the402 endpoint detail

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api.andromalius.io audit challenge

https://api.andromalius.io/v1/audit/challenge

payable

Audit an x402 v2 payment challenge. Use when: Before signing a new or changed x402 payment requirement. Preview: https://api.andromalius.io/examples/challenge-audit. Buy: https://andromalius.io/buy. Safe client: https://andromalius.io/integrate/safe-client. Workflow: https://andromalius.io/workflows/agent-prepayment-policy. No arbitrary fetching or input retention. US business users 18+ only. Term

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
0x2ff7D9d400b27659F67EFd9E43D779D2bE5053c3
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
156 ms
Payment options
1 usable of 1
Last checked
2026-08-10T09:10:11.108Z (1d ago)
Category
web-scraping

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.andromalius.io%2Fv1%2Faudit%2Fchallenge"