{"id":"0d7effb5-37f5-4583-be85-0348a400efdc","shortId":"zR9cFx","kind":"mpp","title":"Veo 3.1 Fast video generation via micropayments — text-to-video and image-to-video, ~30s, $1–$2 per generation.","tagline":"Veo 3.1 Fast video generation via micropayments — text-to-video and image-to-video, ~30s, $1–$2 per generation.","description":"This endpoint provides access to Google's Veo 3.1 model in a \"fast\" configuration through StableStudio, a pay-per-generation AI media platform. It generates videos from text prompts at 720p or 1080p resolution in 16:9 or 9:16 aspect ratios, with durations of 4, 6, or 8 seconds. Typical generation time is approximately 30 seconds, and pricing ranges from $1.00 to $2.00 per generation depending on resolution and duration. Payment is settled in USDC on Base (via x402 or MPP/Tempo). No API keys or subscriptions are required.\n\nBeyond pure text-to-video, the endpoint supports multiple image modes: first-frame (pass a single image to anchor the opening frame), reference (up to 3 reference images for style guidance), and interpolation (provide first and last frame images to animate between them). A negative prompt field lets you specify elements to exclude. The asynchronous job flow works in three steps: POST the generation request with a signed USDC payment, receive a jobId, then poll the job status endpoint (authenticated via SIGN-IN-WITH-X wallet signature) until the video URL is returned.\n\nStableStudio exposes a full OpenAPI 3.1 spec and supports both x402 and MPP (Tempo method, charge intent) payment protocols. The veo-3.1-fast variant trades some quality for significantly faster turnaround (~30s vs 1–2 minutes for the standard veo-3.1 endpoint). Image uploads for i2v modes use a separate three-step upload flow via Vercel Blob at $0.01 per upload.","tags":["image","video","generation","nano-banana","gpt-image","grok","flux","sora","veo","seedance","wan"],"capabilities":["text-to-video","image-to-video","frame-interpolation","reference-image-guidance","negative-prompt","720p-1080p-output","async-job-polling","usdc-micropayment","x402-payment","mpp-tempo-payment","no-api-key"],"categories":["video","vision"],"synonyms":["veo 3.1 fast","veo video generation","text to video api","ai video generator","google veo api","stablestudio veo","micropayment video generation","pay-per-use video ai","t2v api","image to video api"],"warnings":["Probe returned 405 because HEAD/GET were used on a POST-only endpoint; this does not indicate the endpoint is down","No dedicated documentation page exists (/docs returns 404); all docs are embedded in the OpenAPI spec x-guidance field","Image-to-video modes require a separate paid upload flow ($0.01) before the generation call"],"endpointUrl":"https://stablestudio.dev/api/generate/veo-3.1-fast/generate","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, comprehensive x-guidance documentation, clear pricing, and well-documented payment flow. The endpoint returned 405 on HEAD/GET probes (expected since it's POST-only), but the OpenAPI spec and agents.txt confirm it is live. Minor deduction for no direct 402 challenge capture on this specific endpoint and no dedicated docs 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'0.01':288 '1':18,39,262 '1.00':105 '1080p':76 '16':79,83 '2':19,40,263 '2.00':107 '3':160 '3.1':2,23,51,234 '30':99 '30s':17,38,260 '4':89 '6':90 '720p':74 '720p-1080p-output' '8':92 '9':80,82 'access':46 'ai':64 'ai video generator' 'anchor':153 'anim':175 'api':127 'approxim':98 'aspect':84 'async-job-polling' 'asynchron':189 'authent':214 'base':121 'beyond':133 'blob':286 'charg':244 'configur':56 'depend':110 'durat':87,114 'element':185 'endpoint':44,140,213,270 'exclud':187 'expos':230 'fast':3,24,55,251 'faster':258 'field':181 'first':146,169 'first-fram':145 'flow':191,283 'frame':147,156,172 'frame-interpolation' 'full':232 'generat':5,21,26,42,63,68,95,109,198 'googl':48 'google veo api' 'guidanc':165 'i2v':274 'imag':14,35,143,151,162,173,271 'image to video api' 'image-to-video':13,34 'intent':245 'interpol':167 'job':190,211 'jobid':207 'key':128 'last':171 'let':182 'media':65 'method':243 'micropay':7,28 'micropayment video generation' 'minut':264 'mode':144,275 'model':52 'mpp':241 'mpp-tempo-payment' 'mpp/tempo':125 'multipl':142 'negat':179 'negative-prompt' 'no-api-key' 'open':155 'openapi':233 'pass':148 'pay':61 'pay-per-gener':60 'pay-per-use video ai' 'payment':115,204,246 'per':20,41,62,108,289 'platform':66 'poll':209 'post':196 'price':102 'prompt':72,180 'protocol':247 'provid':45,168 'pure':134 'qualiti':255 'rang':103 'ratio':85 'receiv':205 'refer':157,161 'reference-image-guidance' 'request':199 'requir':132 'resolut':77,112 'return':228 'second':93,100 'separ':278 'settl':117 'sign':202,217 'sign-in-with-x':216 'signatur':222 'signific':257 'singl':150 'spec':235 'specifi':184 'stablestudio':58,229 'stablestudio veo' 'standard':267 'status':212 'step':195,281 'style':164 'subscript':130 'support':141,237 't2v api' 'tempo':242 'text':9,30,71,136 'text to video api' 'text-to-video':8,29,135 'three':194,280 'three-step':279 'time':96 'trade':253 'turnaround':259 'typic':94 'upload':272,282,290 'url':226 'usdc':119,203 'usdc-micropayment' 'use':276 'variant':252 'veo':1,22,50,249,268 'veo 3.1 fast' 'veo video generation' 'vercel':285 'via':6,27,122,215,284 'video':4,11,16,25,32,37,69,138,225 'vs':261 'wallet':221 'work':192 'x':220 'x402':123,239 'x402-payment'","prices":[{"id":"ed449022-08db-4234-be12-1432b9c7c25a","listingId":"0d7effb5-37f5-4583-be85-0348a400efdc","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":"Veo 3.1 Fast video generation"},"asset_contract":"0x20c000000000000000000000b9537d11c60e8b50"},"createdAt":"2026-04-18T20:00:09.583Z"}],"sources":[{"listingId":"0d7effb5-37f5-4583-be85-0348a400efdc","source":"mpp_dev","sourceId":"stablestudio:POST:/api/generate/veo-3.1-fast/generate","sourceUrl":"https://mpp.dev/api/services","isPrimary":true,"firstSeenAt":"2026-04-18T20:00:09.583Z","lastSeenAt":"2026-04-22T02:45:08.357Z"}],"details":{"listingId":"0d7effb5-37f5-4583-be85-0348a400efdc","quickStartSnippet":"# 1. POST without payment to get 402 challenge\ncurl -X POST https://stablestudio.dev/api/generate/veo-3.1-fast/generate \\\n  -H 'Content-Type: application/json' \\\n  -d '{\"prompt\": \"A golden retriever running on a beach at sunset\", \"durationSeconds\": \"4\", \"resolution\": \"720p\", \"aspectRatio\": \"16:9\"}'\n# Returns 402 with PAYMENT-REQUIRED header containing USDC amount\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":{"prompt":"A golden retriever running on a beach at sunset, cinematic lighting","imageMode":"none","resolution":"720p","aspectRatio":"16:9","negativePrompt":"blurry, low quality","durationSeconds":"4"},"exampleResponse":{"type":"veo-3.1-fast","jobId":"abc123-def456-ghi789","status":"pending","success":true},"schema":{"path":"/api/generate/veo-3.1-fast/generate","method":"POST","payment":{"intent":"charge","method":"tempo","dynamic":true,"currency":"0x20c000000000000000000000b9537d11c60e8b50","decimals":6,"description":"Veo 3.1 Fast video generation"},"description":"Veo 3.1 Fast video generation"},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Veo 3.1 Fast costs $1.00–$2.00 per generation with ~30s turnaround","source_url":"https://stablestudio.dev"},{"claim":"Supports durationSeconds of 4, 6, or 8 seconds at 720p or 1080p in 16:9 or 9:16","source_url":"https://stablestudio.dev"},{"claim":"Payment is USDC on Base via x402 or MPP Tempo method","source_url":"https://stablestudio.dev"},{"claim":"Image modes include none, first-frame, reference (up to 3 images), and interpolation","source_url":"https://stablestudio.dev"},{"claim":"StableStudio describes itself as AI image/video generation with micropayments, USDC on Base","source_url":"https://stablestudio.dev"}],"useCases":["Generate short video clips from text descriptions for social media content","Animate a static image into a video using first-frame mode","Create smooth transitions between two keyframes using interpolation mode","Produce quick video prototypes or storyboard animations from prompts","Generate portrait (9:16) or landscape (16:9) video assets programmatically"],"bestFor":["Agents or apps needing fast, on-demand video generation without subscriptions","Workflows requiring sub-minute turnaround for short AI-generated video clips","Developers integrating pay-per-call video generation via crypto micropayments","Image-to-video animation with style reference support"],"notFor":["Long-form video generation (max 8 seconds per clip)","Users without a crypto wallet (USDC on Base required for payment)","High-volume batch processing where subscription pricing would be cheaper"],"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":"2026-04-22T02:45:08.357Z"}}