A minimal Model Context Protocol (MCP) server that provides current local datetime information. This server serves as a blueprint for building simple, single-purpose MCP servers.

• current-time: Get current local datetime in a simple single-line format

• Bun runtime

# Clone and navigate to project git clone <repository-url> cd mcp-datetime # Install dependencies bun install # Make executable chmod +x src/index.ts

bun run src/index.ts

Add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%/Claude/claude_desktop_config.json (Windows):

{ "mcpServers": { "datetime": { "command": "bun", "args": ["/absolute/path/to/mcp-datetime/src/index.ts"] } } }

{ "mcp": { "servers": { "datetime": { "command": "bun", "args": ["/absolute/path/to/mcp-datetime/src/index.ts"] } } } }

{ "tool": "current-time", "parameters": { "timezone": "America/New_York" } }

Response:

Monday, January 15, 2024 at 2:30:45 PM EST 

# Run server bun run src/index.ts # Run tests bun test # Build for production bun build src/index.ts --outdir=dist

src/ ├── index.ts # Main entry point ├── server/ │ └── datetime-server.ts # MCP server configuration ├── tools/ │ ├── current-time.ts # Current time tool │ └── current-time.test.ts # Unit tests ├── utils/ │ └── datetime-utils.ts # Shared utilities └── types/ └── datetime.types.ts # Type definitions 

This minimal server is designed to be easily extended:

1. Add new tools: Create src/tools/new-tool.ts and register in datetime-server.ts
2. Add resources: Create src/resources/new-resource.ts and register in datetime-server.ts
3. Add validation: Use Zod schemas for input validation
4. Add tests: Create .test.ts files alongside your tools

Run the test suite:

bun test

1. Permission Denied: Make sure src/index.ts is executable

   chmod +x src/index.ts

2. Timezone Issues: Ensure valid IANA timezone identifiers are used

MIT License - see LICENSE file for details.