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ClinicalTrials.gov Trial Sites Search
x402
ClinicalTrials.gov Trial Sites Search is a paid API for AI agents from api.govparse.io, paid per call via x402, $1.25/call, status unknown (last checked 2026-09-14).
Search ClinicalTrials.gov clinical trial sites by facility, city, state, sponsor, phase, status, or start date to build targeted facility lists for trial-site services, patient recruitment, and lab vendors.
Price / call$1.25
Success—
StatusUnknown
How this service works
Where are clinical trials being run, and by whom? Search ClinicalTrials.gov trial SITES by facility name, city, US state, lead sponsor company, trial phase, trial status, or trial start date (since). Returns each facility with its trial's sponsor, phase, status, and start date — a site / facility target list for trial-site services, patient-recruitment, and lab vendors. ClinicalTrials.gov public records.
Output
Returns a list of clinical trial site/facility records, each including the facility name, city, US state, lead sponsor company, trial phase, trial status, and trial start date. Results are paginated via limit/offset and sortable by start date.
Example use cases
Trial site vendor outreach list
“Pull me a list of all RECRUITING Phase 2 and Phase 3 trial sites in California and Texas that started since 2024-01-01 — I need facility names, sponsors, and cities so we can pitch our lab services to them.”
Patient recruitment site targeting
“Which clinical trial sites in Houston or Dallas are actively RECRUITING patients? Show me facilities, their lead sponsors, and trial phases so our patient-recruitment team knows where to focus.”
Competitive sponsor site mapping
“Search ClinicalTrials.gov for all trial sites sponsored by Moderna that are in RECRUITING or ACTIVE status for Phase 3 trials — I want to see where they're running their studies and since when.”
Technical details
Endpoint
GEThttps://api.govparse.io/v1/trials/sites/searchWhen to prefer
Use this endpoint when you need a structured, filterable list of clinical trial sites from ClinicalTrials.gov — specifically when targeting facilities by geography (city/state), sponsor company, trial phase, or recruitment status for commercial outreach, patient recruitment campaigns, or competitive intelligence. Prefer this over raw ClinicalTrials.gov search when you need machine-readable, pre-structured results without scraping.
Side effects
- No matching sites found for the given filters — returns empty result set
- Invalid phase value (not PHASE1/PHASE2/PHASE3/PHASE4) — returns error or empty
- Invalid state code format — returns no results
- Date format not YYYY-MM-DD — may return error or ignore parameter
- Exceeding cap of 100 rows per call — capped or rejected
- Payment failure (x402) — call not executed, 402 response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | object |
Tags
x402
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