the402 endpoint detail

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api.veritylayer.dev verify quick

https://api.veritylayer.dev/verify/quick

payable

Fact-check a claim before your agent acts on, repeats, or ships it — verify a claim, is this true, catch hallucinations. Independent, fail-closed verification for AI agents: a verdict with calibrated 0-1 confidence, reasoning, and web-sourced evidence; abstains rather than guess, never fabricates. Every verdict ships a signed, independently re-verifiable receipt — proof of what was asked and answe

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
0x89d38023167bdA453BeD9F6CbF22dDd1EC5f70a7
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
301 ms
Payment options
1 usable of 1
Last checked
2026-08-10T09:09:20.619Z (1d ago)
Category
ai-inference

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.veritylayer.dev%2Fverify%2Fquick"