https://netintel.dev/openai/gpt-4o
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 shape. EVERY call is bounded by a 16000-token combined input budget (real tokenizer) plus the 48000-char cap; output 2048. Vision: up to 4 https image_url parts (detail low/high/auto). Search terms: OpenAI, gpt-4o, vision, image input, chat completion, LLM, no API key.
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GET https://netintel.dev/openai/gpt-4o → HTTP/1.1 402 Payment Required X-Payment-Required: $0.1000 X-Payment-Currency: USDC X-Payment-Chain: base GET https://netintel.dev/openai/gpt-4o X-Payment: <signed-receipt> → HTTP/1.1 200 OK Content-Type: application/json …response body…