Umls MCP Server

by pipeworx-io Your server? Claim it

answering

Umls is answering right now. Last checked 3 min ago. Last commit 17 Sep 2026.

UMLS MCP — wraps the NLM UMLS Terminology Services REST API (uts-ws.nlm.nih.gov/rest)

Uptime history 42 hours of history

42 hours agonow

100.0%

Uptime 24h

92 of 92 checks

—

Tools

hidden behind auth

199 ms

Response time

average over 24h

Stars

last commit 17 Sep 2026

Nothing serious here today

Today is the operative word: we check Umls every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add umls --transport http https://gateway.pipeworx.io/umls/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "umls": {
      "url": "https://gateway.pipeworx.io/umls/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.umls]
url = "https://gateway.pipeworx.io/umls/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "umls": {
      "url": "https://gateway.pipeworx.io/umls/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "umls": {
      "url": "https://gateway.pipeworx.io/umls/mcp"
    }
  }
}

Endpoints

URL	Transport	State	Latency	Checked
https://gateway.pipeworx.io/umls/mcp	streamable-http	answering	103 ms	3 min ago

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Umls — questions

Answers built from our own checks of this server.

Is Umls working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 199 ms. The bar chart above shows every period we have measured.

How do I connect Umls?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Umls need an API key?

No. Umls completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. This is what we observed, not what the docs claim.

How fast is Umls?

It answers our handshake in 199 ms on average, which is faster than 66% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Umls open source?

Yes — it is published under the MIT licence, written in TypeScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.