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x402-filings.datalayer.workers.dev health clinical-trials
https://x402-filings.datalayer.workers.dev/v1/health/clinical-trials
answers 402
Stopped clinical trials with the stop reason classified. ClinicalTrials.gov records why a trial halted as free text; this reads that text and separates safety and efficacy failures from business, recruitment and funding stops, which are the ones people routinely misread as drug failures. Filter by sponsor, condition, intervention and phase, and get the cohort-level breakdown alongside the records.
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.02
- Network
- base
- Pay to
- 0x917e635b83F0dd7e8172c55EC4EEbb28B734cA85
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 11 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-09-06T01:14:43.029Z (33d ago)
- Category
- data
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fx402-filings.datalayer.workers.dev%2Fv1%2Fhealth%2Fclinical-trials"