xcstrings-mcp

What it does

This MCP server provides a comprehensive interface for managing Apple's .xcstrings translation catalogs. It allows AI agents to browse, search, and edit translation keys and values without needing to open Xcode manually.

Tools

• list_translations: List translation entries with optional filtering.
• list_keys: List translation keys without loading full records.
• get_translation: Fetch a single translation by key and language.
• upsert_translation: Create or update a translation, including variations and substitutions.
• delete_translation: Remove a translation for a specific language.
• delete_key: Completely remove a translation key across all languages.
• set_comment: Manage developer comments for translation keys.
• set_translation_state: Update the translation state for a language entry.
• set_extraction_state: Manage the extraction state of a string key.
• list_languages: List all languages present in the catalog.
• add_language: Add a new language to the xcstrings file.
• remove_language: Remove a language from the catalog.
• update_language: Rename or update a language code.
• list_untranslated: List keys that require translation per language.

Installation

Add the following to your claude_desktop_config.json:

{
  "mcpServers": {
    "xcstrings": {
      "command": "/Users/you/.cargo/bin/xcstrings-mcp",
      "transport": "stdio"
    }
  }
}

Supported hosts

• Claude Desktop
• Claude Code
• Codex