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NetIntel OpenAI GPT-5.1 Chat Completions (via x402)
x402
NetIntel OpenAI GPT-5.1 Chat Completions (via x402) is a paid API for AI agents from netintel-production-440c.up.railway.app, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-14).
Provides access to OpenAI's GPT-5.1 model via a pay-per-call x402 micropayment chat completions endpoint, returning standard OpenAI-format chat completion responses.
Price / call$0.15
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 including: a unique completion ID, the model name ('gpt-5.1'), a choices array with the assistant's reply message and finish_reason, token usage breakdown (prompt_tokens, completion_tokens, total_tokens), and a Unix timestamp. The response is structurally identical to the OpenAI API chat completions format.
Example use cases
Keyless GPT-5.1 for autonomous agent
“My agent needs to call GPT-5.1 for reasoning steps but I don't want to manage API keys — use NetIntel's pay-per-call GPT-5.1 endpoint with system prompt 'You are a concise reasoning engine' and user message 'What are the top three causes of supply chain disruptions?' and give me the answer.”
One-off creative text generation
“Without signing up for anything, run this through GPT-5.1: system prompt is 'You are a creative copywriter', user message is 'Write a punchy 2-sentence tagline for a sustainable sneaker brand called GreenStride', max 100 tokens — what does it come back with?”
Automated customer support draft
“I'm building a support bot and need to test GPT-5.1's response quality — send it a system prompt saying 'You are a polite customer support agent for a SaaS product' and a user message 'How do I reset my password?' using the NetIntel x402 endpoint and show me the reply.”
Technical details
Endpoint
POSThttps://netintel-production-440c.up.railway.app/openai/gpt-5-1When to prefer
Choose this endpoint when you need access to OpenAI's GPT-5.1 model without managing API keys or subscriptions, especially in agent workflows requiring pay-per-call USDC billing via x402 on Base or Solana. Ideal for low-volume or sporadic inference needs where per-call economics are preferable to a monthly plan, or for agents operating in crypto-native environments. Note that at $0.15/call this may be more expensive than direct OpenAI API access for high-volume use.
Side effects
- Input validation rejection (missing required messages field) — no charge applied
- Total input characters exceed ~96,000 char cap — request rejected
- max_completion_tokens exceeds 4096 — capped or rejected
- Upstream OpenAI service failure — no charge applied per NetIntel policy
- x402 payment failure or insufficient USDC balance — request not processed
- Invalid role value in messages array (must be system, user, or assistant)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"id": "chatcmpl-abc123",
"model": "gpt-5.1",
"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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