{"id":"9b884685-f0bc-412c-9c77-9ee6b84ea0e6","shortId":"tXX9xh","kind":"mpp","title":"Seedance image-to-video generation via micropayments — up to 1080p, 4–12s clips, $0.33–$0.99 per generation.","tagline":"Seedance image-to-video generation via micropayments — up to 1080p, 4–12s clips, $0.33–$0.99 per generation.","description":"This endpoint animates a static image into a video clip using the Seedance model, accessed through StableStudio's pay-per-generation API. It accepts a source image URL (uploaded via StableStudio's file 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, one-shot charge) or x402, settling in USDC on Base (EIP-155:8453). The dynamic price ranges from $0.33 to $0.99 depending on resolution and duration. No API keys are needed — callers POST to the endpoint, receive a 402 payment challenge, sign a USDC authorization, and resubmit with a `PAYMENT-SIGNATURE` header. The response returns a `jobId` with status \"pending\"; callers then poll `GET /api/jobs/{jobId}` (authenticated via SIGN-IN-WITH-X wallet signature) every 10 seconds until the job completes (~1 minute typical). Completed jobs return a `videoUrl` and `thumbnailUrl`.\n\nThe endpoint is POST-only, which is why HEAD/GET probes returned 405 — this is expected behavior, not a sign the endpoint is down. StableStudio provides a full OpenAPI 3.1 spec with detailed input schemas, and also offers a faster variant at `/api/generate/seedance-fast/i2v` ($0.04–$0.12, ~40s) for lower-cost generation.","tags":["image","video","generation","nano-banana","gpt-image","grok","flux","sora","veo","seedance","wan"],"capabilities":["image-to-video","seedance-model","video-generation","micropayment-api","usdc-on-base","mpp-tempo","x402-payment","up-to-1080p","audio-generation","frame-interpolation","configurable-duration","configurable-aspect-ratio","no-api-key"],"categories":["video","vision"],"synonyms":["i2v","image to video","animate image","Seedance","video from image","AI video generation","image animation","StableStudio video","motion from still"],"warnings":["HEAD/GET probes returned 405 — endpoint is POST-only; no direct 402 challenge was captured for this specific route, but the OpenAPI spec confirms the payment flow","Images must be uploaded via StableStudio's 3-step file upload flow ($0.01) before use in i2v requests","last_image interpolation feature is documented but behavior details are sparse"],"endpointUrl":"https://stablestudio.dev/api/generate/seedance/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 3.1 schema with detailed input/output definitions, clear pricing documentation, and comprehensive guidance text. The endpoint returned 405 on HEAD/GET probes (expected for POST-only), so live 402 challenge was not directly captured, but the OpenAPI spec and agents.txt confirm the payment flow. Slight deduction for no direct 402 capture on this specific 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'/api/generate/seedance-fast/i2v':253 '/api/jobs':183 '0.04':254 '0.12':255 '0.33':15,33,136 '0.99':16,34,138 '1':201 '10':195 '1080p':11,29 '12':86 '12s':13,31 '3.1':240 '4':12,30,85 '402':156 '405':223 '40s':256 '480p/720p/1080p':89 '8453':130 'AI video generation' 'Seedance' 'StableStudio video' 'accept':61 'access':51 'also':247 'anim':39 'animate image' 'api':59,145 'aspect':90 'audio':92 'audio-generation' 'authent':185 'author':162 'base':127 'behavior':227 'caller':149,179 'camera':94 'challeng':158 'charg':120 'clip':14,32,46 'complet':200,204 'configurable-aspect-ratio' 'configurable-duration' 'cost':260 'depend':139 'describ':76 'desir':78 'detail':243 'durat':84,143 'dynam':132 'eip':128 'enabl':103 'endpoint':38,153,212,232 'everi':194 'expect':226 'faster':250 'field':102 'file':70 'flow':72 'frame':107 'frame-interpolation' 'full':238 'generat':6,18,24,36,58,93,261 'get':182 'handl':110 'head/get':220 'header':170 'i2v' 'imag':3,21,42,64,101 'image animation' 'image to video' 'image-to-video':2,20 'input':244 'interpol':104 'job':199,205 'jobid':175,184 'key':146 'last':100 'lock':95 'lower':259 'lower-cost':258 'method':116 'micropay':8,26 'micropayment-api' 'minut':202 'model':50 'motion':79 'motion from still' 'mpp':113 'mpp-tempo' 'need':148 'no-api-key' 'offer':248 'one':118 'one-shot':117 'openapi':239 'option':81,99 'paramet':82 'pay':56 'pay-per-gener':55 'payment':108,157,168 'payment-signatur':167 'pend':178 'per':17,35,57 'poll':181 'post':150,215 'post-on':214 'price':133 'probe':221 'prompt':75 'protocol':114 'provid':236 'rang':134 'ratio':91 'receiv':154 'resolut':88,141 'respons':172 'resubmit':164 'return':173,206,222 'schema':245 'second':87,196 'seed':97 'seedanc':1,19,49 'seedance-model' 'settl':123 'shot':119 'sign':159,188,230 'sign-in-with-x':187 'signatur':169,193 'sourc':63 'spec':241 'stablestudio':53,68,235 'static':41 'status':177 'tempo':115 'text':74 'thumbnailurl':210 'two':106 'typic':203 'up-to-1080p' 'upload':66,71 'url':65 'usdc':125,161 'usdc-on-base' 'use':47 'variant':251 'via':7,25,67,111,186 'video':5,23,45 'video from image' 'video-generation' 'videourl':208 'wallet':192 'x':191 'x402':122 'x402-payment'","prices":[{"id":"ead74860-0837-4851-b7be-a0b529029b50","listingId":"9b884685-f0bc-412c-9c77-9ee6b84ea0e6","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 image-to-video"},"asset_contract":"0x20c000000000000000000000b9537d11c60e8b50"},"createdAt":"2026-04-18T20:00:07.134Z"}],"sources":[{"listingId":"9b884685-f0bc-412c-9c77-9ee6b84ea0e6","source":"mpp_dev","sourceId":"stablestudio:POST:/api/generate/seedance/i2v","sourceUrl":"https://mpp.dev/api/services","isPrimary":true,"firstSeenAt":"2026-04-18T20:00:07.134Z","lastSeenAt":"2026-04-22T02:45:08.219Z"}],"details":{"listingId":"9b884685-f0bc-412c-9c77-9ee6b84ea0e6","quickStartSnippet":"# 1. POST without payment to get 402 challenge\ncurl -X POST https://stablestudio.dev/api/generate/seedance/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\n# 2. Sign USDC payment, re-POST with PAYMENT-SIGNATURE header\n# 3. Poll GET /api/jobs/{jobId} with SIGN-IN-WITH-X 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":false,"generate_audio":false},"exampleResponse":{"type":"seedance-i2v","jobId":"job_abc123def456","status":"pending","success":true},"schema":{"path":"/api/generate/seedance/i2v","method":"POST","payment":{"intent":"charge","method":"tempo","dynamic":true,"currency":"0x20c000000000000000000000b9537d11c60e8b50","decimals":6,"description":"Seedance image-to-video"},"description":"Seedance image-to-video"},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Seedance i2v costs $0.33–$0.99 per generation and takes ~1 minute","source_url":"https://stablestudio.dev"},{"claim":"Endpoint accepts POST with prompt, image, duration (4-12s), resolution (480p/720p/1080p), aspect_ratio, generate_audio, camera_fixed, seed, and optional last_image","source_url":"https://stablestudio.dev"},{"claim":"Payment settles in USDC on Base (EIP-155:8453) via x402 or MPP Tempo method","source_url":"https://stablestudio.dev"},{"claim":"Seedance-fast variant available at $0.04–$0.12 with ~40s generation time","source_url":"https://stablestudio.dev"},{"claim":"File upload requires 3-step flow costing $0.01 to obtain a blobUrl","source_url":"https://stablestudio.dev"},{"claim":"Job polling uses SIGN-IN-WITH-X wallet signature authentication; videos return videoUrl and thumbnailUrl","source_url":"https://stablestudio.dev"}],"useCases":["Animate product photos into short promotional video clips","Generate social media video content from a single hero image","Create animated storyboard sequences from concept art frames","Produce video transitions by interpolating between two keyframes using last_image","Build automated video pipelines where agents pay per generation without subscriptions"],"bestFor":["Agents or apps needing on-demand image-to-video without API key management","Pay-per-use video generation with crypto micropayments","Generating 4–12 second clips at up to 1080p from a source image","Developers integrating via x402 or MPP payment protocols"],"notFor":["Long-form video generation (max 12 seconds per clip)","Users who need free or subscription-based access without crypto wallets","Real-time or streaming video generation (jobs take ~1 minute)"],"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":"2026-04-22T02:45:08.219Z"}}