OpenCode

Using LongCat Models for AI Programming in OpenCode

Overview

LongCat series models are supported for use in OpenCode. This document describes how to integrate OpenCode with the LongCat API Open Platform.

Prerequisites

Install OpenCode CLI

• Install OpenCode using curl

curl -fsSL https://opencode.ai/install | bash

• Install OpenCode using npm

npm i -g opencode-ai

Configure LongCat API

1. Run the authentication command

opencode auth login

2. Select Provider

Select the provider as Other, and enter LongCat

3. Enter API KEY

Enter any content; it will be configured later in the config file

4. File Configuration

Open the OpenCode configuration directory

- macOS / Linux: ~/.config/opencode/

- Windows: Users\***\.config\opencode

Create or edit the configuration file in that directory: opencode.json

opencode.json content

{
  "$schema": "https://opencode.ai/config.json",
  "provider": {
    "LongCat": {
      "npm": "@ai-sdk/openai-compatible",
      "name": "LongCat",
      "options": {
        "baseURL": "https://api.longcat.chat/openai",
        "apiKey": "YOUR_API_KEY"
      },
      "models": {
        "LongCat-2.0-Preview": {
          "name": "LongCat-2.0-Preview"
        }
      }
    }
  }
}

Supported Models

Test CodingCode

Go back to the command line interface and type opencode to start using it

Use /models to switch the model to LongCat-2.0-Preview

Then enter your question and start the conversation