{"uid":"cap_R312fN-zSlsFsHmsb9XCU","slug":"fold-x402-gpt-5-5-pro-market-intelligence-325fd3ce","name":"fold · x402 — GPT-5.5 Pro Market Intelligence","description":"Machine-readable market intelligence for onchain agents, served over x402.","url":"https://x402.fold.computer/llm/gpt-5-5-pro","method":"POST","headers":{},"bodySchema":{"type":"object","required":["messages"],"properties":{"messages":{"type":"array","description":"OpenAI-format chat messages"},"max_tokens":{"type":"number"},"temperature":{"type":"number"}}},"responseSchema":{"type":"object","required":["status","data"],"properties":{"data":{"type":"object","description":"OpenAI-format completion + x402 cost info"},"status":{"type":"string"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"2","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"down","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$2/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"2","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"2","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Fj6PuCr0MiquoTNJDz53f","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"2","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Runs OpenAI-format chat completions via GPT-5.5 Pro, specialized for machine-readable onchain market intelligence, gated by x402 micropayment.","exampleAgentPrompt":"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.","exampleUseCases":null,"resultDescription":"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.","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:28:06.046Z","isFirstParty":false}