fal.ai·Video generation

Kling 2.1 Master

/fal-ai/kling-video/v2.1/master/text-to-videoasync$0.42 / second of output

Kling 2.1 Master: The premium endpoint for Kling 2.1, designed for top-tier text-to-video generation with unparalleled motion fluidity, cinematic visuals, and exceptional prompt precision. Returns hosted file URLs (download promptly; fal keeps them for a limited time). Billed per second of output.

Charged per second of output produced; a call that produces nothing is charged one unit.

Input

promptstringrequired
prompt
negative_promptstring
negative_prompt (default "blur, distort, and low quality")
aspect_ratiostring
The aspect ratio of the generated video frame (default "16:9")
16:9, 9:16, 1:1
durationstring
The duration of the generated video in seconds (default "5")
5, 10
cfg_scalenumber
The CFG (Classifier Free Guidance) scale is a measure of how close you want the model to stick to your prompt. (default 0.5)

Field	Type	Required	Description
prompt	string	yes	prompt
negative_prompt	string	—	negative_prompt (default "blur, distort, and low quality")
aspect_ratio	string (16:9, 9:16, 1:1)	—	The aspect ratio of the generated video frame (default "16:9")
duration	string (5, 10)	—	The duration of the generated video in seconds (default "5")
cfg_scale	number	—	The CFG (Classifier Free Guidance) scale is a measure of how close you want the model to stick to your prompt. (default 0.5)

Run it

curl -s https://sooma.dev/v1/run \ -H "Authorization: Bearer $SOOMA_API_KEY" \ -H "Content-Type: application/json" \ -d '{"provider":"fal","endpoint":"/fal-ai/kling-video/v2.1/master/text-to-video","input":{"prompt":"A cinematic photo of a lighthouse at dawn, soft light"}}'

Or ask your agent: it will call inspect for this schema and run it over MCP.