Claude Code ChatInWindows MCP Server

Claude Code GUI / ChatUI for VS Code

Claude Code ChatUI is a full-featured GUI extension for Claude Code CLI in VS Code and Cursor. Works natively on Windows (no WSL required) and macOS. Supports both official Anthropic accounts and third-party API providers with GUI configuration. Key features: MCP plugin management, Skills system, Hooks system, real-time token & cost tracking, AI Assistant integration (Gemini + Grok), and multi-language UI (English, 简体中文, 繁體中文). Actively maintained with 236+ commits.

<div align="center"> <img src="icon.png" alt="Claude Code Chat Icon" width="128" height="128"> <!-- Badges -->

<a href="https://marketplace.visualstudio.com/items?itemName=lkbaba.claude-code-chatui"><img src="https://img.shields.io/visual-studio-marketplace/i/lkbaba.claude-code-chatui" alt="VS Code Marketplace Installs"></a> <a href="https://github.com/LKbaba/Claude-code-ChatInWindows"><img src="https://img.shields.io/github/stars/LKbaba/Claude-code-ChatInWindows.svg" alt="GitHub Stars"></a> <a href="https://code.visualstudio.com/"><img src="https://img.shields.io/badge/VS%20Code-%E2%89%A51.94-blue" alt="VS Code ≥ 1.94"></a> <a href="LICENSE"><img src="https://img.shields.io/badge/License-MIT-green" alt="MIT License"></a> <a href="https://www.microsoft.com/windows"><img src="https://img.shields.io/badge/Windows-10%20%7C%2011-blue" alt="Windows 10/11"></a> <a href="https://www.apple.com/macos/"><img src="https://img.shields.io/badge/macOS-Supported-blue" alt="macOS Supported"></a> <a href="https://cursor.sh/"><img src="https://img.shields.io/badge/Cursor-Ready-purple" alt="Cursor Ready"></a>

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🌐 Languages: English | 简体中文 | 繁體中文

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Why This Extension?

Feature	Official Claude Code	Claude Code GUI (MaheshKok)	Claude Code UI (AuraTech)	This Project
Windows No WSL	❌ Requires setup	❌ Requires CLI config	WSL path mapping	✅ Native
Third-party API GUI Config	❌	❌	❌	✅ Exclusive
MCP Plugin GUI Management	CLI-level only	✅ MCP Hub	✅ MCP commands	✅ GUI config (Global + Workspace)
Skills System GUI	CLI-level only	❌	❌	✅ Exclusive
Hooks System GUI	CLI-level only	❌	❌	✅ Exclusive
AI Assistant Integration	❌	❌	❌	✅ Gemini + Grok
Real-time Token Tracking	❌	✅ Usage meter	✅ Cost tracking	✅
macOS Support	✅	✅	✅	✅
npm + Native Installer	✅	✅	✅	✅
Actively Maintained	✅	✅	✅	✅ (236+ commits)

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📸 Preview

📅 Recent Updates

Version	Date	Highlights
v4.1.8	2026-09-25	Model Config: show/hide models and set effort per model (Auto/Low/Med/High/xHigh/Max), works even when CLAUDE_CODE_EFFORT_LEVEL is set; 5h limit ring with reset time; Opus 5 / Opus 4.7 back; Codex switch (codex exec) replaces the broken Codex MCP template — delete old codex-official servers; MCP keys no longer written in plaintext; temp MCP folders cleaned up; restore checkpoint with Undo
v4.1.7	2026-09-25	Opus 5.5 model (1M context); fixed appended system prompt never reaching the model on Windows (runtime constraints + MCP prompts were dropped since v4.1.5); Todo checklist restored on new models + Task Tracking prompt; icons for new CLI tools (PowerShell, LSP, Monitor, Workflow, Task*); removed DEP0190 warning; Sonnet 5 price $2/$10
v4.1.6	2026-09-23	Fable 5.1 model (1M context, [1m] injection); fixed global MCP servers dropping to project level when toggling API endpoint / changing settings; API Key Clear button + masked preview & plaintext toggle; hid Opus 4.7 from selector; removed dead MCP config-target mechanism
v4.1.5	2026-08-16	Headless runtime constraints prompt — tells the model the CLI exits after each reply, so background processes/timers/polling loops don't survive across turns; steers long tasks toward OS schedulers or file-persisted progress
v4.1.4	2026-07-19	Fable 5 & Sonnet 5 models; real 1M context via [1m] + env (400K default window, fixes indicator stuck at 16-18%); statistics 30× faster (worker pool + disk cache); Opus 4.8 leaked tool-call auto-retry
v4.1.3	2026-06-02	Claude Opus 4.8 model support; Opus 4.7 demoted to Previous; Opus 4.5 hidden from UI (kept for history & pricing)
v4.1.1	2026-04-21	Gemini Vertex AI ADC mode; MCP env backfill fix (APPDATA/PATH/proxy); Windows node stdio wrapper fix; hierarchical auth UI
v4.1.0	2026-04-16	Opus 4.7 model support; xHigh thinking intensity; /ultrareview command; Compute Mode restore bug fix
v4.0.10	2026-04-13	Cursor history crash fix; history panel XSS fix
v4.0.9	2026-04-02	Project metadata & README rewrite for AI search discoverability
v4.0.8	2026-04-02	Codex MCP template, CLAUDE.md conditional injection
v4.0.7	2026-04-02	Stream parser upgrade: 6 bug fixes, new CLI message types
v4.0.5	2026-03-30	AI Assistant Panel: Grok + Vertex AI support; macOS scroll fix
v4.0.2	2026-03-28	Hooks GUI management panel with 26 event types, 4 hook types, 5 templates
v3.1.9	2026-03-29	CSP security policy, XSS fixes, Windows orphan process cleanup
v3.1.8	2026-03-12	Grok MCP template, default model → Sonnet 4.6, cost bubble dedup
v3.1.7	2026-02-18	Claude Sonnet 4.6 model support, Compute Mode upgrade
v3.1.4	2026-01-29	macOS platform support added
v3.1.0	2026-01-13	Skills panel: copy, enable/disable toggle, plugin protection
v2.1.0	—	MCP integration, HTTP/SSE transport, server templates
v2.0.0	—	Complete UI redesign, statistics dashboard, custom API endpoint

See CHANGELOG.md for full details.

🚀 Quick Start

Step 1: Environment Setup

1. Install Git for Windows (includes Git Bash)
2. Install Node.js (LTS version recommended, ≥ 18)
3. Open PowerShell as Administrator and set environment variable:

setx SHELL "C:\Program Files\Git\bin\bash.exe"

4. Restart your computer (required for changes to take effect)

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Step 2: Install Claude Code CLI

After restarting, open a new terminal window:

npm install -g @anthropic-ai/claude-code

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⚠️ VPN Users: Please ensure TUN mode is enabled throughout the installation and usage process, otherwise you may not be able to connect to Claude services.

Step 3: Log in to Claude Code

Using Official Account

claude

A browser window will open for authorization. Log in and copy the token back to the terminal.

Using 🔑 Third-Party API

If you're using a third-party API, configure it in the extension:

1. Press Ctrl+Shift+C to open the chat interface
2. Click the settings button ⚙️ in the top right corner
3. Check "Use Custom API Endpoint"
4. Enter your API key in the API Key field (e.g., sk-ant-xxxxxxxxxx)
5. Enter the API address in the Base URL field (e.g., https://v3.codesome.cn)
6. Settings are saved automatically. "Settings updated successfully" confirms the configuration

Switch back to official account: Uncheck "Use Custom API Endpoint".

💡 Tips:

• If the API key is incorrect, chat will show "processing" until timeout
• You can switch between official account and third-party API anytime via the toggle

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💡 This extension supports various third-party API services (e.g., v3.codesome.cn, openrouter.ai). Please consult your API provider for the specific URL.

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Step 4: Install the Extension

✨ Method 1: VS Code Marketplace (Recommended)

1. Open VS Code or Cursor
2. Press Ctrl+Shift+X to open Extensions
3. Search for Claude-Code ChatUI or lkbaba
4. Click Install

Direct Link: ➡️ VS Code Marketplace

📦 Method 2: GitHub Release Download

1. 🔗 Go to Releases page
2. Download the .vsix file
3. In VS Code, press Ctrl+Shift+P, select "Extensions: Install from VSIX..."

🛠️ Method 3: Build from Source

git clone https://github.com/LKbaba/Claude-code-ChatInWindows.git
cd Claude-code-ChatInWindows
npm install
npm run package
# The generated .vsix file is in the project root, install using Method 2

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Step 5: Start Using

• Open Chat Interface: Press Ctrl+Shift+C
• File Explorer Icon: Click the icon next to the new folder button

❓ FAQ

<details> <summary><strong>Q: Getting "No suitable shell found" error?</strong></summary>

1. Make sure Git for Windows is installed
2. Run as administrator: setx SHELL "C:\Program Files\Git\bin\bash.exe"
3. Restart your computer (required for changes to take effect)

If the problem persists, try:

1. Open system environment variables (Win + X → System → Advanced system settings → Environment Variables)
2. Ensure PATH contains C:\Program Files\Git\cmd
3. Restart your computer

</details> <details> <summary><strong>Q: Third-party API configured but chat not responding?</strong></summary>

Claude Code CLI sometimes needs to be initialized in the command line first. Run in PowerShell:

Set-ExecutionPolicy -Scope Process -ExecutionPolicy Bypass -Force
$Env:ANTHROPIC_API_KEY  = "sk-xxxxxxxxxxxxxxxxxxxxxxxx"
$Env:ANTHROPIC_BASE_URL = "https://v3.codesome.cn"
claude

If the problem persists, try updating Claude Code CLI:

npm install -g @anthropic-ai/claude-code@latest

</details> <details> <summary><strong>Q: Third-party API stops working after computer restart?</strong></summary>

Environment variables $Env:ANTHROPIC_API_KEY and $Env:ANTHROPIC_BASE_URL are temporary and will be lost after restart.

Two solutions:

Option 1: Reset after each restart

$Env:ANTHROPIC_API_KEY  = "your API Key"
$Env:ANTHROPIC_BASE_URL = "https://v3.codesome.cn"
claude

Option 2: Set as permanent environment variables (run as administrator)

setx ANTHROPIC_API_KEY "your API Key"
setx ANTHROPIC_BASE_URL "https://v3.codesome.cn"
# Restart computer for changes to take effect

</details> <details> <summary><strong>Q: Getting "rg: command not found" error?</strong></summary>

This is optional and doesn't affect normal usage. If you want to install ripgrep for better search performance:

# In Git Bash:
curl -L https://github.com/BurntSushi/ripgrep/releases/download/14.1.0/ripgrep-14.1.0-x86_64-pc-windows-msvc.zip -o ripgrep.zip
unzip ripgrep.zip && mkdir -p ~/bin
cp ripgrep-14.1.0-x86_64-pc-windows-msvc/rg.exe ~/bin/
echo 'alias rg="~/bin/rg"' >> ~/.bashrc && source ~/.bashrc

Note: The extension's built-in Grep tool works fine without ripgrep.

</details> <details> <summary><strong>Q: Getting "File has been unexpectedly modified" error when Claude edits files?</strong></summary>

This error occurs when VS Code/Cursor's auto-save feature modifies files between Claude's Read and Edit operations.

Solution: Disable auto-save

Add this to your VS Code/Cursor settings (settings.json):

"files.autoSave": "off"

Or use a less aggressive option:

"files.autoSave": "onWindowChange"

Why this happens:

1. Claude reads a file and stores its content hash
2. Auto-save triggers and modifies the file on disk
3. Claude tries to edit the file, but the hash no longer matches
4. Claude reports "File has been unexpectedly modified"

Other settings that can cause this issue:

• editor.formatOnSave: true - Formatters modify file content on save
• files.trimTrailingWhitespace: true - Removes trailing spaces on save
• files.insertFinalNewline: true - Adds newline at end of file

If you need these features, consider disabling them temporarily when using Claude Code.

</details>

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🤝 How to Contribute

1. Fork the project and create a feature branch
2. Focus on a single new feature or improvement
3. Test thoroughly on a real Windows environment
4. Submit a Pull Request with clear description

Welcome all AI engineers, developers, and geeks on Windows!

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📝 License

This project is licensed under the MIT License. See LICENSE for details.

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🙏 Acknowledgments

• andrepimenta – Original project claude-code-chat
• Mrasxieyang (linux.do community) – Provided the core solution for native Windows installation
• Anthropic – For creating the powerful Claude and Claude Code
• All developers contributing to the Claude Code ecosystem ❤️