github.SidneyBissoli/medical-terminologies-mcpv2.2.0

Look up medical terminologies: ICD-11, LOINC, RxNorm, MeSH, ATC, Brazil's CID-10 (DataSUS) and optionally SNOMED CT.

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Active2d ago

Install Medical Terminologies MCP server

claude mcp add medical-terminologies -e WHO_CLIENT_SECRET='<who-client-secret>' -- npx -y medical-terminologies-mcp

{
  "mcpServers": {
    "medical-terminologies": {
      "command": "npx",
      "args": [
        "-y",
        "medical-terminologies-mcp"
      ],
      "env": {
        "WHO_CLIENT_SECRET": "<who-client-secret>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "medical-terminologies": {
      "command": "npx",
      "args": [
        "-y",
        "medical-terminologies-mcp"
      ],
      "env": {
        "WHO_CLIENT_SECRET": "<who-client-secret>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "medical-terminologies": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "medical-terminologies-mcp"
      ],
      "env": {
        "WHO_CLIENT_SECRET": "<who-client-secret>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "medical-terminologies": {
      "command": "npx",
      "args": [
        "-y",
        "medical-terminologies-mcp"
      ],
      "env": {
        "WHO_CLIENT_SECRET": "<who-client-secret>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
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	—	yes	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).

Remote endpoints

streamable-httphttps://medical.sidneybissoli.com/mcp

Freshness

Active — last maintenance signal 2d ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-10-08 · 2d ago · GitHub
Latest release
2026-10-08 · 2d ago · GitHub · v2.2.0
Package published
no data · npm/PyPI
Registry entry updated
2026-10-08 · 2d ago · official registry · v2.2.0

FAQ

›How do I install the Medical Terminologies MCP server in Claude Code?

Run: claude mcp add medical-terminologies -e WHO_CLIENT_SECRET='<who-client-secret>' -- npx -y medical-terminologies-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Medical Terminologies require an API key?

Yes. It expects WHO_CLIENT_SECRET, of which 1 is a secret.

›Can I use Medical Terminologies as a remote (hosted) MCP server?

Yes — it offers both a hosted endpoint and a local stdio package.

›Is Medical Terminologies in the official MCP registry?

Yes, as io.github.SidneyBissoli/medical-terminologies-mcp.