{"uid":"cap_OZQwGnRVXT3TaIFEHLx12","slug":"nexusapi-ai-chat-endpoint-8795542d","name":"NexusAPI AI Chat Endpoint","description":"Crypto, AI, Social Media, Finance, Weather, Tools & more. Pay per call in USDC on Base. No API keys.","url":"https://nexus-api-virid.vercel.app/api/ai/chat","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"query":{"type":"string","description":"Search query or input parameter"}}},"responseSchema":{"type":"object","description":"API response data"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.073275","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":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.073275/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.073275","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.073275","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_iq-Gem41LRERr016vJkoO","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.073275","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Sends a natural language query to an AI chat model and returns a generated text response, payable per call in USDC on Base.","exampleAgentPrompt":"Ask the AI chat endpoint: 'What are the key differences between proof-of-work and proof-of-stake blockchains?' and give me the full response.","exampleUseCases":[{"title":"Quick AI answer without API key","prompt":"I don't have an OpenAI key handy — can you use the NexusAPI chat endpoint to ask: 'Summarize the main causes of inflation in three bullet points' and show me the answer?"},{"title":"On-demand crypto knowledge query","prompt":"Use the pay-per-call AI chat to ask: 'Explain how Ethereum smart contracts work in simple terms' — I'll pay in USDC on Base."},{"title":"AI-assisted content drafting","prompt":"Send this to the NexusAPI AI chat: 'Write a two-sentence product description for a wireless noise-cancelling headphone aimed at remote workers' and return whatever it generates."}],"resultDescription":"A JSON object containing an AI-generated text reply to the submitted query, produced by the underlying language model powering the NexusAPI chat endpoint.","failureModes":["Payment not received or insufficient USDC — returns 402 Payment Required","Empty or missing query field — may return an error or empty response","Model timeout or upstream LLM failure — returns 5xx server error","Malformed JSON body — returns 400 Bad Request","Rate limiting or capacity issues on the NexusAPI platform"],"whenToPreferThis":"Choose this endpoint when you need a quick, keyless AI chat response and are willing to pay micro-amounts in USDC on Base per call, especially in agentic or automated pipelines where managing API keys is impractical and crypto-native micropayments are acceptable.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:41:56.805Z","isFirstParty":false}