Faker Server

MCP server to get fake strings

This is a TypeScript-based MCP server that provides tools for generating fake data using Faker.js. It demonstrates core MCP concepts by providing:

• Tools for generating various types of fake data (person, lorem, internet, etc.)
• Support for different locales for internationalization
• Customizable options for each data type

Features

Tools

• generate_person - Generate fake person data (names, job titles, etc.)
• generate_lorem - Generate fake lorem ipsum text
• generate_internet - Generate fake internet data (emails, usernames, URLs, etc.)
• generate_date - Generate fake dates
• generate_commerce - Generate fake commerce data (products, prices, etc.)
• And many more modules from Faker.js

Features

• Support for multiple locales (en, ja, fr, etc.)
• Customizable field selection for each data type
• Configurable parameters (length, count, min/max values, etc.)

Development

Install dependencies:

npm install

Build the server:

npm run build

For development with auto-rebuild:

npm run watch

Testing

Run all tests:

npm test

Run tests in watch mode:

npm run test:watch

Run integration tests specifically:

npm run test:integration

Generate test coverage report:

npm run test:coverage

Installation

To use with Claude Desktop, add the server config:

On MacOS: ~/Library/Application Support/Claude/claude_desktop_config.json On Windows: %APPDATA%/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "faker-server": {
      "command": "/path/to/faker-server/build/index.js"
    }
  }
}

Debugging

Since MCP servers communicate over stdio, debugging can be challenging. We recommend using the MCP Inspector, which is available as a package script:

npm run inspector

The Inspector will provide a URL to access debugging tools in your browser.