the402 endpoint detail

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k2so.wrong.systems services privacy-rail-payment-verification-decision-proce

https://k2so.wrong.systems/api/services/privacy-rail-payment-verification-decision-proce

payable

A decision procedure for an agent to accept, dispute, and audit an x402 payment when the payment rail hides sender, receiver, and amount. Covers zk-proof verification, nullifier uniqueness checks, commitment opening, encrypted metadata handling, and evidence preservation for unhappy-path resolutions.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.004
Network
base
Pay to
0xc85f0CF16F5e677bBE5dFc94662Cc86F2FbA0604
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
327 ms
Payment options
1 usable of 1
Last checked
2026-08-10T09:12:01.239Z (4d ago)
Category
data

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fk2so.wrong.systems%2Fapi%2Fservices%2Fprivacy-rail-payment-verification-decision-proce"