Unified AI API Platform
Unified AI API for Video, Music, Image & LLMs
One API key for 240+ AI models: video, image, music and LLM APIs. Use Claude Code, Codex and Cursor. Pay as you go.
Why developers choose CAPI
The boring parts of multi-model AI infrastructure, handled.
All models, one API
Access video, music, image, and LLM models through a single API key — including Suno (no official API available elsewhere) and Kling video generation.
Production ready
Manage API keys, upstream channels, request routing, and usage in one place.
Transparent pricing
Pay only for what you use. No subscriptions, no hidden fees. See exactly what each generation costs before you call the API.
curl -X POST https://capi.ai/api/v1/kling/text_to_video \
-H "Authorization: Bearer YOUR_API_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"model": "kling-v3-turbo-text-to-video",
"prompt": "A paper kite flying above a quiet coastal town at sunrise",
"duration_seconds": 5,
"aspect_ratio": "16:9",
"output_resolution": "720p"
}'{
"billing": {
"refund": null,
"reservation": null,
"settlement": null
},
"id": "tsk_reference_demo",
"status": "completed",
"videos": [
{
"url": "https://file.capi.ai/reference-video.mp4"
}
]
}Three Steps to Your First Generation
Get an API Key
Sign up and generate a free API key from the dashboard. No credit card required.
Pick a Model
Browse the model catalog, choose by modality and provider, and copy the model ID.
Call the API
Send a POST request with your prompt and model ID. CAPI routes it to the provider, manages the async lifecycle, and returns structured JSON.
FAQ