{"uid":"cap_7D-zmn_DZ0dDRIOumqOTg","slug":"momoai-search-pay-per-call-llm-query-endpoint-7f2d09aa","name":"momoAI Search — Pay-per-Call LLM Query Endpoint","description":"Pay-per-use LLM API. Chat, reasoning, code review, translation, summarization, data extraction, and more. Pay with USDC on Base.","url":"https://momoai-cyan.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__HM4U-_d4GydqeBxpJE6x","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, powered by a pay-per-use LLM backend with USDC micropayment on Base.","exampleAgentPrompt":"Search momoAI for: 'What are the main differences between transformer and diffusion model architectures?' and pay the $0.02 per-call fee with USDC on Base.","exampleUseCases":null,"resultDescription":"Returns a JSON object with a 'data' field containing the AI-generated answer string, the model used, the original query, and token usage statistics, plus a 'success' boolean and metadata object.","failureModes":["Payment not received or insufficient USDC balance — 402 Payment Required response","Missing required 'query' field in request body — 400 Bad Request","LLM backend unavailable or timeout — 500 Internal Server Error","Malformed JSON body — 400 Bad Request","Rate limit exceeded — 429 Too Many Requests"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, pay-per-call LLM query without a subscription, especially when operating an autonomous agent that can pay micropayments in USDC on Base via x402. Ideal for sporadic queries where a flat subscription is wasteful, or when integrating AI search into a crypto-native workflow.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:35:27.767Z","isFirstParty":false}