the402 endpoint detail

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agentdata-api.sander-van-aard.workers.dev x402 preflight

https://agentdata-api.sander-van-aard.workers.dev/x402/preflight

needs params

Preflight before paying an x402 service: is it working right now, and did it work the past 30 days? One live probe of the exact resource URL you intend to pay (status, latency, x402 validity, the payTo/price the service itself publishes in its 402, manifest presence) plus our own monitoring history of the host (30-day uptime, last check, recent changes such as payTo or price drift). Optionally ver

Bazaar lists this endpoint, but when we called it we got HTTP 400 instead of a payment challenge.
Price
10000 atomic
Network
not established
Pay to
-
Spec dialect
-
Transport
-
HTTP method
POST
Response latency
8 ms
Payment options
0 usable of 0
Last checked
2026-08-15T14:31:01.062Z (8d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fagentdata-api.sander-van-aard.workers.dev%2Fx402%2Fpreflight"