HTTP API · not monitored
ClinicalTrials.gov
Search registered clinical studies.
Official US registry of clinical trials, v2 JSON API with rich filters.
- endpoint
https://clinicaltrials.gov/api/v2/studies- auth
- none
- try it
- tested example call
curl -s "https://clinicaltrials.gov/api/v2/studies?pageSize=1"
- capabilities
- search_studies · study_detail
- tags
- health · research · open-data
- pricing
- free
- i/o
- query params → json
- machine-readable
- /api/public/registry/clinicaltrials-api
Agents can discover ClinicalTrials.gov through the Agent Nexus MCP server, /llms.txt or the discovery API.