{"uid":"cap_HHL0rRXiMQX25Wv6mSwax","slug":"momoai-search-pay-per-call-llm-query-api-dee35144","name":"momoAI Search — Pay-per-call LLM Query API","description":"Pay-per-use LLM API. Chat, reasoning, code review, translation, summarization, data extraction, and more. Pay with USDC on Base.","url":"https://aimomo.vercel.app/api/search","method":"POST","headers":{},"bodySchema":{"type":"object","required":["query"],"properties":{"query":{"type":"string","description":"Search query"}}},"responseSchema":{"type":"object","properties":{"data":{"type":"object","properties":{"model":{"type":"string"},"query":{"type":"string"},"usage":{"type":"object"},"answer":{"type":"string"}}},"meta":{"type":"object"},"success":{"type":"boolean"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_GRghnOYAjYlWyoceotkZ9","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Accepts a natural language search query and returns an AI-generated answer, paying $0.02 USDC per call on Base via x402.","exampleAgentPrompt":"Search momoAI for 'what are the main differences between Proof of Work and Proof of Stake blockchains' and give me the answer — I'm okay paying the $0.02 USDC per-call fee.","exampleUseCases":null,"resultDescription":"Returns a JSON object with a 'data' field containing the model used, the original query echoed back, token usage statistics, and a natural language answer string, plus a 'success' boolean and metadata object.","failureModes":["Payment not included or rejected — returns 402 Payment Required","Missing required 'query' field — returns 400 Bad Request","Query too long or malformed — model may return empty or truncated answer","Insufficient USDC balance — payment fails before request is processed","Service unavailable on Vercel — returns 500 or 503"],"whenToPreferThis":"Choose this endpoint when you need a one-off AI-generated answer without a subscription, want to pay per query in USDC on Base via x402, or are building a crypto-native agent pipeline that requires micropayment-gated LLM access. Prefer alternatives (OpenAI, Anthropic direct APIs) if you need fine-grained model selection, system prompts, multi-turn conversation, or high-volume queries where per-call pricing is expensive.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:36:50.476Z","isFirstParty":false}