Clinical Trials Directory
Every clinical trial registered with ClinicalTrials.gov, indexed by condition and sponsor
- Authentication
- No auth
- HTTPS
- Yes
- CORS
- Yes
- Category
- Health
- Documentation / URL
- https://trials.starfile.org/api
Overview
Clinical Trials Directory was a free API for searching clinical trials (built on open trial data).
⚠️ Status (verified 2026-08): the documented endpoint (
trials.starfile.org/api/v1/trials) returns HTTP 404 “404 page not found” — the service appears to be discontinued or restructured. Verify from your network before relying on it.
What it used to provide
curl "https://trials.starfile.org/api/v1/trials?count=1"Alternatives
- ClinicalTrials.gov — the official US trials registry with a v2 API (api.clinicaltrials.gov).
FAQ
Is Clinical Trials Directory working? Our 2026-08 test got 404 on the API path — treat it as discontinued.
Was it free? Yes — free and keyless.
What replaced it? ClinicalTrials.gov’s official API.
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