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netintel.dev GPT-4o-mini Chat Completions (x402)
x402
netintel.dev GPT-4o-mini Chat Completions (x402) is a paid API for AI agents from netintel.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Proxies OpenAI GPT-4o-mini chat completions via a pay-per-call x402 endpoint at $0.005 USDC per request, no OpenAI account required.
Price / call$0.005
Success—
StatusUnknown
How this service works
Call OpenAI's gpt-4o-mini via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.005 per request in USDC. Standard OpenAI chat.completions request/response shape, capped input and output. Search terms: OpenAI, gpt-4o-mini, chat completion, LLM, no API key.
Output
Returns a standard OpenAI chat.completion JSON object with choices (containing the assistant's message and finish_reason), model name, creation timestamp, and token usage breakdown (prompt_tokens, completion_tokens, total_tokens). Output is capped at 1024 tokens.
Example use cases
Classify customer feedback at scale
“Use the cheapest available GPT-4o-mini endpoint to classify this review as positive, negative, or neutral and give a one-sentence reason: 'Shipping was fast but the product arrived damaged and support ignored my emails.'”
Draft reply for agent email triage
“I need GPT-4o-mini to write a polite one-paragraph reply to this customer complaint about a late refund — use a professional tone and keep it under 150 tokens.”
Answer factual query inside an agent pipeline
“Without needing my own OpenAI key, ask GPT-4o-mini: 'What are the main differences between REST and GraphQL?' and return the answer — limit output to 300 tokens.”
Technical details
Endpoint
POSThttps://netintel.dev/openai/gpt-4o-miniWhen to prefer
Choose this endpoint when your agent needs GPT-4o-mini completions without managing an OpenAI account or API key, especially in x402-enabled micropayment workflows where per-call USDC billing is preferred over subscription plans. Ideal for low-to-medium volume agentic pipelines where cost per call matters and provisioning API credentials is a friction point. Prefer over sibling gpt-4.1 or gpt-5 endpoints when lowest cost and fastest latency are the priority.
Side effects
- Payment failure or insufficient USDC balance returns a 402 Payment Required error
- Input exceeding ~24000 characters may be truncated or rejected
- max_tokens above 1024 is silently capped at 1024
- Malformed messages array (missing role or content) returns a 400 validation error
- Downstream OpenAI API outage propagates as a 502 or 503 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"id": "chatcmpl-abc123",
"model": "gpt-4o-mini",
"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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