MCP-WTIT (What Time Is It?)
A Model Context Protocol (MCP) server that provides current time in ISO8601 format with timezone support.
🚀 Features
- ⏰ Get current time with detailed information (ISO8601, timestamp, timezone)
- 🌍 Support for all IANA timezones
- 🎯 Optional milliseconds precision
- 🏗️ Clean Architecture design
- 📦 ESModules with TypeScript 5.6+
- ✅ Comprehensive test coverage
- 🔧 Type-safe with strict TypeScript configuration
📋 Requirements
- Node.js 18.0.0 or higher
- npm or yarn
🛠️ Installation
As a global package
# Install globally
npm install -g mcp-wtit
# Run the server
mcp-wtit
As a dependency
# Install as a dependency
npm install mcp-wtit
From source
# Clone the repository
git clone https://github.com/yorifuji/mcp-wtit.git
cd mcp-wtit
# Install dependencies
npm install
# Build the project
npm run build
# Run the server
npm start
🚦 Quick Start
For MCP Clients (Claude Desktop, etc.)
Add to your MCP client configuration:
If installed globally:
{
"mcpServers": {
"mcp-wtit": {
"command": "mcp-wtit"
}
}
}
If installed locally:
{
"mcpServers": {
"mcp-wtit": {
"command": "node",
"args": ["./node_modules/mcp-wtit/dist/index.js"]
}
}
}
From source:
{
"mcpServers": {
"mcp-wtit": {
"command": "node",
"args": ["/path/to/mcp-wtit/dist/index.js"]
}
}
}
Debug with MCP Inspector
MCP Inspector provides a web-based interface to test and debug your MCP server:
# Build the project first
npm run build
# Run with MCP Inspector
npm run inspect
This will:
- Start the MCP Inspector on http://localhost:6274
- Automatically open your browser
- Connect to the MCP server with debug capabilities
In the Inspector, you can:
- View available tools and their schemas
- Test tool calls with different parameters
- Monitor request/response communication
- Debug server behavior in real-time
For Development
# Run in development mode
npm run dev
# Run tests
npm test
# Run tests with coverage
npm run test:coverage
# Lint code
npm run lint
# Type check
npm run typecheck
📚 API Documentation
get_current_time
Get the current time with detailed information.
Parameters:
includeMilliseconds (boolean, optional): Include milliseconds in ISO8601 format (default: true)timezone (string, optional): Timezone for the time (default: "UTC")
Response:
{
"iso8601": "2024-01-15T10:30:45.123Z",
"timestamp": 1705315845123,
"timezone": "UTC"
}
🏛️ Architecture
This project follows Clean Architecture principles:
src/
├── domain/ # Business logic (no dependencies)
├── application/ # Use cases
├── infrastructure/ # External interfaces (MCP)
├── shared/ # Shared types and utilities
└── di/ # Dependency injection
See Architecture Documentation for details.
🧪 Testing
Tests are located in the tests/ directory and use Vitest:
# Run all tests
npm test
# Run tests in watch mode
npm run test:watch
# Generate coverage report
npm run test:coverage
📦 Scripts
| Script | Description |
|---|
npm run build | Build the TypeScript project |
npm run dev | Run in development mode |
npm start | Run the built server |
npm run inspect | Debug with MCP Inspector |
npm test | Run tests |
npm run test:watch | Run tests in watch mode |
npm run test:coverage | Run tests with coverage report |
npm run lint | Run ESLint |
npm run lint:fix | Run ESLint and fix issues |
npm run typecheck | Run TypeScript type checking |
🤝 Contributing
- Fork the repository
- Create your feature branch (
git checkout -b feature/amazing-feature) - Commit your changes (
git commit -m 'Add some amazing feature') - Push to the branch (
git push origin feature/amazing-feature) - Open a Pull Request
📄 License
This project is licensed under the MIT License - see the LICENSE file for details.
🙏 Acknowledgments
📦 NPM Package
Published on npm: mcp-wtit