Polyglot - Model Contexts Protocol for Translation

Polyglot is an open-source implementation of the Model Contexts Protocol (MCP) focused on translation services. It provides a standardized way to handle translation requests across multiple languages using Claude Sonnet 3.5.

Supported Languages

Arabic (ar)
Chinese (zh)
English (en)
French (fr)
Russian (ru)
Spanish (es)

Related MCP server: Lara Translate MCP Server

Features

Standardized translation request format
Support for multiple domains (legal, medical, general)
Formality level control (formal/informal)
Claude Sonnet 3.5 integration
MCP protocol server (via FastMCP)
API key authentication

Installation

Using uv (Recommended)

# Install uv if you haven't already curl -LsSf https://astral.sh/uv/install.sh | sh # Install the package and its dependencies uv pip install . # For development, install with dev dependencies uv pip install ".[dev]"

Using pip

# Install the package and its dependencies pip install . # For development, install with dev dependencies pip install ".[dev]"

Configuration

Create a .env file in your project root:

ANTHROPIC_API_KEY=your_api_key_here

Make sure to keep your API key secure and never commit it to version control.

Running the MCP Server

To run the MCP server, use the following command:

uv run polyglot/server.py

This will start the server on the configured port (default: 8001).

Testing the MCP Server

You can test the MCP server using a simple client script. For example, to test the health check resource, create a file named test_client.py with the following content:

import requests response = requests.get("http://localhost:8001/health") print(response.text)

Run the test client with:

uv run test_client.py

You should see the output: "Service is healthy".

Environment Variables

Make sure to set your Anthropic API key in a .env file in the project root:

ANTHROPIC_API_KEY=your_api_key_here

Additional Notes

The server uses the Model Context Protocol (MCP) to expose tools and resources.
Ensure all dependencies are installed using uv or pip.
For more details, refer to the project documentation.

Protocol Specification

The translation request follows this JSON structure:

{ "version": "1.0", "type": "translation_request", "metadata": { "source_language": "fr", "target_language": "en", "domain": "legal", "formality": "formal", "api_key": "your_api_key_here" // Required for authentication }, "data": { "text": "Le contrat a été signé hier à Genève." } }

Development

To set up the development environment:

# Install uv if you haven't already curl -LsSf https://astral.sh/uv/install.sh | sh # Create and activate a virtual environment uv venv source .venv/bin/activate # On Unix/macOS # or .venv\Scripts\activate # On Windows # Install development dependencies uv pip install ".[dev]"