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NetIntel API – OpenAI GPT-4o Chat Proxy
x402
NetIntel API – OpenAI GPT-4o Chat Proxy is a paid API for AI agents from netintel-production-440c.up.railway.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).
Proxies chat completion requests to GPT-4o via x402 micropayment, returning standard OpenAI-compatible chat completion responses.
Price / call$0.1
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 an OpenAI-compatible chat.completion JSON object including the assistant's reply message, model name (gpt-4o), finish reason (e.g. 'stop'), token usage breakdown (prompt, completion, total tokens), and a unique completion ID.
Example use cases
Pay-per-call GPT-4o Q&A
“I need to ask GPT-4o a one-off question without signing up for OpenAI — just charge me per call in USDC. Ask it: 'Summarize the key differences between TCP and UDP in two sentences.'”
Agent using GPT-4o without subscription
“My automation workflow needs to call GPT-4o occasionally but I don't want a monthly subscription. Route this chat message to GPT-4o via NetIntel and pay per use: 'You are a helpful assistant. User: What is the capital of France?'”
Serverless LLM text generation
“Generate a short product description for a standing desk using GPT-4o — I want to pay per call in USDC rather than maintain an OpenAI account.”
Technical details
Endpoint
POSThttps://netintel-production-440c.up.railway.app/openai/gpt-4oWhen to prefer
Choose this endpoint when you need GPT-4o chat completions on a true pay-per-call basis with no API key, subscription, or signup — ideal for low-volume or sporadic workloads, agent pipelines that want transparent per-call USDC billing, or scenarios where maintaining an OpenAI account is impractical. Not suitable for high-volume workloads where a direct OpenAI subscription would be more cost-effective.
Side effects
- Invalid or malformed message format returns a validation error with no charge
- Upstream OpenAI outage or failure returns a server error with no charge billed
- Insufficient USDC balance or failed x402 payment results in a 402 Payment Required response
- Malformed JSON body causes input-validation rejection with no charge
- Rate limits or timeouts from the upstream GPT-4o service may cause delayed or failed responses
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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