{"uid":"cap_VIbyNxa1gCmwbLUT2AGYR","slug":"messari-77766ac8","name":"Messari AI Chat Completion","description":"MessariAI chat completion","url":"https://api.messari.io/ai/v2/chat/completions","method":"POST","headers":{},"bodySchema":{"type":"object","required":["messages"],"properties":{"stream":{"type":"boolean"},"messages":{"type":"array","items":{"type":"object","required":["role","content"],"properties":{"role":{"enum":["user","assistant"],"type":"string"},"content":{"type":"string"}}}},"verbosity":{"enum":["succinct","normal","verbose"],"type":"string"},"disable_tables":{"type":"boolean"},"response_format":{"enum":["markdown","text"],"type":"string"},"inline_citations":{"type":"boolean"}}},"responseSchema":{"example":{"data":{"messages":[{"role":"assistant","content":"Bitcoin recently surpassed $100,000 for the first time..."}]}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.25","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.25/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.25","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.25","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_pbXQhJ6c7VXvyAeT7N5By","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.25","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Answers natural language questions about cryptocurrency and crypto markets using Messari's AI, returning formatted responses with configurable verbosity.","exampleAgentPrompt":"Ask Messari's AI to explain what Ethereum's proof-of-stake transition means for validators, and give me a normal-length markdown-formatted answer.","exampleUseCases":null,"resultDescription":"An AI-generated response in markdown format answering the user's crypto-related question, drawing on Messari's crypto intelligence data. The response reflects the requested verbosity level (e.g. 'normal') and is structured for readability.","failureModes":["Payment Required (402) if x402 payment header is missing or insufficient — endpoint requires 250000 units USDC ($0.25) per call","Invalid message format if messages array is malformed or missing required role/content fields","Timeout if maxTimeoutSeconds (60s) is exceeded","Unsupported response_format value returns error","Empty or null messages array results in bad request"],"whenToPreferThis":"Use this endpoint when you need conversational, AI-generated answers about cryptocurrency topics backed by Messari's proprietary research data. Prefer this over generic LLMs when the question requires up-to-date crypto intelligence, asset data, funding information, or Messari-specific research context. Best for open-ended questions that benefit from narrative explanation rather than structured data lookups.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:43:24.688Z","isFirstParty":false}