the402 endpoint detail

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agent402.tools api llm-premium

https://agent402.tools/api/llm-premium

payable

LLM inference proxy (Premium tier) - o3 or o3-mini reasoning models. Supports vision (up to 2 image URLs) and structured output (response_format: json_object or json_schema). No API key needed; pay per call via x402. Input capped at 32k chars, out...

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.50
Network
base
Pay to
0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
99 ms
Payment options
12 usable of 12
Last checked
2026-08-10T09:13:36.493Z (1d ago)
Category
ai-inference

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