Video: Edit & Effects

seedance-2-first-last-frame-fast (fast)

Fast Seedance 2 first/last-frame variant. Input: prompt + images_list (1 = start only, 2 = start+last). Output: video, lower latency. Use for: rapid morph/transition prototyping.

post/api/v1/seedance-2-first-last-frame-fast

Request

  • Base URL: https://api.muapi.ai
  • URL: https://api.muapi.ai/api/v1/seedance-2-first-last-frame-fast
  • Auth: one of:
    • API key in header x-api-key
    • OAuth 2 (client credentials, token URL https://api.muapi.ai/oauth/token)

Query parameters

webhookstring
team_idinteger nullable

Headers

x-api-keystring
x-embed-codestring nullable
x-agent-embed-codestring nullable
x-whitelabel-studiostring nullable
authorizationstring nullable

Request body

promptstring required

Text prompt describing the video (max 4000 characters).

images_liststring[] required

1 image = first frame only; 2 images = first and last frame.

webhook_urlstring uri nullable
aspect_ratio'adaptive' | '21:9' | '16:9' | '4:3' | '1:1' | '3:4' | '9:16'

Output aspect ratio. 'adaptive' matches the input frames (recommended for first/last-frame transitions). Concrete ratios may crop or pad.

durationinteger
high_bitrateboolean
resolution'720p' | '1080p' | '4k'

Output resolution. Price scales with resolution — see the model's pricing table.

Response

Successful Response

unknown required

Changes

No recorded changes to this operation across all 2 revisions of this API.