DeepL MCP Server

An MCP (Model Context Protocol) server providing DeepL translation capabilities.

Features

This server exposes the following tools via MCP:

translate_text: Translates one or more text strings between supported languages using the DeepL API.
list_languages: Retrieves the list of languages supported by the DeepL API (either source or target languages).

Prerequisites

Node.js and npm/yarn: Required to install dependencies and run the server.
DeepL API Key: You need an API key from DeepL. Both Free and Pro plans provide API access. Sign up or learn more at https://www.deepl.com/pro-api.

Installation

Clone the repository:

git clone https://github.com/watchdealer-pavel/deepl-mcp-server.git
cd deepl-mcp-server

Install dependencies:
```
npm install
# or
# yarn install
```
Build the server:
```
npm run build
```
This command compiles the TypeScript source code into JavaScript, placing the output in the build/ directory (specifically build/index.js).

Configuration

The server requires your DeepL API key to be provided via the DEEPL_API_KEY environment variable. You need to configure your MCP client (like Cline/Roo Code or the Claude Desktop App) to run this server and pass the environment variable.

Example Configuration:

Below are examples for common MCP clients. Remember to replace /path/to/your/deepl-mcp-server/build/index.js with the actual absolute path to the compiled server file on your system, and YOUR_DEEPL_API_KEY with your real DeepL API key.

Cline / Roo Code (VS Code Extension)

Open your VS Code settings for MCP servers. On macOS, this is typically located at: ~/Library/Application Support/Code/User/globalStorage/rooveterinaryinc.roo-cline/settings/mcp_settings.json (Note: The exact path might vary based on your operating system and VS Code installation type (e.g., Insiders).)

Add the following configuration block under the mcpServers key:

"deepl-translator": {
  "command": "node",
  "args": ["/path/to/your/deepl-mcp-server/build/index.js"], //