{"uid":"cap_hrw5biFQnDEdF1bGhPI7M","slug":"omniapi-ai-caption-generator-1be49574","name":"OmniAPI AI Caption Generator","description":"444 endpoints across 9+ chains. Crypto, AI, Social, Finance, Weather, Tools. Pay per call in USDC via x402 with 4 facilitators: Dexter, Meridian, FluxA, GoPlausible.","url":"https://omni-api-cyan.vercel.app/api/ai/caption","method":"POST","headers":{},"bodySchema":{"type":"object","required":["query"],"properties":{"input":{"type":"string","description":"Input data for the endpoint"},"query":{"type":"string","description":"Search query or input text"},"params":{"type":"object","description":"Additional parameters"}}},"responseSchema":{"type":"object","description":"API response data"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.04612","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":"$0.04612/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.04612","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.04612","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_0XRC8VAGDpe-kowEbf21d","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.04612","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Generates a descriptive text caption for a given input (image URL, text, or query) using AI","exampleAgentPrompt":"Can you generate an AI caption for this image of a sunset over the ocean — something evocative and suitable for an Instagram post?","exampleUseCases":[{"title":"Social media image captioning","prompt":"Write me an engaging AI-generated caption for this product photo I'm posting on Instagram — the query is 'sleek black leather wallet on a marble surface'."},{"title":"Accessibility alt-text generation","prompt":"Generate an AI caption describing this image for accessibility purposes — the input is a photo of a crowded farmers market on a sunny day."},{"title":"Content pipeline auto-labeling","prompt":"I need a short descriptive caption for each image in my batch — start with this one: a golden retriever puppy playing in autumn leaves."}],"resultDescription":"Returns a JSON object containing an AI-generated caption or descriptive text string corresponding to the provided query or input data.","failureModes":["Missing required 'query' field returns a validation error","Vague or ambiguous queries may produce generic or low-quality captions","Payment failure via x402 results in a 402 Payment Required response","Overly long or malformed input may be truncated or rejected","Unsupported input types may return an empty or error response"],"whenToPreferThis":"Choose this endpoint when you need a quick, pay-per-call AI caption generation without committing to a subscription service, especially in multi-chain crypto-native workflows where USDC micropayments via x402 are already in use. It suits agents that need on-demand captioning integrated with other OmniAPI capabilities like social or finance endpoints.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:45:43.244Z","isFirstParty":false}