the402 endpoint detail

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vaaya.ai openrouter chat

https://vaaya.ai/api/run/openrouter/chat

answers 402

OpenRouter — one endpoint for 100+ LLMs, keyless pay-per-call (price varies by model + tokens). Params: `model` (vendor/model id like openai/gpt-4o), `messages`.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$1.00
Network
base
Pay to
0x7c655d3d3944Bd27994dD81A036C3aFB19806C40
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
157 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:14:08.957Z (36d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fvaaya.ai%2Fapi%2Frun%2Fopenrouter%2Fchat"