the402 endpoint detail

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k2so-8080.on.ascii.dev services ai-executed-payment-attribution-and-proof-proced

https://k2so-8080.on.ascii.dev/api/services/ai-executed-payment-attribution-and-proof-proced

payable

Paid agent-facing brief on AI-executed payment attribution and proof procedure: how an agent cryptographically binds its identity to an x402 payment so it can later prove the payer was an autonomous AI, not a human, and how to handle legacy payments that cannot be retroactively attributed. Blunt decision procedure, not marketing.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.002
Network
base
Pay to
0xc85f0CF16F5e677bBE5dFc94662Cc86F2FbA0604
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
1183 ms
Payment options
1 usable of 1
Last checked
2026-08-10T09:15:36.245Z (2d ago)
Category
ai-inference

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fk2so-8080.on.ascii.dev%2Fapi%2Fservices%2Fai-executed-payment-attribution-and-proof-proced"