{"uid":"cap_07aAQSX96v3Sw3edhVKDy","slug":"fold-x402-claude-opus-4-8-llm-via-x402-4a8f6f5e","name":"fold · x402 — Claude Opus 4.8 LLM via x402","description":"Machine-readable market intelligence for onchain agents, served over x402.","url":"https://x402.fold.computer/llm/claude-opus-4-8","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_F4QVDv0G6IH1ZIIjdJfv8","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":"Serves Claude Opus 4.8 completions with market intelligence context for onchain agents, paid per-call via x402 micropayment protocol","exampleAgentPrompt":"Ask Claude Opus 4.8 through fold.computer's x402 endpoint: 'What are the current trends in onchain DEX liquidity?' — pay with USDC per call and get a structured completion back including cost info.","exampleUseCases":null,"resultDescription":"Returns an OpenAI-format chat completion object containing the model's response text, plus x402 payment metadata showing the cost of the call, all wrapped in a status/data envelope.","failureModes":["Payment failure — insufficient USDC balance or invalid x402 payment header returns 402 Payment Required","Missing messages array — required field omitted returns validation error","Token limit exceeded — max_tokens set beyond model context window","Rate limiting — too many concurrent calls may be throttled","Model unavailability — Claude Opus 4.8 service disruption returns 5xx error"],"whenToPreferThis":"Choose this endpoint when your onchain agent needs to pay for LLM inference using USDC micropayments via the x402 protocol without pre-purchasing API credits, and specifically wants Claude Opus 4.8 quality reasoning. Ideal for autonomous agents that must account for per-inference costs transparently on-chain.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T14:26:03.126Z","isFirstParty":false}