MCP Server

Active

Tolgee MCP Server

io.github.tolgee/tolgee

AI-powered translation management integrated directly into your editor via MCP

What is the Tolgee MCP server?

The Tolgee MCP server is an open-source localization platform that exposes translation management capabilities through the Model Context Protocol. It allows AI coding assistants to search translation keys, create and update translations, manage languages, and trigger machine translation without leaving the editor.

Tolgee is a developer-friendly localization platform that integrates translations directly into your application. The MCP server enables AI assistants to manage your app's translations programmatically—search keys, create translations, update existing ones, manage languages, and leverage machine translation services (DeepL, Google Translate, AWS Translate) all from your coding environment.

How to install Tolgee

Copy-paste configuration for popular MCP clients.

transport: http

Config generated by PluginBench — verify against the source before use.

Environment / auth

X-API-Key
required
secret
Tolgee Personal Access Token (tgpat_...) or Project API Key (tgpak_...)

~/.cursor/mcp.json

{
  "mcpServers": {
    "tolgee": {
      "url": "https://app.tolgee.io/mcp/developer"
    }
  }
}

Tools & capabilities

Tools this server exposes to the agent.

Search translation keys — Find and retrieve translation keys from your Tolgee project
Create translations — Add new translation strings to your project
Update translations — Modify existing translations in your project
Manage languages — Add, configure, and manage target languages for your project
Trigger machine translation — Automatically translate keys using DeepL, Google Translate, or AWS Translate

Use cases

Search for existing translation keys while coding to avoid duplicates
Create new translation entries directly from your editor without switching to the Tolgee UI
Update translations across multiple languages programmatically
Set up machine translation for new keys to speed up localization workflows
Manage language configurations for your project from your development environment

Tolgee MCP server FAQ

What is the Tolgee MCP server?

It's an MCP (Model Context Protocol) server that connects AI coding assistants like Claude and Cursor to Tolgee's translation management platform, enabling translation operations directly from your editor.

Is Tolgee free?

Tolgee is open-source under Apache 2 / Tolgee EL license. You can self-host it or use the managed cloud version at app.tolgee.io.

How do I install the Tolgee MCP server?

The server is available as a remote streamable-HTTP endpoint at https://app.tolgee.io/mcp/developer. Configure it in your MCP client (Cursor, Claude) by adding this URL to your MCP settings.

What authentication is required?

You need a Tolgee API key from your project settings to authenticate requests to the MCP server.

What machine translation services does Tolgee support?

Tolgee supports DeepL, Google Translate, and AWS Translate. You configure your preferred service in Tolgee settings.

Can I use Tolgee for in-context translation?

Yes, Tolgee supports in-context translation in your app using its SDKs and Chrome plugin, allowing you to edit translations directly in your running application.

README (reference)

Source of truth, from the repository.

<h1 align="center" style="border-bottom: none"> <b> <a href="https://tolgee.io">Tolgee</a><br> </b> An open-source localization platform<br/> developers enjoy working with <br> </h1> <div align="center"> <h3 align="center"> <a href="https://www.g2.com/products/tolgee/reviews" target="_blank" style="text-decoration: none;"> 🤫 Happy with Tolgee? Please review us on G2 🙏 </a> </h3>

An open-source alternative to Crowdin, Phrase, or Lokalise

kotlin

</div>

Tolgee

Why use Tolgee?

It saves you valuable time that would otherwise be spent on localization tasks while ensuring your software is flawlessly translated.

Frame 47

In context translating & One click screenshots

Easily add translations to your code and edit them directly within your app using the Tolgee i18n tool. Simply hold the ALT/Option key and click on an element to open a dialog where you can modify your strings effortlessly—no need to navigate through bulky .json/.po/.whatever files. Plus, in-context translation works seamlessly even in the production environment.

Just one click—that’s all it takes to capture a screenshot of your application with highlighted phrases for translation. Simply hold ALT + click on a string, then hit the camera button. Boom! Your screenshot is instantly generated.

Sep-06-2022 16-38-49

Translating on production

In-context translation works seamlessly even in the production environment of your deployed app. With the Tolgee Tools Chrome plugin, simply enter your API key and start translating—no coding skills required. This makes it easy for anyone to contribute to your app’s translations effortlessly.

True integrations

Tolgee isn't just another localization platform that simply syncs your local data with a backend. Instead, it seamlessly integrates into your app through powerful SDKs, providing a truly embedded translation experience.

Machine translation

We support DeepL, Google Translate, and AWS Translate—simply choose your preferred services in the settings. With machine translation, the localization process becomes significantly faster, allowing translators to leverage AI-powered suggestions for more efficient and accurate translations.

Translation memory

Tolgee automatically suggests translations based on those you've previously used in the project, ensuring consistency across similar phrases.

Translation memory suggestions include the similarity percentage, the key, and the original text of the translated string, making it easy to maintain accuracy and coherence.

Auto translation

When enabled, Tolgee instantly translates new keys using translation memory or machine translation services, ensuring your strings are translated immediately upon creation. Simply choose whether to use translation memory and select your preferred machine translation service for seamless automation.

Activity log

Easily track who modified, reviewed, or commented on phrases in your project—all with complete clarity.

Comment on translations

If something seems off, let others know what you'd change. You can leave comments on any translation directly within the Tolgee platform.

Translation history

Easily track changes to specific translations of a particular key in a specific language. If something's amiss, you'll know exactly where to point the finger!

MCP Server

Tolgee exposes an MCP (Model Context Protocol) server that lets AI coding assistants manage translations directly — search keys, create and update translations, manage languages, trigger machine translation, and more — all without leaving your editor. See DEVELOPMENT.md for setup instructions.

Documentation

The docs cover all aspects of using Tolgee. Some highlights include:

Get Started. Sign up, Create a project, follow a guide, have fun!
JavaScript SDK. Play around and Let us know what you think #FeedbackWanted ❤️
Tolgee CLI. Make your life easier while using Tolgee
Integrations. Name it and we have it.
Junie Guidelines. Guidelines for new contributors and junior developers.

Getting Started 🚀

Sign up at app.tolgee.io or access your self-hosted instance
Create a project
Follow a guide in the integration section of your project
Have fun!

Integration guides

Report a Bug

For filing bugs, suggesting improvements, or requesting new features, please open an issue.

How to contribute

You wanna contribute? Great to hear that! You can start right away!

Contributors

Let us know what you think! #FeedbackWanted ❤️

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