Crowdin Server

A Model Context Protocol (MCP) server that exposes Crowdin translation management capabilities as tools for AI assistants.

Features

The server provides the following tools:

Tool	Description
list_projects	List all accessible Crowdin projects
get_project	Get detailed project information
list_files	List all source files in a project
translation_progress	Get translation & approval progress by language
list_source_strings	List source strings with filtering (file, CroQL, text)
get_source_string	Get a single source string by ID
list_language_translations	List translations for a language
list_string_translations	List all translations for a specific string
add_translation	Add or propose a new translation
delete_translation	Delete a specific translation
delete_all_translations	Delete all translations for a string
approve_translation	Approve a translation
remove_approval	Remove a translation approval
search_and_replace_translations	Bulk find & replace in translations

Prerequisites

• Node.js >= 18
• A Crowdin API token

Installation

npm install

Configuration

Set the CROWDIN_TOKEN environment variable:

export CROWDIN_TOKEN="your-crowdin-api-token"

Usage

Development

npm run dev

Production

npm run build
npm start

MCP Client Configuration

Add the server to your MCP client (e.g. VS Code, Claude Desktop):

{
  "mcpServers": {
    "crowdin": {
      "command": "node",
      "args": ["dist/index.js"],
      "env": {
        "CROWDIN_TOKEN": "your-crowdin-api-token"
      }
    }
  }
}

Or for development with tsx:

{
  "mcpServers": {
    "crowdin": {
      "command": "npx",
      "args": ["tsx", "src/index.ts"],
      "env": {
        "CROWDIN_TOKEN": "your-crowdin-api-token"
      }
    }
  }
}

Scripts

Utility scripts in scripts/ for bulk translation operations:

Script	Purpose
fix-translations.ts	Bulk search & replace for branding updates
fix-followup.ts	Follow-up fixes after initial bulk update
fix-individual-qa.ts	Fix individual QA issues
approve-fixes.ts	Approve corrected translations
verify-fixes.ts	Verify applied fixes
assess-translations.ts	Assess translation quality
compare-translations.ts	Compare translations across languages
revoke-all-approvals.ts	Revoke all approvals for a language
search-replace-preview.ts	Preview search & replace changes

Run any script with:

npx tsx scripts/<script-name>.ts

Tech Stack

• TypeScript
• @modelcontextprotocol/sdk — MCP server SDK
• @crowdin/crowdin-api-client — Crowdin API client

License

MIT