Leap API
Kling 2.6 APIKuaishou's model, through Leap
Kling's value model: smooth motion at a low price. One Leap key and one balance run it and every other model, priced per call in dollars.
First $5 top-up, no card fee.
- One key for every model
- Every call quoted first
- A failed call costs nothing
curl https://api.tryleap.ai/v1/generations \ -H "x-api-key: $LEAP_API_KEY" \ -H "content-type: application/json" \ -H "prefer: wait=60" \ -d '{ "model": "kling/kling-2.6", "input": { "prompt": "She smiles a little wider and tilts her head slightly, a natural blink, soft studio light", "aspect_ratio": "16:9", "duration": 5 } }' # Video often outlasts the wait and answers "queued" or "running".# Put its "id" in GENERATION_ID and read it again until it is done:# curl https://api.tryleap.ai/v1/generations/$GENERATION_ID -H "x-api-key: $LEAP_API_KEY"Set LEAP_API_KEY and send it. With prefer: wait=60 the answer holds the result when the call finishes within a minute; a longer one is read again by its ID.
- Model ID
- kling/kling-2.6
- Price per call
- $0.285 to $0.57
- This call
- A 5-second clip costs $0.285.
- First top-up
- A first top-up of $5, with no fee, covers 17 calls like it.
What it makes
Made with Kling 2.6
Real Kling 2.6 runs on Leap. Each one passed Leap's media quality check before it was shown.
“Hand-painted anime animation: the girl in the yellow raincoat watches as the small train slowly approaches the platform, a warm breeze moves her hair and the raincoat, tall grass sways, clouds drift slowly in the sunset sky. Gentle, cinematic.”
“Cinematic automotive shot: the camera starts high and slowly cranes down and dollies in behind the vintage green coupe on the wet Tokyo backstreet, its red tail lights glowing, light rain falling, lantern reflections shimmering in puddles and sliding across the glossy paint. Smooth, moody.”
“Wildlife documentary: the snow leopard walks slowly along the rocky ridge toward camera, its thick tail swaying, snowflakes falling, the telephoto camera tracks with it. Natural animal motion, realistic.”
“Slow-motion macro food commercial: the vivid green matcha stream keeps pouring into the iced milk, swirling green clouds marble through the white milk, droplets splash and hang in the air, ice cubes shift slightly. Steady camera, crisp backlight.”
“She smiles a little wider and tilts her head slightly, a natural blink, soft studio light”
“1980s camcorder home video: she laughs and waves at the camera, soft VHS colours, slight handheld wobble”
Inputs
What Kling 2.6 takes
Only prompt is needed; everything else has a default. The same schema is public, with no key, at api.tryleap.ai/v1/public/models/kling/kling-2.6.
MCP
Or let your agent call it.
Leap's MCP server lets Claude Code, Claude, VS Code and other MCP clients run Kling 2.6, read its inputs and fetch the result, on your balance. Signing in happens in the browser, so there is no key to paste.
claude mcp add --transport http leap https://app.tryleap.ai/api/mcpClaude Code signs you in through the browser the first time it calls Leap.
curl -fsSL https://www.tryleap.ai/install.sh | shInstalls the Leap skill for every coding agent it finds: which endpoint to call, how to read a model's inputs, when to wait and when to poll.
Questions
Kling 2.6 API questions
- How much does the Kling 2.6 API cost?
- A 5-second clip costs $0.285. By length, a call costs $0.285 to $0.57. That is the provider's list price plus our margin, the same as in the studio. POST /v1/quotes prices any input for free before you run it.
- Can I try the Kling 2.6 API for free?
- No. API keys run on paid credit, so a key's first call needs a top-up, and quotes are free. A 5-second clip costs $0.285. A first top-up of $5, with no fee, covers 17 default calls.
- Do I pay for calls that fail?
- No. The price is held when a call starts and charged only if it succeeds. A call that fails, or that the model's safety filter refuses, comes back with status "failed" and a failure_cause, and the hold is released.
- Is this Kuaishou's own API?
- No. Leap is a separate service: it sends your call to Kuaishou's model and gives you what it makes, so you need no Kuaishou account. One Leap key runs Kling 2.6 and every other model in the catalog, from one balance.
- What are the rate limits?
- 600 requests a minute per API key and 300 a minute per IP address. A batch starts up to 50 calls in one request. A 429 says how long to wait in its Retry-After header.
- Can an AI agent call it?
- Yes. Leap's MCP server lets Claude Code, Claude, VS Code and other MCP clients find Kling 2.6, read its inputs, run it and fetch the result on your balance. The client signs you in through the browser, so there is no key to paste.
Build with Kling 2.6.
Keys run on paid credit, and the first top-up has no fee. The same key runs every model on Leap.
Get an API key