Text-to-video, first and last frame, and multimodal reference generation with Seedance 2 and Seedance 2 Fast
image_urlsreference_image_urls, reference_video_urls, and reference_audio_urlsresolution supports 480p and 720pduration accepts integer values from 4 to 15image_urls supports up to 2 itemsimage_urls is mutually exclusive with all reference_*_urls fieldsaspect_ratio supports 1:1, 21:9, 4:3, 3:4, 16:9, and 9:16All API endpoints require Bearer Token authentication
Get your API Key:
Visit the API Key Management Page to get your API Key
Add it to the request header:
Authorization: Bearer YOUR_API_KEYSeedance 2 model identifier
seedance-2, seedance-2-fast Input parameters for Seedance 2 generation. image_urls cannot be combined with any reference_*_urls field.
Optional webhook callback URL for result notifications.
"https://your-domain.com/callback"