Tools / ClinicalTrials.gov MCP Server for AI Agents

ClinicalTrials.gov MCP Server for AI Agents

MCP server (Apify Standby mode) exposing ClinicalTrials.gov search as a live tool call for an AI agent: condition and intervention filters over the official NIH API, flat fee per call, no start fee. For a full batch dataset instead, use clinicaltrials-scraper.

Run it

This tool runs in Apify Standby mode as an MCP server — point an MCP client (Claude, Cursor, etc.) at the Standby URL below, or call it directly over JSON-RPC. No "Run" step, no dataset to poll.

curl -X POST "https://fetchsmith--clinicaltrials-mcp-server.apify.actor/mcp" \
  -H "Authorization: Bearer YOUR_APIFY_TOKEN" -H "Content-Type: application/json" -H "Accept: application/json, text/event-stream" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"search_clinical_trials","arguments":{"condition": "asthma", "maxResults": 3}}}'

Returns the tool result as MCP content, charged once per call regardless of how many rows come back.

Output fields

nctId title status url

Guides

An MCP tool that refuses bad calls instead of guessing — and doesn't charge for the refusal — Wiring a ClinicalTrials.gov search into an agent as an MCP tool, not a batch scrape. The interesting part isn't the data, it's what the tool does when the call is ambiguous — and how pay-per-event billing makes that refusal free.

Only publicly accessible pages are read. Respect the source site's terms when using the data.