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netintel.dev openai gpt-4o
https://netintel.dev/openai/gpt-4o
answers 402
Call OpenAI's gpt-4o via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.10 per request in USDC. Standard OpenAI chat.completions request/response shape, capped input and output. Search terms: OpenAI, gpt-4o, chat completion, LLM, no API key.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.10
- Network
- base
- Pay to
- 0xdaDc335482AD545296Fd7b28518A251fFCbEb9Df
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 98 ms
- Payment options
- 2 usable of 2
- Last checked
- 2026-08-15T14:27:22.981Z (5d ago)
- Category
- search
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fnetintel.dev%2Fopenai%2Fgpt-4o"