| Verzoek-ID | string | Seedance 2.0 video-ID. | cab9517f-1818-4910-8d66-292701c78c2d |
| snel | string | Optional prompt to guide the extension. Reference additional images with @image2…@image9, videos with @video1…@video3, and audio with @audio1…@audio3 — the source video's last frame is always @image1. | |
| Afbeeldings-URL's | array | Up to 8 additional reference image URLs (JPEG/PNG/WebP). Each Nth image corresponds to @image(N+1) in the prompt (the source video's last frame is @image1). | undefined |
| Videoreferentie-URL's | array | 3 video-URL (MP4, 15). N videoprompt @videoN. | undefined |
| Audioreferentie-URL's | array | Up to 3 reference audio clip URLs (MP3/WAV, total max 15s). Each Nth audio corresponds to @audioN in the prompt. | undefined |
| aspectverhouding | Enum (6 opties) | Output video aspect ratio (only used when reference images/videos/audio are provided). | 16:9 |
| Resolutie | Enum (2 opties) | Output resolution. Price scales with resolution: 720p is cheapest, 1080p is most expensive. | 720p |