GET

/v1/schemas/fal/video/fal-ai/kling-video/v1.5/pro/image-to-video

Accept:

kind inputactivity videohash d1bb5137…extracted Jul 6, 2026version currentsource upstream spec ↗

field	recorded source
schema	Source linked above. Source trace `6e3dc96d7fec8f0a0d94eb90b37997c2090fc5e746815de8cbefb35a6cfd662a` { "fetchedAt": 1783329487, "extractorVersion": "1", "verifiedAt": null }

Request body

9 properties · 2 required · 2 $defs

property	type	description	constraints
image_url*	string
prompt*	string		length ≤ 2500
aspect_ratio	enum	The aspect ratio of the generated video frame	16:9 \| 9:16 \| 1:1 · default: "16:9"
tail_image_url	string	URL of the image to be used for the end of the video	nullable
dynamic_masks	DynamicMask[]	List of dynamic masks	nullable
static_mask_url	string	URL of the image for Static Brush Application Area (Mask image created by users using the motion brush)	nullable
negative_prompt	string		length ≤ 2500 · default: "blur, distort, and low quality"
cfg_scale	number	The CFG (Classifier Free Guidance) scale is a measure of how close you want the model to stick to your prompt.	0 ≤ n ≤ 1 · default: 0.5
duration	enum	The duration of the generated video in seconds	5 \| 10 · default: "5"

Types

2 $defs

DynamicMaskobject

mask_url*	string	URL of the image for Dynamic Brush Application Area (Mask image created by users using the motion brush)
trajectories	Trajectory[]	List of trajectories

Trajectoryobject

y*	integer	Y coordinate of the motion trajectory
x*	integer	X coordinate of the motion trajectory

Validate a payload

before you spend tokens

shell

$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"fal-ai/kling-video/v1.5/pro/image-to-video","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}