the402 endpoint detail

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x402-agent-pay.com barter offer

https://x402-agent-pay.com/x402/barter/offer

answers 402

x402 Barter — open a cashless trade. Pay only the flat call fee; your good is escrowed, not sold for USDC.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.02
Network
base
Pay to
0x367F1b3D8Ca90D1e087481a9A40d585Bf3451a03
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
123 ms
Payment options
2 usable of 2
Last checked
2026-09-06T01:22:51.322Z (33d ago)
Category
other

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fx402-agent-pay.com%2Fx402%2Fbarter%2Foffer"