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DeepL MCP Server

MCP Server for DeepL Translation API

Local serverstdio

What is the DeepL MCP Server?

MCP Server for DeepL Translation API

What you get

An MCP (Model Context Protocol) server providing high-quality translation capabilities via the DeepL API.

Configuration and credentials

  • Node.js 18+ (including Node.js 25) - DeepL API Key — Sign up here (Free tier available)

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Maintainer setup documentation.

Configuration

  • Node.js 18+ (including Node.js 25) - DeepL API Key — Sign up here (Free tier available)
VariableDescriptionRequired
DEEPL_API_KEYCredential the server authenticates with.Yes

Frequently asked questions

Node.js 18+ and a DeepL API key from the Free or Pro API. The server automatically picks the correct API endpoint based on the key format: keys ending in `:fx` use `api‑free.deepl.com`, others use `api‑pro.deepl.com`.

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