# StableStudio Seedance Fast Text-to-Video

> StableStudio Seedance Fast Text-to-Video is a paid API for AI agents from stablestudio.io, paid per call via x402, $20/call, status unknown (last checked 2026-09-15).

Generates a video from a text prompt using the Seedance Fast model, returning a job ID for async retrieval.

## Facts

- Endpoint: POST https://stablestudio.io/api/generate/seedance-fast/t2v
- Price: $20/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stablestudio-seedance-fast-text-to-video-22791561
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HveAFZA3I488GlycjYgsK

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability stablestudio-seedance-fast-text-to-video-22791561 -d '<json body>'
```

Example prompt: Use StableStudio to generate a video of a golden retriever running through a sunlit meadow with wildflowers, in 16:9 aspect ratio at 1 MP resolution, webp format at quality 85, with safety tolerance 2.

## When to prefer this

Choose this endpoint when you need to generate a short video from a text prompt using the Seedance Fast model with pay-per-use pricing (no subscription required). Prefer this over image-generation endpoints when the output must be a video clip. Best for one-off or infrequent generation tasks where a subscription model is undesirable. Note the $20 USDC cost per call and asynchronous (job-based) response pattern.

## Known failure modes

- Missing or empty prompt returns a validation error
- Prompt exceeding 10,000 characters is rejected
- Invalid enum value for resolution, aspect_ratio, or output_format causes a 400 error
- Payment of $20 USDC not received causes a 402 Payment Required response
- Safety tolerance out of range (below 1 or above 5) causes a validation error
- Output quality out of range (below 0 or above 100) triggers a validation error
- Service may return a failed job status upon polling if generation fails internally

## How this service works

Pay-per-generation AI image and video creation. No subscriptions ever.

## Output

A JSON object containing the job ID (jobId), generation type ('seedance-fast-t2v'), current status ('pending'), and a success boolean. The agent must poll a separate endpoint using the jobId to retrieve the completed video once processing is done.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "prompt": {
   "type": "string",
   "maxLength": 4000,
   "minLength": 1,
   "description": "A detailed description of the video to generate"
  },
  "duration": {
   "enum": [
    "4",
    "5",
    "6",
    "7",
    "8",
    "9",
    "10",
    "11",
    "12",
    "13",
    "14",
    "15"
   ],
   "type": "string",
   "default": "5",
   "description": "Duration of the video in seconds"
  },
  "resolution": {
   "enum": [
    "720x720",
    "720x960",
    "960x720",
    "1280x720",
    "720x1280",
    "1280x540"
   ],
   "type": "string",
   "description": "Optional exact pixel resolution override"
  },
  "aspectRatio": {
   "enum": [
    "1:1",
    "3:4",
    "4:3",
    "16:9",
    "9:16",
    "21:9"
   ],
   "type": "string",
   "default": "16:9",
   "description": "Aspect ratio of the output video"
  },
  "callBackUrl": {
   "type": "string",
   "format": "uri",
   "description": "Optional Kinovi callback URL for API users"
  },
  "outputResolution": {
   "enum": [
    "480p",
    "720p"
   ],
   "type": "string",
   "default": "720p",
   "description": "Output quality tier"
  },
  "upscaleResolution": {
   "type": "string",
   "const": "4k",
   "description": "Upscale the generated video to 4K"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "type": "seedance-fast-t2v",
  "jobId": "cmpbmzaee000j04jrzx4f43tw",
  "status": "pending",
  "pollUrl": "https://stablestudio.dev/api/jobs/cmpbmzaee000j04jrzx4f43tw",
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stablestudio-seedance-fast-text-to-video-22791561/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stablestudio.io](https://www.zero.xyz/host/stablestudio.io/llms.txt)