{"uid":"cap_wPaeILWbuXc8dqaN9alwq","slug":"gedx402-uform-gen2-qwen-image-captioning-87f70b2c","name":"GEDX402 UForm-Gen2-Qwen Image Captioning","description":"x402 workers ai. pay with usdc on base, polygon, arbitrum, world, or solana. no api keys.","url":"https://ged-x402-media.jvalamis.workers.dev/v1/caption/uform-gen2-qwen-500m","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"image":{"type":"string"},"prompt":{"type":"string"},"max_tokens":{"type":"integer"}}},"responseSchema":{"type":"json","example":{"description":"A sunset over mountains."}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.415","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":"$0.415/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.415","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.415","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_m4BNJwWspwCT5uyNw0zE4","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.415","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Generates a natural-language caption or answer for a given image using the UForm-Gen2-Qwen-500M vision-language model, paid via USDC on-chain with no API key required.","exampleAgentPrompt":"Can you describe what's in this image for me? Here's the base64-encoded photo — use the UForm-Gen2-Qwen-500M model and give me up to 200 tokens in the response.","exampleUseCases":[{"title":"Generate alt text for web accessibility","prompt":"I need to make our product photos accessible. Can you describe what's in each of these images so I can add proper alt text? Use the UForm model and keep each description to a couple of sentences."},{"title":"Analyze social media content at scale","prompt":"We're moderating user-uploaded photos on our marketplace. Can you tell me what's actually shown in these images so we can flag any policy violations? Give me a quick description of each one."},{"title":"Extract details from receipt photos","prompt":"Can you look at this photo of a receipt and tell me what items and amounts you see? Just describe the key details so I can log this transaction properly."}],"resultDescription":"A JSON object with a 'description' field containing a natural-language caption or answer about the image, e.g. {\"description\": \"A sunset over mountains.\"}","failureModes":["Invalid or malformed base64 image data — model returns an error or empty description","Payment failure if wallet lacks sufficient USDC on supported chain — returns HTTP 402","Exceeding max_tokens causes truncated output","Unsupported image format may yield inaccurate or empty captions","Network timeout on large base64 payloads"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, serverless image captioning or visual Q&A solution without managing API keys, and are willing to pay per-call in USDC on-chain (Base, Polygon, Arbitrum, World, or Solana). Ideal for agents that have a crypto wallet and need image understanding on demand without a subscription.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:36:03.582Z","isFirstParty":false}