{"id":"c4d64b00-51ee-4f64-8956-36cdeb326b5f","shortId":"zSyTSE","kind":"mpp","title":"Seedance Fast image-to-video generation via micropayments — $0.04–$0.12 per clip, ~40s turnaround.","tagline":"Seedance Fast image-to-video generation via micropayments — $0.04–$0.12 per clip, ~40s turnaround.","description":"This endpoint animates a static image into a video clip using the Seedance Fast model, accessed through StableStudio's pay-per-generation API. It accepts a source image URL (uploaded via StableStudio's blob upload flow), a text prompt describing the desired motion, and optional parameters for duration (4–12 seconds), resolution (480p/720p/1080p), aspect ratio, audio generation, camera lock, and seed. An optional `last_image` field enables interpolation between two frames.\n\nPayment is handled via the MPP protocol (Tempo method, intent=charge) or x402, settling in USDC on Base (EIP-155:8453). The dynamic price ranges from $0.04 to $0.12 depending on resolution and duration. No API keys are required — authentication and payment happen inline via cryptographic headers. After payment, the endpoint returns a job ID; you poll `/api/jobs/{jobId}` with a SIGN-IN-WITH-X wallet signature until the video is ready (typically ~40 seconds).\n\nSeedance Fast shares the same schema as the full Seedance model but runs at significantly lower cost and faster speed. Images must first be uploaded through StableStudio's three-step upload flow ($0.01) to obtain a blob URL. The endpoint is POST-only and returns 405 on HEAD/GET, which is expected behavior.","tags":["image","video","generation","nano-banana","gpt-image","grok","flux","sora","veo","seedance","wan"],"capabilities":["image-to-video","video-generation","seedance-fast","micropayment-api","usdc-on-base","tempo-settlement","configurable-duration","configurable-resolution","audio-generation","frame-interpolation","no-api-key"],"categories":["video","vision"],"synonyms":["i2v","image to video","animate image","seedance fast","video from image","img2vid","image animation","StableStudio video"],"warnings":["Probe returned 405 because HEAD/GET were used on a POST-only endpoint; endpoint is likely live but no 402 challenge was directly captured","Images must be uploaded via a separate paid upload flow ($0.01) before use in this endpoint","Requires a crypto wallet with USDC on Base or Tempo L2 for payment"],"endpointUrl":"https://stablestudio.dev/api/generate/seedance-fast/i2v","protocol":"mpp","transport":"http","auth":{"type":"mpp","details":{"realm":"stablestudio.dev","intent":"charge","method":"tempo","service_methods":{"tempo":{"assets":["0x20c000000000000000000000b9537d11c60e8b50"],"intents":["charge"]}}}},"qualityScore":"0.850","qualityRationale":"Full OpenAPI schema with detailed input/output definitions, clear pricing, documented payment flow, and agents.txt confirmation. The probe returned 405 (expected for POST-only endpoint probed with HEAD/GET), and the OpenAPI spec confirms the endpoint exists. Slight deduction because no live 402 challenge was captured for this specific 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'micropayment-api' 'model':45,189 'motion':74 'mpp':108 'must':200 'no-api-key' 'obtain':214 'option':76,94 'paramet':77 'pay':51 'pay-per-gener':50 'payment':103,144,151 'per':12,27,52 'poll':159 'post':222 'post-on':221 'price':126 'prompt':70 'protocol':109 'rang':127 'ratio':86 'readi':175 'requir':141 'resolut':83,134 'return':154,225 'run':191 'schema':184 'second':82,178 'seed':92 'seedanc':1,16,43,179,188 'seedance fast' 'seedance-fast' 'settl':116 'share':181 'sign':165 'sign-in-with-x':164 'signatur':170 'signific':193 'sourc':58 'speed':198 'stablestudio':48,63,205 'static':35 'step':209 'tempo':110 'tempo-settlement' 'text':69 'three':208 'three-step':207 'turnaround':15,30 'two':101 'typic':176 'upload':61,66,203,210 'url':60,217 'usdc':118 'usdc-on-base' 'use':41 'via':8,23,62,106,147 'video':6,21,39,173 'video from image' 'video-generation' 'wallet':169 'x':168 'x402':115","prices":[{"id":"eddd87ac-53a2-43f1-b25c-0475ded8f80a","listingId":"c4d64b00-51ee-4f64-8956-36cdeb326b5f","amountUsd":null,"unit":"per_call","nativeCurrency":"pathUSD","nativeAmount":null,"chain":"tempo","payTo":null,"paymentMethod":"mpp-tempo","isPrimary":true,"details":{"realm":"stablestudio.dev","intent":"charge","method":"tempo","dynamic":true,"decimals":6,"unit_type":null,"amount_hint":null,"raw_payment":{"intent":"charge","method":"tempo","dynamic":true,"currency":"0x20c000000000000000000000b9537d11c60e8b50","decimals":6,"description":"Seedance Fast image-to-video"},"asset_contract":"0x20c000000000000000000000b9537d11c60e8b50"},"createdAt":"2026-04-18T20:00:08.356Z"}],"sources":[{"listingId":"c4d64b00-51ee-4f64-8956-36cdeb326b5f","source":"mpp_dev","sourceId":"stablestudio:POST:/api/generate/seedance-fast/i2v","sourceUrl":"https://mpp.dev/api/services","isPrimary":true,"firstSeenAt":"2026-04-18T20:00:08.356Z","lastSeenAt":"2026-04-22T02:45:08.262Z"}],"details":{"listingId":"c4d64b00-51ee-4f64-8956-36cdeb326b5f","quickStartSnippet":"# 1. POST without payment to get 402 challenge\ncurl -X POST https://stablestudio.dev/api/generate/seedance-fast/i2v \\\n  -H 'Content-Type: application/json' \\\n  -d '{\"prompt\":\"A cat slowly turning its head\",\"image\":\"https://your-blob-url.vercel-storage.com/cat.png\",\"duration\":\"5\",\"resolution\":\"720p\"}'\n# Returns 402 with PAYMENT-REQUIRED header — decode, sign USDC auth, resend with PAYMENT-SIGNATURE header","exampleRequest":{"image":"https://example.blob.vercel-storage.com/uploads/abc/cat.png","prompt":"A cat slowly turning its head and blinking","duration":"5","resolution":"720p","aspect_ratio":"16:9","camera_fixed":true,"generate_audio":false},"exampleResponse":{"type":"seedance-fast-i2v","jobId":"job_abc123def456","status":"pending","success":true},"schema":{"path":"/api/generate/seedance-fast/i2v","method":"POST","payment":{"intent":"charge","method":"tempo","dynamic":true,"currency":"0x20c000000000000000000000b9537d11c60e8b50","decimals":6,"description":"Seedance Fast image-to-video"},"description":"Seedance Fast image-to-video"},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Seedance Fast i2v costs $0.04–$0.12 and takes ~40s","source_url":"https://stablestudio.dev"},{"claim":"Payment settles in USDC on Base (eip155:8453) via Tempo method with intent=charge","source_url":"https://stablestudio.dev"},{"claim":"Seedance Fast i2v accepts prompt, image, last_image, duration 4-12s, resolution 480p/720p/1080p, aspect_ratio, generate_audio, camera_fixed, seed","source_url":"https://stablestudio.dev"},{"claim":"File upload requires three-step flow costing $0.01","source_url":"https://stablestudio.dev"},{"claim":"StableStudio described as AI image/video generation with micropayments, USDC on Base","source_url":"https://stablestudio.dev"}],"useCases":["Animate product photos into short promotional video clips","Generate social media video content from a single still image","Create motion previews from concept art or storyboard frames","Produce interpolation videos between two keyframes","Automate video asset creation in agent workflows without subscriptions"],"bestFor":["Agents needing cheap, fast image-to-video with no subscription","Workflows requiring programmatic video generation with crypto micropayments","Low-cost prototyping of video content from existing images"],"notFor":["Long-form video (max 12 seconds per generation)","Users without a crypto wallet (requires USDC on Base or Tempo)","High-fidelity cinematic output (use full Seedance or Veo 3.1 instead)"],"kindDetails":{"docs":{"llmsTxt":"https://stablestudio.dev/llms.txt","homepage":"https://stablestudio.dev"},"tags":["image","video","generation","nano-banana","gpt-image","grok","flux","sora","veo","seedance","wan"],"realm":"stablestudio.dev","status":"active","methods":{"tempo":{"assets":["0x20c000000000000000000000b9537d11c60e8b50"],"intents":["charge"]}},"provider":{"url":"https://stablestudio.dev","name":"Merit Systems"},"categories":["ai","media"],"service_id":"stablestudio","integration":"first-party","service_name":"StableStudio","service_description":"Pay-per-generation AI image and video creation — Nano Banana, GPT Image, Grok, Flux, Sora, Veo, Seedance, and Wan."},"updatedAt":"2026-04-22T02:45:08.262Z"}}