Integrate with Chatbox
Chatbox is an AI desktop client available on Windows, macOS, Linux, and mobile. It supports custom OpenAI-compatible APIs, so you can use LongCat models with simple configuration.
I. Prerequisites
Obtain your API Key from the LongCat Platform, and confirm on the Usage page that your account has sufficient token quota.
The LongCat API platform currently provides the following models:
| Model Name | API Format | Description |
|---|---|---|
| LongCat-2.5-Preview | OpenAI/Anthropic | High-performance agentic model |
| LongCat-2.0 | OpenAI/Anthropic | High-performance agentic model |
II. Download and Installation
Go to the Chatbox download page to get the installer for your platform:
| Platform | Format | System Requirements |
|---|---|---|
| Windows | Installer | Windows 10+ |
| macOS | DMG | macOS 10.15+ |
| Linux | AppImage / deb / rpm | — |
On mobile, search for "Chatbox" in the App Store or Google Play. The configuration steps are the same as on desktop.
III. Configure the LongCat API
- Open Chatbox, click "Settings" in the lower left corner, and select "Model Provider"
- Click "Add Provider" and select "OpenAI API Compatible"
- Fill in the configuration:
- API Host:
https://api.longcat.chat/openai/v1 - API Key: your LongCat API Key
- API Host:
- Click "Check" to verify the configuration
- Add the model ID:
LongCat-2.5-Preview
IV. Verify
Start a new chat, switch to LongCat-2.5-Preview in the model selector above the input box, and send a test message (e.g., "Hello, please introduce yourself"). If you receive a response from the LongCat model, the configuration is successful.