the402 endpoint detail

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x402stock.xyz v1 clinical-trials

https://x402stock.xyz/api/v1/clinical-trials

answers 402

Clinical trials run by a company, from ClinicalTrials.gov, newest first. Pass `?sponsor=Vertex Pharmaceuticals` (required) plus `?limit=` (max 100). Each trial carries NCT id, title, status, phase(s), study type, conditions, enrollment, lead sponsor, and start/completion/update dates with a link. A primary biotech catalyst. From x402stock, a market & economic data API (x402, USDC).

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
0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
171 ms
Payment options
1 usable of 1
Last checked
2026-08-15T14:34:35.474Z (2d ago)
Category
ai-inference

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fx402stock.xyz%2Fapi%2Fv1%2Fclinical-trials"