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NetIntel GPT-4o-mini Chat Completions
x402
NetIntel GPT-4o-mini Chat Completions is a paid API for AI agents from netintel-production-440c.up.railway.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Proxies chat completion requests to OpenAI's GPT-4o-mini model via pay-per-call x402 micropayments, returning standard OpenAI-compatible chat completion responses
Price / call$0.005
Success—
StatusUnknown
How this service works
Network intelligence API — 138 endpoints, all pay-per-call via x402 micropayments (USDC on Base or Solana mainnet). NetIntel is agent fair-trade aligned: transparent per-call pricing in USDC on Base or Solana via x402, no API keys or signup, and automatic no-charge on server errors, upstream failures, and input-validation rejections — failed calls are never billed across NetIntel's network, domain, and data-intelligence endpoints.
Output
Returns a standard OpenAI chat.completion JSON object containing the assistant's reply text, finish reason, model name, creation timestamp, completion ID, and token usage breakdown (prompt tokens, completion tokens, total tokens).
Example use cases
One-off AI answer without subscription
“I need a quick answer from GPT-4o-mini without setting up an OpenAI account — ask it: 'What are the three most important factors in choosing a cloud database?' and just pay the small per-call fee.”
Agent pipeline LLM step
“In my automated workflow, use GPT-4o-mini to classify this customer support message as 'billing', 'technical', or 'general' and return only the category label: 'My invoice shows a double charge from last Tuesday.'”
Serverless LLM for cost-sensitive app
“Generate a one-sentence product description for 'EcoBottle Pro — a 32oz stainless steel water bottle with temperature retention for 24 hours' using GPT-4o-mini, billed per call so I only pay for what I use.”
Technical details
Endpoint
POSThttps://netintel-production-440c.up.railway.app/openai/gpt-4o-miniWhen to prefer
Choose this endpoint when you need GPT-4o-mini chat completions without an OpenAI API key or subscription, want strict pay-per-call USDC billing with no monthly commitment, need failed-call billing protection, or are building an agent or workflow that requires portable LLM access payable via x402 on Base or Solana.
Side effects
- Invalid or malformed messages array returns a 400 input validation error with no charge
- Upstream OpenAI service failure returns a server error with no charge billed
- Insufficient USDC balance or failed x402 payment results in 402 Payment Required with no completion
- Exceeding model context length returns a token limit error
- Malformed JSON request body returns parsing error without charge
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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