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api.govparse.io sites search
https://api.govparse.io/v1/trials/sites/search
answers 402
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 r
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $1.25
- Network
- base
- Pay to
- 0x3873d15CF3209c32aaA8d9AA542164E658567129
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 92 ms
- Payment options
- 2 usable of 2
- Last checked
- 2026-09-06T01:24:00.894Z (19d ago)
- Category
- search
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.govparse.io%2Fv1%2Ftrials%2Fsites%2Fsearch"