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Deepl MCP Server logo

Deepl MCP Server

watchdealer-pavel/deepl-mcp-server

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

View on GitHub3

Install

Client configuration

{
  "mcpServers": {
    "deepl": {
      "command": "node",
      "args": [
        "/path/to/deepl-mcp-server/build/index.js"
      ],
      "env": {
        "DEEPL_API_KEY": "<DEEPL_API_KEY>"
      }
    }
  }
}

Environment variables

DEEPL_API_KEY
GitHub stars
3
Author
@watchdealer-pavel
Category
Developer Tools, Language Translation
License
MIT
Updated
Oct 6, 2026

Features

  • Next-gen model selection — Use model_type values such as quality_optimized or prefer_quality_optimized

  • Formality control — Adjust tone for formal/informal contexts

  • Context parameter — Provide additional context for better accuracy (not billed)

  • Glossary support — Create, list, inspect, use, and delete DeepL v3 glossaries

  • Batch translation — Translate multiple texts in a single request

  • Preserve formatting — Keep original text formatting

  • HTML/XML tag handling — Use tag_handling, tag_handling_version, ignore_tags, splitting_tags, and related options

  • Billing visibility — Use show_billed_characters to include billed character counts in translation responses

  • Document translation — Upload, poll, and download translated files

  • v3 language metadata — Retrieve product-specific language support and feature rules

Details on this page are taken from the project's README. Open README

Supported clients

Clients mentioned in this server's README:

View all
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