curl --request POST \
--url https://api.vidgo.ai/api/generate/submit \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"model": "blackforestlabs/flux-3/keyframes-to-video",
"input": {
"keyframes": [
{
"image_url": "https://example.com/image.png",
"frame_index": 0
}
],
"prompt": "A quiet forest under soft morning light, with natural detail.",
"duration": 5,
"resolution": "720p",
"aspect_ratio": "auto",
"sound": true
}
}
'
{
"code": 200,
"data": {
"task_id": "task-unified-example",
"status": "running",
"created_time": "2026-09-10T08:00:00"
}
}{
"detail": "<string>"
}{
"detail": "<string>"
}{
"detail": "<string>"
}{
"detail": "<string>"
}"Request timeout"{
"detail": "<string>"
}{
"detail": "<string>"
}{
"detail": "<string>"
}{
"detail": "<string>"
}{
"detail": "<string>"
}Flux
FLUX 3 Keyframes to Video
Build video sequences around chosen image keyframes with FLUX 3, controlling where visual references appear along the timeline.
POST
/
api
/
generate
/
submit
curl --request POST \
--url https://api.vidgo.ai/api/generate/submit \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"model": "blackforestlabs/flux-3/keyframes-to-video",
"input": {
"keyframes": [
{
"image_url": "https://example.com/image.png",
"frame_index": 0
}
],
"prompt": "A quiet forest under soft morning light, with natural detail.",
"duration": 5,
"resolution": "720p",
"aspect_ratio": "auto",
"sound": true
}
}
'
{
"code": 200,
"data": {
"task_id": "task-unified-example",
"status": "running",
"created_time": "2026-09-10T08:00:00"
}
}{
"detail": "<string>"
}{
"detail": "<string>"
}{
"detail": "<string>"
}{
"detail": "<string>"
}"Request timeout"{
"detail": "<string>"
}{
"detail": "<string>"
}{
"detail": "<string>"
}{
"detail": "<string>"
}{
"detail": "<string>"
}- Submit the request with
VIDGO_API_KEY. Atask_idis returned immediately. Keep it until the task reachesfinishedorfailed. - Use Query Task Status to retrieve the result. If you provide a
callback_url, Vidgo sends the result to your webhook when the task finishes or fails.
FLUX 3 Keyframes to Video
Build video sequences around chosen image keyframes with FLUX 3, controlling where visual references appear along the timeline.Available Models
- blackforestlabs/flux-3/keyframes-to-video - Guide a video sequence with images placed at specific frame indices.
Duration Options
- 5-20 seconds - Set
durationas an integer. Default: 5 seconds.
Key Features
- Guide a video sequence with images placed at specific frame indices.
- Choose from
720p,1080poutput resolutions. - Control audio generation with
sound; it defaults totrue.
Advanced Parameters
Setmodel and optional callback_url at the request root. Place the parameters below inside input.
Send only the input fields supported by this workflow. Unsupported input fields are rejected before credits are deducted. Input URLs must use HTTP(S), include a hostname, and contain no embedded credentials.
Prompt
prompt: Required. Describe the scene and desired motion.- The prompt must not be blank when supplied.
Keyframes
keyframesis required and accepts 1-10 objects.- Each object requires a publicly accessible
image_urland an integerframe_index. - Frame indices must be unique and range from
0toduration * 24, inclusive.
Resolution
resolution:720p,1080p. Default:720p.
Aspect Ratio
aspect_ratio:auto,21:9,2:1,16:9,4:3,1:1,3:4,9:16. Default:auto.
Audio
sound: Set totrueto enable generated audio, orfalseto disable it. Default:true.
Pricing
Pricing depends on the selected model and applicable output settings. Check the Vidgo dashboard for the current rate. Credits are deducted on submission and refunded if the task fails.Authorizations
Use VIDGO_API_KEY.
Body
application/json
Keep model and callback_url at the root. Unknown root fields are ignored; unsupported input fields are rejected.
Vidgo public model ID. Must be blackforestlabs/flux-3/keyframes-to-video.
Available options:
blackforestlabs/flux-3/keyframes-to-video Example:
"blackforestlabs/flux-3/keyframes-to-video"
Show child attributes
Show child attributes
Optional public HTTP(S) endpoint for task completion notifications. HTTPS is recommended. Omit, use null, or use an empty string to disable callbacks.