Junie CLI

This documentation is provided for informational purposes only and demonstrates how to configure and use our API with third-party AI chat interfaces. Any third-party software, websites, or services mentioned are not operated, controlled, or endorsed by us.

Introduction to Junie CLI

An LLM-agnostic coding agent built for real-world development — by JetBrains.

Junie is an AI coding agent that lives in your terminal, integrates with your IDE and CI/CD pipelines, and helps you ship code faster. Give it a task in natural language — fix a bug, implement a feature, review a PR — and Junie handles the rest. Like your real coding buddy.

Junie CLI Key Features:

• AI coding agent in terminal
• Multi-model (OpenAI, Anthropic, etc.)
• Real-time interactive tasks
• Deep codebase understanding
• Plan mode (safe preview)
• Command execution & automation
• CI/CD & Git integration
• Extensible (custom commands, MCP)

Step

1. Install Junie CLI

   CLI - Node.js

   Windows users may be unable to run scripts because of digital signature requirements. Please run the following command:
   Windows PowerShell:

   Set-ExecutionPolicy -Scope CurrentUser -ExecutionPolicy RemoteSigned -Force
   

   Firstly, install the newest LTS version of Node.js, and then use npm to install it globally in the terminal:

   npm install -g @jetbrains/junie
   

   CLI - Native Install

   macOS, Linux:

   curl -fsSL https://junie.jetbrains.com/install.sh | bash
   

   Windows PowerShell:

   powershell -NoProfile -ExecutionPolicy Bypass -Command "iex (irm 'https://junie.jetbrains.com/install.ps1')"
   
2. Configure Junie CLI

   Edit or create x6.json file

   On macOS & Linux: ~/.junie/models/x6.json

   On Windows: C:\Users\<USERNAME>\.junie\models\x6.json

   Make sure to replace <X6_API_KEY> with your API key from x6.ai. When replacing it, do not keep the angle brackets < and >.

   {
     "baseUrl": "https://api.x6.ai/v1/chat/completions",
     "id": "claude-sonnet-4-6",
     "apiKey": "<X6_API_KEY>",
     "apiType": "OpenAICompletion",
     "primaryModel": {
       "id": "claude-sonnet-4-6"
     },
     "fasterModel": {
       "id": "claude-sonnet-4-6"
     }
   }
   

   You can replace the “id” field with any model that is compatible with the OpenAI format:

   
3. First launch

   Windows users may encounter issues running the software due to missing VC runtime libraries. Please download and install this software.

   Navigate to the root directory of the project where you want to use Junie CLI and run :

   junie --model custom:x6
   

   Now you can use Junie.

   
4. 💡 Quick Examples

   Build a new project

   junie
   > Build a web dashboard that shows open issues, recent commits, and CI status for this repository
   

   Analyze a project

   junie
   > Review the current changes in this branch and highlight potential bugs, performance issues, and missing tests
   

   Fix bugs

   junie
   > Fix the failing tests in the auth module and add a regression test
   

   See the full documentation and supported features on the official documentation page.

5. 🐙 GitHub integration

   To set up a GitHub Action to let Junie respond to issues, PRs, and CI failures automatically, simply run this command inside the agent:

   /install-github-action
   

   See the full cookbook: Junie on GitHub.