Live AI model routesfor production API teams
One-stop access to live chat, image, video, audio, and tool models with one API key, one balance, and one billing console.
Google
ByteDance
MiniMaxPopular Models
Curated top models across categories — start building in minutes.
Kling 3.0
State-of-the-art AI video generation with 4K quality support. Text-to-video and image-to-video capabilities.
Hailuo 2.3
High-quality AI video generation by MiniMax. Supports image-to-video with standard and pro quality modes, cinematic motion quality.
Vidu Q3
Vidu Q3 by Shengshu Technology — advanced AI video generation with strong motion understanding and character consistency.
Wan 2.6
Alibaba's Wan 2.6 video generation model. Supports text-to-video and image-to-video with high-fidelity output.
Seedance 1.5 Pro
ByteDance's Seedance 1.5 Pro — exceptional dance and human motion video generation with text and image input.
PixVerse 5.6
PixVerse 5.6 — fast AI video generation with stylized output. Supports text-to-video and image-to-video.
LTX-2
LTX-2 19B — advanced AI video generation with text-to-video, image-to-video, lipsync, and control modes. Up to 1080p, 5–20 seconds.
Grok Video
xAI's Grok Video — AI video generation powered by Grok Imagine. Supports text-to-video and image-to-video.
One prompt — use API in One from any agent
Copy a single prompt to Codex, Claude, Cursor, or any coding agent so it can read the API in One docs index and answer route-specific questions.
Read the API in One documentation index below and answer my question based on it:
https://apiin.one/docs/llms.txt
About API in One:
A unified AI API gateway with OpenAI-compatible chat completions and REST async routes for live image, video, audio, and tool models. Billing is based on successful requests.
My question:
How do I call Kling 3 with Python to generate a 5-second video?3 minute quick integration
Within minutes, you can start using live image, video, audio, and chat models.
- 1
Sign Up & Create Key
Register an account and generate your API key in the dashboard — no credit card required.
- 2
Update Configuration
Change the chat base URL for OpenAI-compatible calls, then use documented REST payloads for media and tool routes.
- 3
Start Calling Models
Access live model routes such as Gemini, Flux, Kling, Wan, Suno, and ElevenLabs through one unified API.
curl --request POST \
--url https://apiin.one/api/v1/chat/completions \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
"model": "gemini",
"messages": [
{
"role": "system",
"content": "You are a professional AI assistant."
},
{
"role": "user",
"content": "Tell me about the history of artificial intelligence."
}
]
}'Why teams choose API in One
One platform, clear pricing, real support — so you can focus on shipping.
Provider aggregation
Curated provider routes with clear model docs, usage, and billing visibility.
Transparent pricing
Per-token and per-call numbers you can forecast in spreadsheets.
One console
Keys, quotas, and usage across models live in a single dashboard.
Fast integration
Chat routes use OpenAI-compatible requests; media routes use documented REST async tasks.
Clear model costs
Each model shows credit cost, endpoint, and task behavior so teams can plan usage.
Human support
Engineers on chat when an integration or invoice needs attention.
FAQ
What is API in One and what does it offer?
API in One is a unified AI API platform for accessing live chat, image, video, audio, and tool model routes through a single API key, shared balance, and consistent billing console.
What AI models are available on API in One?
API in One includes model routes such as Gemini, Flux, GPT Image, Imagen, Kling, Wan, Hailuo, PixVerse, Suno, and ElevenLabs, all accessible through one unified API surface.
How does pricing compare to other API providers?
API in One shows each live model route with its credit cost and approximate USD value. Account top-up, orders, and credit balance continue through the shared dashboard.
How do I integrate the API in One API into my application?
Simple integration: 1) Sign up and create an API key, 2) update your base_url to API in One's endpoint, 3) start using the OpenAI-compatible request format where supported.
Why should I choose API in One over using model providers directly?
With API in One, you manage one account, one API key, one balance, and one billing path across supported model providers.
What programming languages are supported?
API in One works with any language that can make HTTPS requests. The docs include examples for cURL, Python, JavaScript, Go, Java, and PHP.
Are API keys secure and how should I use them?
Keep API keys in backend environment variables and call API in One from your server routes. Do not expose production keys in browser-side code.
Do you support invoices or enterprise billing?
Online billing is available for developers and teams. Contact support for enterprise purchasing, invoices, and higher-volume usage requirements.
Are requests used to train models?
API in One routes requests to model providers according to each model pipeline. Avoid sending sensitive data unless your internal compliance review approves the provider and model.
Ready to get started?
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