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fittings.sh ctgov eligibility-screen
https://fittings.sh/v1/ctgov/eligibility-screen
answers 402
Screens open ClinicalTrials.gov studies for a condition against a patient age, sex and healthy-volunteer status, returning the trials the structured criteria do not exclude with their inclusion and exclusion criteria split out.
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.01
- Network
- base
- Pay to
- 0xe025442C0d6dC17aD2b9eB888B3565bdFCd98638
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 165 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-15T14:38:34.582Z (2d ago)
- Category
- other
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Ffittings.sh%2Fv1%2Fctgov%2Feligibility-screen"