Seedance Fast text-to-video generation via micropayments — $0.04–$0.12 per clip, up to 1080p, 4–12 seconds.
What it does
This endpoint generates videos from text prompts using the Seedance Fast model, hosted on StableStudio. It is part of a broader pay-per-generation platform that offers multiple AI image and video models with no subscriptions or API keys required. Payment is handled via USDC micropayments on Base (x402/MPP protocol with Tempo settlement).
The Seedance Fast t2v endpoint accepts a text prompt and optional parameters including duration (4–12 seconds), resolution (480p, 720p, or 1080p), aspect ratio (16:9, 9:16, 4:3, 3:4, 1:1, 21:9), audio generation, camera lock, and a reproducibility seed. Pricing is dynamic, ranging from $0.04 to $0.12 per generation depending on resolution and duration, with typical generation time around 40 seconds. This is the budget-friendly variant of the full Seedance model ($0.33–$0.99).
The workflow is asynchronous: POST the generation request with a signed USDC payment header, receive a jobId, then poll `GET /api/jobs/{jobId}` (authenticated via SIGN-IN-WITH-X wallet signature) until the job completes and returns a videoUrl. The endpoint uses the standard x402/MPP 402 payment challenge flow. Note that this endpoint only accepts POST requests — HEAD and GET return 405, which is expected behavior.
Capabilities
Use cases
- —Generating short video clips from text descriptions for social media content
- —Creating quick video prototypes or storyboard animations from written scenes
- —Producing marketing or explainer video snippets programmatically
- —Agent-driven video generation pipelines that pay per call with no API key
Fit
Best for
- —Budget-conscious text-to-video generation (as low as $0.04 per clip)
- —Agents needing keyless, pay-per-use video generation via crypto micropayments
- —Quick turnaround video drafts (~40s) at up to 1080p resolution
Not for
- —Long-form video generation (max 12 seconds per clip)
- —Use cases requiring synchronous/streaming video output
- —Users without a crypto wallet for USDC payments on Base
Quick start
# 1. POST without payment to get 402 challenge
curl -X POST https://stablestudio.dev/api/generate/seedance-fast/t2v \
-H 'Content-Type: application/json' \
-d '{"prompt": "A cat walking on a beach at sunset", "duration": "5", "resolution": "720p", "aspect_ratio": "16:9"}'
# Returns 402 with PAYMENT-REQUIRED header (base64 JSON)
# 2. Decode challenge, sign USDC authorization, re-POST with PAYMENT-SIGNATURE header
# 3. Poll GET /api/jobs/{jobId} with SIGN-IN-WITH-X header until completeExample
Request
{
"prompt": "A cat walking on a beach at sunset, cinematic lighting",
"duration": "5",
"resolution": "720p",
"aspect_ratio": "16:9",
"camera_fixed": false,
"generate_audio": false
}Response
{
"type": "seedance-fast-t2v",
"jobId": "abc123-def456",
"status": "pending",
"success": true
}Endpoint
Quality
Full OpenAPI schema with detailed input/output definitions, comprehensive x-guidance documentation, clear pricing, and well-documented async job flow. The endpoint returned 405 on HEAD/GET probes (expected for a POST-only route), so liveness via 402 challenge was not directly captured, but the broader platform is live (root returns 200) and the OpenAPI spec is complete.
Warnings
- —Direct 402 challenge was not captured for this specific endpoint — HEAD and GET returned 405 (expected for POST-only route)
- —Pricing is dynamic; actual cost per generation varies by resolution and duration within the $0.04–$0.12 range
- —Requires a crypto wallet with USDC on Base network for payment
Citations
- —Seedance Fast t2v costs $0.04–$0.12 per generation with ~40s generation timehttps://stablestudio.dev
- —Payment is USDC on Base via x402/MPP protocols with Tempo settlementhttps://stablestudio.dev
- —Seedance Fast t2v accepts prompt, duration (4-12s), resolution (480p/720p/1080p), aspect_ratio, generate_audio, camera_fixed, and seed parametershttps://stablestudio.dev
- —Async job polling via GET /api/jobs/{jobId} with SIGN-IN-WITH-X wallet signature authenticationhttps://stablestudio.dev
- —StableStudio describes itself as AI image/video generation with micropayments, USDC on Basehttps://stablestudio.dev