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netintel.dev GPT-4o Chat Completions (x402)
x402
netintel.dev GPT-4o Chat Completions (x402) is a paid API for AI agents from netintel.dev, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).
Proxies OpenAI GPT-4o chat completions via a pay-per-call x402 endpoint — no OpenAI account or API key required, $0.10 USDC per request.
Price / call$0.1
Success—
StatusUnknown
How this service works
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.
Output
Returns a standard OpenAI chat.completions response object containing the assistant's generated message, finish reason, and token usage counts — identical in shape to the OpenAI API response, with capped input and output token limits enforced by the proxy.
Example use cases
On-demand GPT-4o reasoning without API key
“I need you to use GPT-4o to analyze this legal clause and explain the risks in plain English — I don't have an OpenAI account, so use the netintel pay-per-call proxy that charges $0.10 USDC per request.”
Agent pipeline LLM step with crypto billing
“In my automated pipeline, call GPT-4o to classify each incoming support ticket into one of these categories: billing, technical, account, or general — use the x402 pay-per-call endpoint so I don't need to manage an OpenAI API key.”
One-off GPT-4o content generation task
“Use GPT-4o to draft three variations of a product description for my new standing desk, each under 100 words and with a different tone — casual, professional, and playful — and pay $0.10 USDC per call via the x402 proxy.”
Technical details
Endpoint
POSThttps://netintel.dev/openai/gpt-4oWhen to prefer
Choose this endpoint when your agent or pipeline needs GPT-4o capabilities but you cannot or do not want to manage an OpenAI API key or billing account — ideal for pay-per-call usage patterns, agentic workflows billed in USDC via x402, or one-off tasks where provisioning full OpenAI credentials is impractical. Prefer the gpt-4o-mini sibling for cost-sensitive high-volume tasks, or the gpt-4.1 sibling for the latest OpenAI model.
Side effects
- Insufficient USDC balance or failed x402 payment results in 402 Payment Required
- Input exceeds the proxy's capped token limit, returning a 400 error
- OpenAI upstream timeout or unavailability propagates as a 502 or 503
- Malformed messages array (wrong role names, missing content) returns a 400 validation error
- Rate limiting on the proxy tier returns a 429 Too Many Requests
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"id": "chatcmpl-abc123",
"model": "gpt-4o",
"usage": {
"total_tokens": 13,
"prompt_tokens": 11,
"completion_tokens": 2
},
"object": "chat.completion",
"choices": [
{
"index": 0,
"message": {
"role": "assistant",
"content": "Hi!"
},
"finish_reason": "stop"
}
],
"created": 1735689600
}
}Tags
x402
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