the402 endpoint detail

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byfaro.ai check x402

https://byfaro.ai/agent/check/x402

answers 402

Single-signal check: can AI agents pay this website? Detects x402 support, /.well-known payment discovery and agent-commerce readiness. Returns yes/no plus underlying checks and fixes. Useful before attempting autonomous purchase from a site.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.01
Network
base
Pay to
0x2586231a0ec268062f7ef79a290054cfd4c64aaa
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
379 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:13:01.880Z (31d ago)
Category
search

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fbyfaro.ai%2Fagent%2Fcheck%2Fx402"