Drug Interaction Checker MCP Server

by guptaprakhariitr Your server? Claim it

not responding

Drug Interaction Checker is listed as active in the registry but did not answer our last check. It exposes 3 tools. Last commit 11 Jun 2026.

Drug-drug interaction checker for clinical LLMs using RxNorm and DailyMed.

Uptime history 91 days of history · worst day 0%

91 days agonow

4.3%

Uptime 24h

4 of 92 checks

Tools

read from the server

351 ms

Response time

average over 24h

Stars

last commit 11 Jun 2026

Drug Interaction Checker does not always answer

Over the last week it answered 4.4% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 4 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add drug-interaction-mcp --transport http https://drug-interaction-mcp.atlasword.workers.dev/mcp

Settings → Connectors → Add custom connector, then paste this address

https://drug-interaction-mcp.atlasword.workers.dev/mcp

~/.codex/config.toml

[mcp_servers.drug-interaction-mcp]
url = "https://drug-interaction-mcp.atlasword.workers.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "drug-interaction-mcp": {
      "url": "https://drug-interaction-mcp.atlasword.workers.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "drug-interaction-mcp": {
      "type": "http",
      "url": "https://drug-interaction-mcp.atlasword.workers.dev/mcp"
    }
  }
}

Available tools 3

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

interaction

check_interaction

Check the interaction between two drugs (by brand or generic name). Returns severity (contraindicated / major / moderate / minor / unknown), mechanism (when known), and source citations. Always include the response disclaimer in your final answer.

interactions

check_interactions_multi

Pairwise interaction check across a list of drugs (polypharmacy). Returns one entry per unordered pair (dedupes A-B/B-A). Limit 8 drugs (= 28 pairs).

normalize

normalize_drug_name

Resolve a brand or generic drug name to its canonical RxNorm record: RxCUI, generic name, brand names, synonyms.

Endpoints

URL	Transport	State	Latency	Checked
https://drug-interaction-mcp.atlasword.workers.dev/mcp	streamable-http	answering	210 ms	4 min ago

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Drug Interaction Checker — questions

Answers built from our own checks of this server.

What can Drug Interaction Checker do?

It exposes 3 tools, read directly from the server on our last check. Among them: check_interaction, check_interactions_multi, normalize_drug_name. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Drug Interaction Checker working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 4 of 92 checks got a reply (4.3%), average response time 351 ms. The bar chart above shows every period we have measured.

The registry lists Drug Interaction Checker as active — why does it not respond?

The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.

How do I connect Drug Interaction Checker?

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

Does Drug Interaction Checker need an API key?

No. Drug Interaction Checker completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Drug Interaction Checker?

It answers our handshake in 351 ms on average, which is faster than 39% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Drug Interaction Checker open source?

We cannot say either way: written in TypeScript, 0 stars on GitHub and 1 open issue, but we could not determine the licence, and without one the code is not open source by default.