agent402.tools metered responses

https://agent402.tools/v1/metered/responses

answers 402

OpenAI Responses API billed per request from what the call costs: the 402 quotes exact-BPE input (instructions + input items + tools) plus your max_output_tokens at the model's list price, times 1.15, never under $0.001; an upto (Permit2) or credits buyer settles actual usage under that quote. Point the OpenAI SDK's responses.create(), the OpenAI Agents SDK, or OpenAI Codex CLI's model_providers b

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.

Price: $0.001
Network: base
Pay to: 0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0
Spec dialect: v2 (declares x402Version 2)
Transport: PAYMENT-REQUIRED header
HTTP method: POST
Response latency: 126 ms
Payment options: 13 usable of 13
Last checked: 2026-09-06T01:15:13.103Z (2h ago)
Category: finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fagent402.tools%2Fv1%2Fmetered%2Fresponses"