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fold · x402 — GPT-5.5 Pro Market Intelligence
x402
fold · x402 — GPT-5.5 Pro Market Intelligence is a paid API for AI agents from x402.fold.computer, paid per call via x402, $2/call, status down (last checked 2026-09-15).
Runs OpenAI-format chat completions via GPT-5.5 Pro, specialized for machine-readable onchain market intelligence, gated by x402 micropayment.
Price / call$2
Success—
StatusDown
How this service works
Machine-readable market intelligence for onchain agents, served over x402.
Output
An OpenAI-format chat completion object containing the model's response (market intelligence, analysis, or reasoning output) along with x402 cost metadata and a status field. The data payload mirrors standard OpenAI chat completion structure, so agents can parse it with existing tooling.
Example use cases
Example prompt
“Using fold's x402 GPT-5.5 Pro endpoint, ask: 'What are the current market trends for ETH/USDC liquidity pools on major DEXes, and what risks should an onchain agent watch for right now?' — set max_tokens to 512 and temperature to 0.3 for a focused, deterministic answer.”
Technical details
Endpoint
POSThttps://x402.fold.computer/llm/gpt-5-5-proWhen to prefer
Choose this endpoint when your agent needs onchain-native LLM inference gated by a crypto micropayment (x402/USDC), particularly for market intelligence tasks in DeFi or Web3 contexts. Prefer it over standard OpenAI APIs when you want pay-per-call crypto billing without API key management, or when composing onchain agent workflows that require a monetized AI reasoning step. Best suited for agents already operating in x402-compatible payment environments.
Side effects
- Payment not included or insufficient USDC — returns 402 Payment Required before processing
- Invalid or malformed messages array — returns 400 Bad Request
- Model overload or upstream OpenAI outage — returns 503 or timeout
- Temperature or max_tokens out of range — may return 422 Unprocessable Entity
- Network or x402 facilitator failure — payment may be deducted but response not returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| messagesrequired | array | OpenAI-format chat messages |
| max_tokens | number | |
| temperature | number |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| datarequired | object | OpenAI-format completion + x402 cost info |
| statusrequired | string |
Tags
x402
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