Which integrations are available for this server?

Provides integration with Google Stitch to automate web design tasks such as creating screens from text prompts, analyzing accessibility compliance, and exporting design systems. Allows for the management and activation of the Stitch API within Google Cloud projects, providing tools for automated UI design generation and project container management.

How do I use Auto Stitch MCP?

1. Click on "Install Server". 2. Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state. 3. In the chat, type @ followed by the MCP server name and your instructions, e.g., "@Auto Stitch MCP Design a modern landing page for a coffee shop with a hero section and menu" That's it! The server will respond to your query, and you can continue using it as needed. Here is a step-by-step guide with screenshots.

Auto Stitch MCP

English | 한국어

Just let AI handle everything. - AI에게 모든 걸 맡기세요.

💡 Just share this link with your AI: https://github.com/GreenSheep01201/auto-stitch-mcp

One command setup, instant UI design generation. The most automated MCP server for Google Stitch.

Features:

Auto Setup - One command installs everything (gcloud auth, API enable, MCP config)
Multi-CLI Support - Works with Claude Code, Gemini CLI, Codex CLI
19 Professional Tools - Design generation, accessibility checks, design system export
5 Workflow Commands - /design, /design-system, /design-flow, /design-qa, /design-export
🌐 i18n Support (v1.1.0) - Auto-detects system language (English/Korean) for setup wizard and console messages

Prerequisites (Install These First)

1. Install Node.js (v18 or higher)

Windows

# Using winget (Windows 10/11)
winget install OpenJS.NodeJS.LTS

# Or download installer from: https://nodejs.org/

macOS

# Using Homebrew
brew install node@22

# Or download installer from: https://nodejs.org/

Linux / WSL

# Using nvm (recommended)
curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.1/install.sh | bash
source ~/.bashrc
nvm install 22
nvm use 22

# Or using apt (Ubuntu/Debian)
curl -fsSL https://deb.nodesource.com/setup_22.x | sudo -E bash -
sudo apt-get install -y nodejs

Verify Node.js installation:

node --version   # Should show v18.x.x or higher
npm --version    # Should show 9.x.x or higher

2. Install Google Cloud CLI (gcloud)

Windows

Option A: Installer (Recommended)

Download from Google Cloud SDK
Run the installer (check "Run gcloud init" option)
Restart your terminal

Option B: PowerShell

(New-Object Net.WebClient).DownloadFile("https://dl.google.com/dl/cloudsdk/channels/rapid/GoogleCloudSDKInstaller.exe", "$env:TEMP\gcloud.exe")
Start-Process "$env:TEMP\gcloud.exe" -Wait
# Restart terminal after installation

macOS

# Using Homebrew (Recommended)
brew install --cask google-cloud-sdk

# Or direct install
curl https://sdk.cloud.google.com | bash
exec -l $SHELL

Linux / WSL

# Download and install
curl -sSL https://sdk.cloud.google.com | bash -s -- --disable-prompts --install-dir=$HOME

# Add to PATH
echo 'export PATH="$HOME/google-cloud-sdk/bin:$PATH"' >> ~/.bashrc
source ~/.bashrc

Verify gcloud installation:

gcloud --version
# Should show: Google Cloud SDK xxx.x.x

Quick Start

After installing Node.js and gcloud CLI:

npx -p auto-stitch-mcp auto-stitch-mcp-setup

The setup wizard will:

Open a web-based setup page at http://localhost:51121
Guide you through Google login
Help you select or create a project
Enable the Stitch API
Save your configuration

🤖 AI Agent Note (WSL Environment): If running in WSL, the browser cannot open automatically. You MUST open the URL in Windows browser using PowerShell:
# Run this in PowerShell (not WSL terminal)
Start-Process "http://localhost:51121"
Or instruct the user to manually open http://localhost:51121 in their Windows browser.

Manual Installation (Alternative)

Step 1: Run Auto Setup

npx -p auto-stitch-mcp auto-stitch-mcp-setup

Or if you cloned the repository:

node setup.js

Setup Process

Welcome Page - Click "Login with Google" button
Google Login - A new browser window opens for authentication
- After login, you may see "Connection refused" page - just close it
- The setup page will automatically detect your login
Project Selection - Choose an existing project or create a new one
API Activation - Click the button to enable Stitch API
- Wait for activation (may take a few seconds)
Complete - Copy the MCP configuration to your editor

⚠️ WSL Users - IMPORTANT: WSL cannot open browsers directly. When the setup wizard starts:
Copy the URL http://localhost:51121
Open it manually in your Windows browser (Chrome, Edge, etc.)
Or run in PowerShell: Start-Process "http://localhost:51121"
The authentication will work because WSL shares localhost with Windows.

Step 3: Configure MCP Client

After setup completes, add the configuration to your MCP client.

Claude Desktop

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "stitch": {
      "command": "npx",
      "args": ["-y", "auto-stitch-mcp"],
      "env": {
        "GOOGLE_CLOUD_PROJECT": "YOUR_PROJECT_ID"
      }
    }
  }
}

Claude Code

Create .mcp.json in your project root:

{
  "mcpServers": {
    "stitch": {
      "command": "npx",
      "args": ["-y", "auto-stitch-mcp"],
      "env": {
        "GOOGLE_CLOUD_PROJECT": "YOUR_PROJECT_ID"
      }
    }
  }
}

Cursor

Go to Settings > MCP > Add New Server and add:

Command: npx
Args: -y auto-stitch-mcp
Environment: GOOGLE_CLOUD_PROJECT=YOUR_PROJECT_ID

Available Tools

Core Stitch API Tools

Tool	Description
`create_project`	Creates a new Stitch project. A project is a container for UI designs and frontend code.
`get_project`	Retrieves the details of a specific Stitch project using its project name.
`list_projects`	Lists all Stitch projects accessible to the user. By default, it lists projects owned by the user.
`list_screens`	Lists all screens within a given Stitch project.
`get_screen`	Retrieves the details of a specific screen within a project.
`generate_screen_from_text`	Generates a new screen within a project from a text prompt.
`fetch_screen_code`	Retrieves the actual HTML/Code content of a screen.
`fetch_screen_image`	Retrieves the screenshot/preview image of a screen.

🎨 Professional Web Design Tools (v3.0+)

Design Consistency Tools

Tool	Description
`extract_design_context`	Extracts design DNA (colors, typography, spacing, components) from an existing screen for visual consistency across multiple screens.
`apply_design_context`	Generates a new screen using a previously extracted design context to maintain visual consistency.
`compare_designs`	Compares two screens to identify design differences, inconsistencies, and suggest harmonization.

Productivity Tools

Tool	Description
`generate_design_tokens`	Generates design tokens (CSS variables, Tailwind config, SCSS, JSON) from a screen's design.
`generate_responsive_variant`	Creates responsive variants of an existing screen for different device types.
`batch_generate_screens`	Generates multiple related screens in a single operation with consistent design.

Quality & Analysis Tools

Tool	Description
`analyze_accessibility`	Analyzes a screen for WCAG 2.1 accessibility compliance with actionable recommendations.
`extract_components`	Extracts reusable UI component patterns (buttons, cards, forms) with their styles.

Design Enhancement Tools

Tool	Description
`suggest_trending_design`	Applies 2024-2025 UI trends (glassmorphism, bento-grid, gradient-mesh, etc.) to screen generation.
`generate_style_guide`	Generates a comprehensive style guide/design documentation from an existing design.
`export_design_system`	Exports a complete design system package (tokens, components, docs) for developer handoff.

MCP Prompts (Auto-Discovered)

MCP Prompts are automatically available when the server is connected - no installation required. These appear in your MCP client's prompt list.

Prompt	Description
`/stitch:design`	Smart UI design generation with automatic style detection
`/stitch:design-system`	Create new screens while maintaining design consistency
`/stitch:design-flow`	Generate multiple screens for complete user flows
`/stitch:design-qa`	Accessibility (WCAG 2.1) and design quality checks
`/stitch:design-export`	Export design system packages for developer handoff

Usage in Claude Code:

/stitch:design login page with dark mode
/stitch:design-system settings page
/stitch:design-flow onboarding: welcome -> signup -> complete
/stitch:design-qa all --level AA
/stitch:design-export --token_format tailwind

Note: MCP Prompts include detailed workflow instructions that guide the AI through complex design tasks automatically.

Custom Commands (Multi-CLI Support)

When you run npx -p auto-stitch-mcp auto-stitch-mcp-setup, the setup wizard automatically installs custom commands for all major AI CLI tools - Claude Code, Gemini CLI, and Codex CLI.

Supported CLIs

CLI	Command Format	Installation Path
Claude Code	`/design`	`~/.claude/commands/`
Gemini CLI	`/stitch:design`	`~/.gemini/commands/stitch/`
Codex CLI	`$stitch-design`	`~/.codex/skills/stitch/`

Available Commands

Command	Claude Code	Gemini CLI	Codex CLI	Description
design	`/design`	`/stitch:design`	`$stitch-design`	Smart UI design generation
design-system	`/design-system`	`/stitch:design-system`	`$stitch-design-system`	Maintain design consistency
design-flow	`/design-flow`	`/stitch:design-flow`	`$stitch-design-flow`	Generate user flows
design-qa	`/design-qa`	`/stitch:design-qa`	`$stitch-design-qa`	Accessibility & quality checks
design-export	`/design-export`	`/stitch:design-export`	`$stitch-design-export`	Export design system

Usage Examples

Claude Code:

/design login page dark mode
/design-system settings page
/design-flow onboarding: welcome -> signup -> complete

Gemini CLI:

/stitch:design login page dark mode
/stitch:design-system settings page
/stitch:design-flow onboarding: welcome -> signup -> complete

Codex CLI:

$stitch-design login page dark mode
$stitch-design-system settings page
$stitch-design-flow onboarding: welcome -> signup -> complete

Commands Installation Location

Commands are automatically installed to all CLI directories:

~/.claude/commands/          # Claude Code (Markdown)
├── design.md
├── design-system.md
├── design-flow.md
├── design-qa.md
└── design-export.md

~/.gemini/commands/stitch/   # Gemini CLI (TOML)
├── design.toml
├── design-system.toml
├── design-flow.toml
├── design-qa.toml
└── design-export.toml

~/.codex/skills/stitch/      # Codex CLI (Skills)
├── design.md
├── design-system.md
├── design-flow.md
├── design-qa.md
└── design-export.md

Usage Examples

Create a New Project

Create a new Stitch project called "My App"

Generate a Screen

Generate a login page with email and password fields,
a "Forgot Password" link, and social login buttons for Google and Apple.
Use a modern gradient background.

Generate with Specific Style

Create a dashboard screen with:
- Dark theme
- Sidebar navigation
- 4 stat cards at the top
- A line chart showing weekly data
- A recent activity list

Multi-language Support

Create a Korean e-commerce product detail page with:
- Product image carousel
- Price and discount badge
- Size selector
- Add to cart button
- Customer reviews section

The "Designer Flow"

For consistent UI across multiple screens:

Extract context from existing screen:

Get the design context from the Home Screen in project X

Generate new screen with same style:

Using that design context, generate a Settings screen
with the same visual style

Using Design Tokens

Export design tokens for your development workflow:

Generate CSS variables from the dashboard screen's design

Create a Tailwind config based on the home screen

Apply modern UI/UX trends automatically:

Create a pricing page with glassmorphism and gradient-mesh effects

Design a dashboard using bento-grid layout and dark mode

Batch Screen Generation

Create multiple screens at once with consistent styling:

Generate a complete onboarding flow: welcome, features, signup, and confirmation screens

Accessibility Check

Ensure your designs are accessible:

Check the login page for WCAG AA compliance

Design System Export

Export for developer handoff:

Export the complete design system from this project including tokens and components

Troubleshooting

"gcloud: command not found"

Linux/macOS/WSL:

export PATH="$HOME/google-cloud-sdk/bin:$PATH"
echo 'export PATH="$HOME/google-cloud-sdk/bin:$PATH"' >> ~/.bashrc

Windows: Restart your terminal after installing gcloud.

"Stitch API has not been used in project" Error

Enable the API manually:

gcloud services enable stitch.googleapis.com --project=YOUR_PROJECT_ID

Or visit: https://console.cloud.google.com/apis/library/stitch.googleapis.com?project=YOUR_PROJECT_ID

Token Expired / Authentication Error

Refresh your authentication:

gcloud auth login

Or re-run the setup:

npx -p auto-stitch-mcp auto-stitch-mcp-setup

This is normal behavior. After Google authentication completes, the browser redirects to localhost:8085 which is a temporary callback server that gcloud uses. Once authentication is complete, this server closes.

Solution: Simply close this tab and return to the setup page. It will automatically detect your login.

Browser Doesn't Open Automatically (WSL)

If the browser doesn't open automatically in WSL:

Copy the URL shown in the terminal
Paste it in your Windows browser manually
Complete the login
Return to the setup page

Full Reset

If something goes wrong, reset everything:

# Remove auto-stitch-mcp config
rm -rf ~/.auto-stitch-mcp

# Revoke gcloud credentials
gcloud auth revoke --all

# Re-run setup
npx -p auto-stitch-mcp auto-stitch-mcp-setup

Architecture

┌──────────────────────────────────────────────────────────────┐
│                        User Request                          │
│              "Create a login page with..."                   │
└──────────────────────────────────────────────────────────────┘
                              │
                              ▼
┌──────────────────────────────────────────────────────────────┐
│                    AI Editor (Claude/Cursor)                 │
│                         MCP Client                           │
└──────────────────────────────────────────────────────────────┘
                              │
                              ▼
┌──────────────────────────────────────────────────────────────┐
│                     auto-stitch-mcp                          │
│  ┌─────────────┐  ┌─────────────┐  ┌─────────────┐          │
│  │ setup.js    │  │ index.js    │  │ auth.js     │          │
│  │ (Auto Setup)│  │ (MCP Server)│  │ (OAuth)     │          │
│  └─────────────┘  └─────────────┘  └─────────────┘          │
└──────────────────────────────────────────────────────────────┘
                              │
                              ▼
┌──────────────────────────────────────────────────────────────┐
│                    Google Cloud Platform                     │
│  ┌─────────────┐  ┌─────────────┐  ┌─────────────┐          │
│  │ gcloud CLI  │  │ OAuth 2.0   │  │ Stitch API  │          │
│  │ (Auth)      │  │ (Token)     │  │ (UI Gen)    │          │
│  └─────────────┘  └─────────────┘  └─────────────┘          │
└──────────────────────────────────────────────────────────────┘

File Structure

auto-stitch-mcp/
├── index.js          # Main MCP server
├── setup.js          # Web-based auto setup wizard
├── auth.js           # OAuth helper utilities
├── package.json      # Dependencies and scripts
├── README.md         # This documentation
└── skills/           # Claude Code Skills
    ├── design.md
    ├── design-system.md
    ├── design-flow.md
    ├── design-qa.md
    └── design-export.md

Configuration Files

File/Directory	Location	Purpose
`tokens.json`	`~/.auto-stitch-mcp/`	OAuth access tokens
`config.json`	`~/.auto-stitch-mcp/`	Project settings
`commands/`	`~/.claude/commands/`	Claude Code Commands (auto-installed)
`commands/stitch/`	`~/.gemini/commands/stitch/`	Gemini CLI Commands (auto-installed)
`skills/stitch/`	`~/.codex/skills/stitch/`	Codex CLI Skills (auto-installed)

Scripts

Command	Description
`npx -p auto-stitch-mcp auto-stitch-mcp-setup`	Run interactive setup wizard
`npx auto-stitch-mcp`	Start MCP server (used by editors)
`node auth.js --status`	Check authentication status
`node auth.js --login`	Manual login
`node auth.js --logout`	Clear saved tokens

Requirements

Node.js: 18.0.0 or higher
Google Cloud CLI: Latest version
Google Account: With access to Google Cloud Console
MCP Client: Claude Desktop, Claude Code, Cursor, or compatible editor

License

Apache 2.0 - Open source and free to use.

Credits

Author: greensheep01201 (Seo Won-gil)

Support

Issues: GitHub Issues
Documentation: Google Stitch API

Built with love for the AI community

Auto Stitch MCP

Table of Contents

Prerequisites (Install These First)

1. Install Node.js (v18 or higher)

Windows

macOS

Linux / WSL

2. Install Google Cloud CLI (gcloud)

Windows

macOS

Linux / WSL

Quick Start

Manual Installation (Alternative)

Step 1: Run Auto Setup

Setup Process

Step 3: Configure MCP Client

Claude Desktop

Claude Code

Cursor

Available Tools

Core Stitch API Tools

🎨 Professional Web Design Tools (v3.0+)

Design Consistency Tools

Productivity Tools

Quality & Analysis Tools

Design Enhancement Tools

MCP Prompts (Auto-Discovered)

Custom Commands (Multi-CLI Support)

Supported CLIs

Available Commands

Usage Examples

Commands Installation Location

Usage Examples

Create a New Project

Generate a Screen

Generate with Specific Style

Multi-language Support

The "Designer Flow"

Using Design Tokens

Trending Design Generation

Batch Screen Generation

Accessibility Check

Design System Export

Troubleshooting

"gcloud: command not found"

"Stitch API has not been used in project" Error

Token Expired / Authentication Error

"Connection Refused" After Google Login

Browser Doesn't Open Automatically (WSL)

Full Reset

Architecture

File Structure

Configuration Files

Scripts

Requirements

License

Credits

Support

Resources

Latest Blog Posts

MCP directory API