TrialBase DB: Search clinical trials
Pay-per-call endpoint from TrialBase DB. Price per call: $0.100 (USDC, x402).
Proof
endpoint (shown as text, not a link, to avoid accidental calls):
https://api.trialbase-db.org/v1/trials“HTTP 402 + x402 v2 challenge: amount 100000 atomic units of USD Coin (= $0.1)”
source: api.trialbase-db.org/v1/trials
Details
- Price per call
- $0.100 (USDC, x402)
- Provider
- TrialBase DB
- Protocol
- x402 · USDC (Base)
- Method
- GET
- Price basis
- USDC amount in the unpaid HTTP 402 payment challenge (first accepted option)
- Last probed
- 2026-10-17
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