Localize your app with an AI agent

Name: Localization.One
Availability: OnlineOnly
Author: Localization.One

Connect localization.one to Claude, Cursor or any MCP-compatible agent. It creates the project, picks the languages, imports your files and adds new strings as it writes code. AI translates everything into your languages.

Add the server

Run this command in Claude Code, or add the URL as a custom connector in Claude, Cursor, VS Code or Windsurf.

Sign in once

Your agent opens a browser window. Sign in or create a free account and allow access. There are no API keys to copy.

Ask your agent

For example: “Localize this app into Spanish, German and Japanese with localization.one.”

Claude Code

claude mcp add --transport http localization-one https://api.localization.one/mcp

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Server URL

https://api.localization.one/mcp

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What your agent can do

Create a project, choose the source and target languages, turn on AI translation
Import JSON, Android XML, iOS .strings, ARB, PO, PHP, .properties and CSV files
Add new strings with context for translators while it writes code
Find strings, check what is not translated yet, fix translations
Export ready translations in your app's format

Other clients

Any client that supports remote MCP servers with OAuth works: use the server URL below. For clients that only run local servers, use mcp-remote.

Claude (claude.ai, Desktop)

Settings → Connectors → Add custom connector → https://api.localization.one/mcp

Cursor — ~/.cursor/mcp.json

{
  "mcpServers": {
    "localization-one": { "url": "https://api.localization.one/mcp" }
  }
}

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VS Code — .vscode/mcp.json

{
  "servers": {
    "localization-one": { "type": "http", "url": "https://api.localization.one/mcp" }
  }
}

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Windsurf, Zed and other stdio-only clients

npx -y mcp-remote https://api.localization.one/mcp

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Scripts and CI

To skip the browser sign-in, send a project API key as a Bearer token. The agent then works with that one project only. You'll find the key in Project settings → API and webhook.

claude mcp add --transport http localization-one https://api.localization.one/mcp \
  --header "Authorization: Bearer $LOCALIZATION_ONE_API_KEY"

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REST API reference →