the402 endpoint detail

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agent402.tools api answer

https://agent402.tools/api/answer

answers 402

A synthesized answer to a natural-language question, grounded in a live web search and returned with source citations (URL, snippet). Use it when an agent needs a direct, current answer plus the receipts to verify or follow up, instead of reading several pages itself.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.08
Network
base
Pay to
0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
115 ms
Payment options
13 usable of 13
Last checked
2026-09-06T01:14:29.664Z (19d ago)
Category
search

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fagent402.tools%2Fapi%2Fanswer"