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X402 Hub GPT-5 Query Endpoint
x402
X402 Hub GPT-5 Query Endpoint is a paid API for AI agents from x402-hub.vercel.app, paid per call via x402, $0.15/call, status unknown (last checked 2026-10-12).
Sends a natural language query to a GPT-5-powered API endpoint protected by x402 micropayments on Base, returning AI-generated responses
Price / call$0.15
Success—
StatusUnknown
How this service works
63 paid API endpoints protected by x402 micropayments on Base
Output
Returns a JSON object with a 'data' field containing the GPT-5 generated response to the submitted query string, reflecting the model's output for the given natural language prompt.
Example use cases
AI-powered research question answering
“Use the X402 Hub GPT-5 endpoint to answer this question for me: 'What are the key differences between transformer and diffusion models in generative AI?' I'm okay paying $0.15 per call.”
On-demand content drafting via crypto
“I want to draft a short product description for my new SaaS tool using GPT-5 through the X402 Hub — the query is 'Write a 100-word product description for a B2B project management app targeting remote engineering teams.'”
Agent pipeline AI reasoning step
“In my automation pipeline, call the X402 Hub GPT-5 API with the query 'Summarize the following meeting transcript and extract three action items' and return the structured result.”
Technical details
Endpoint
POSThttps://x402-hub.vercel.app/api/gpt5?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need GPT-5 level AI inference on a per-call pay-as-you-go basis using USDC micropayments on Base, without committing to a subscription. Ideal for AI agents that need occasional high-quality text generation billed transparently on-chain, or for developers building decentralized apps that require AI capabilities with crypto-native billing.
Side effects
- Insufficient USDC balance causes 402 Payment Required response
- Malformed or missing 'query' field returns 400 Bad Request
- Upstream GPT-5 service unavailable causes 502 or 503 error
- x402 payment verification failure on Base network causes payment rejection
- Query too long or violates content policy causes refusal or truncation
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| queryrequired | string | Query parameter for the API |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| data | object | Response data from upstream API |
Tags
x402
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