Seedance 2.0 video generation

Seedance 2.0 supports text-to-video, image-to-video, and reference-media generation through asynchronous tasks.

Base URL: https://apimaster.ai/v1 is https://apimaster.ai/v1. Do not add another /v1 to paths.

Parameters

Field	Type	Required	Description
model	string	yes	doubao-seedance-2.0
prompt	string	yes	Video description
duration	integer	no	Duration in seconds, default 5
resolution	string	no	480p, 720p, 1080p, or 4K
aspect_ratio	string	no	16:9, 4:3, 1:1, 3:4, 9:16, 21:9, or adaptive
image_urls	string[]	no	Public reference image URLs
video_urls	string[]	no	Public reference video URLs
audio_urls	string[]	no	Public reference audio URLs
generate_audio	boolean	no	Generate audio
watermark	boolean	no	Add a watermark
seed	integer	no	Reproducibility seed
output_format	string	no	mp4 or mov

Submit a task

curl -s "https://apimaster.ai/v1/videos/generations" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "doubao-seedance-2.0",
    "prompt": "Sunlight through a forest, smooth forward camera movement",
    "duration": 5,
    "resolution": "720p",
    "aspect_ratio": "16:9",
    "generate_audio": false
  }'

The response contains a task_id:

{"code":200,"data":[{"status":"submitted","task_id":"task_xxxxxxxx"}]}

Poll and download

curl -s "https://apimaster.ai/v1/videos/task_xxxxxxxx" -H "Authorization: Bearer YOUR_API_KEY"
curl -L "https://apimaster.ai/v1/videos/task_xxxxxxxx/content" -H "Authorization: Bearer YOUR_API_KEY" -o output.mp4

Statuses include submitted, in_progress, completed, and failed. Download promptly after completion.

Billing

Billing is based on generated duration and output resolution. Reference images, videos, or audio may incur additional media charges. Check the current Video/media pricing in the dashboard before submitting. Failed tasks are not charged for generation.

Errors

400 invalid parameters, 401 invalid API key, 402 insufficient balance, 429 rate limited, and 500/502 temporary service errors.

See also: Video generation overview and Seedance 2.5.