Seedance 1.5 Pro API — ByteDance AI Dance & Motion Video API

Provider

ByteDance

Pricing

7–84 credits per video (~$0.014–$0.168)

Speed

60–120 seconds

Output

video

Quick Start

Send a request to the Seedance 1.5 Pro API:

bash

curl -X POST https://apiin.one/api/v1/videos/generations \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "seedance-1-5-pro",
  "prompt": "A dancer performing contemporary ballet in a spotlight, slow motion",
  "resolution": "720p",
  "duration": "8",
  "generateAudio": false
}'

API Endpoint

POST/api/v1/videos/generationsSeedance 1.5 Pro

Send a POST request with your API key to generate content using Seedance 1.5 Pro.

Headers

Header	Type	Requis	Description
`Authorization`	string	Requis	Bearer YOUR_API_KEY
`Content-Type`	string	Requis	application/json

Body Parameters

Paramètre	Type	Requis	Description
`model`	string	Requis	Model identifier: "seedance-1-5-pro"
`prompt`	string	Requis	Text description of the video
`image`	string	Optionnel	Reference image URL for image-to-video
`aspect_ratio`	string	Optionnel	Aspect ratio: 16:9, 9:16, 4:3, 3:4, 1:1 (Par défaut : 16:9)
`resolution`	string	Optionnel	Output resolution: "480p" or "720p" (Par défaut : 480p)
`duration`	string	Optionnel	Video duration: "4", "8", or "12" seconds (Par défaut : 4)
`generateAudio`	boolean	Optionnel	Enable audio generation (doubles credits) (Par défaut : false)
`fixedLens`	boolean	Optionnel	Lock camera for stable shot (Par défaut : false)

Example Request

json

{
  "model": "seedance-1-5-pro",
  "prompt": "A dancer performing contemporary ballet in a spotlight, slow motion",
  "resolution": "720p",
  "duration": "8",
  "generateAudio": false
}

Example Response

Successful task creation response.

{
  "code": 200,
  "message": "success",
  "data": {
    "task_id": "n38xxxx_seedance",
    "status": "IN_PROGRESS"
  }
}

Check Task Status

For asynchronous tasks, poll the status endpoint to check when your task is complete:

GET/api/v1/tasks/{task_id}Poll task status

Returns the current status of a generation task. Poll until status is 'completed' or 'failed'.

bash

curl https://apiin.one/api/v1/tasks/task_abc123 \
  -H "Authorization: Bearer aio_your_key"

Use Cases

✓Generate dance and choreography videos from text
✓Create motion-rich video clips for entertainment apps
✓Animate characters with natural human motion
✓Produce social media dance content at scale

API Tester

Test the Seedance 1.5 Pro API directly from your browser:

Aire de jeux APIPOST

URL de base

Point de terminaison

En-têtes

Corps de la requête

Error Codes

{
  "error": {
    "code": 400,
    "message": "Invalid parameters",
    "type": "invalid_request"
  }
}

Frequently Asked Questions

How much does the Seedance API cost?

Credits depend on resolution, duration and audio. 480p 4s no-audio costs 7 credits, 720p 12s with-audio costs 84 credits. Audio-enabled doubles the cost.