Litei18n MCP Server

LiteI18n MCP

Manage your app's translations from Claude, ChatGPT, Cursor, VS Code and any other AI app that speaks the Model Context Protocol.

LiteI18n stores your app's translation keys, lets you draft and review translations, and ships them to your app over the air (OTA), with no app store release. This hosted MCP server lets an AI agent do that work for you: find keys, add new copy, draft translations, publish them and ship a release.

https://mcp.litei18n.com/mcp

• Hosted. Nothing to install, no package, no token to copy.
• Browser sign-in (OAuth 2.1). Your AI app opens LiteI18n, you sign in, pick the workspace, projects and access level, and approve.
• You stay in control. Every connection is listed under Connect AI in your workspace, where you can disconnect it at any time. Access is set per project.
• Safe by default. Writes are drafts until you publish them, and every tool tells your AI app whether it reads, changes or publishes, so the app can ask you first.

Contents

• Connect your AI app
• What you can ask
• Tools
• Permissions
• Agent skill
• Automated tools (CI)
• Requirements
• Troubleshooting
• Privacy, security and support

Connect your AI app

Up-to-date guides with copy buttons and one-click installs: litei18n.com/agents.

Claude (web, desktop and mobile)

1. Open Customize → Connectors, click + Add and choose Add custom connector.
2. Name it litei18n, paste https://mcp.litei18n.com/mcp, click Continue twice, then Add.
3. Click Connect and sign in to LiteI18n.

On Team and Enterprise plans, an Owner adds it first under Organization settings → Connectors; members then click Connect.

ChatGPT

1. Open chatgpt.com/plugins, click + and choose Add custom MCP server.
2. Name it litei18n, paste the link, choose OAuth, confirm the warning and click Create as a plugin. Sign in to LiteI18n.
3. Install the plugin, then type @ in a new chat and pick litei18n.

If + is missing, your workspace admin may need to allow custom MCP servers.

Claude Code

claude mcp add --transport http litei18n https://mcp.litei18n.com/mcp

Then type /mcp, choose litei18n and sign in. To get the agent skill as well, install the plugin instead (see Agent skill).

Codex

codex mcp add litei18n --url https://mcp.litei18n.com/mcp
codex mcp login litei18n

Gemini CLI

gemini extensions install https://github.com/Aevum-Technology/litei18n-mcp

This adds the MCP server and the agent skill together. Start gemini, then run /mcp auth litei18n and sign in.

Cursor

Install in Cursor, or add this to .cursor/mcp.json:

{
  "mcpServers": {
    "litei18n": { "url": "https://mcp.litei18n.com/mcp" }
  }
}

VS Code

Install in VS Code, or add this to .vscode/mcp.json:

{
  "servers": {
    "litei18n": { "type": "http", "url": "https://mcp.litei18n.com/mcp" }
  }
}

OpenCode

Add this to opencode.json, then run opencode mcp auth litei18n:

{
  "mcp": {
    "litei18n": { "type": "remote", "url": "https://mcp.litei18n.com/mcp" }
  }
}

Devin Desktop (formerly Windsurf)

Add this to ~/.config/devin/mcp_config.json (on Windows, %APPDATA%\devin\mcp_config.json), save, and sign in when asked:

{
  "mcpServers": {
    "litei18n": { "serverUrl": "https://mcp.litei18n.com/mcp" }
  }
}

Antigravity

Add this to ~/.gemini/config/mcp_config.json, then open Agent settings → Customizations and click Authenticate next to litei18n. Paste the code your browser shows and click Submit.

{
  "mcpServers": {
    "litei18n": { "serverUrl": "https://mcp.litei18n.com/mcp" }
  }
}

Zed

Open Settings → AI → MCP Servers, click Add Server, choose Add Remote Server and paste the link.

Any other app

Add a remote MCP server using Streamable HTTP with the link above. Sign in when your browser opens.

What you can ask

• "Add a key for the new checkout button and translate it into every language in the project."
• "Which keys in the onboarding screens are missing a German translation? Draft them."
• "Fix the typo in the French welcome message, then show me the change before publishing."
• "Publish the Spanish drafts and ship a release to the app."
• "Delete the old promo.summer_2025 keys."

Tools

Every tool declares a title and the standard MCP safety hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint), so your AI app can ask before it publishes or deletes. Results are structured data matching each tool's output schema. Text written by project members (key names, translations, drafts) is marked as content, never as instructions.

Permissions

When you approve a connection you choose, for each project, what the AI app may do:

Presets: Read only (all reads), Read and write (all reads, key and translation writes, publishing), Full access (everything, including releases).

Agent skill

skills/litei18n is an Agent Skill that teaches your agent the LiteI18n workflow: look before writing, drafts versus publishing, when to ask first, and how to load OTA translations in your app with a safe fallback. It works with the MCP server above; it is optional but makes agents more careful and more accurate.

Claude Code (plugin: MCP server and skill together)

/plugin marketplace add Aevum-Technology/litei18n-mcp
/plugin install litei18n@litei18n

Gemini CLI (extension: MCP server and skill together): see Gemini CLI.

Any agent that supports skills (Claude Code, Codex, Cursor, OpenCode and others)

npx skills add Aevum-Technology/litei18n-mcp --skill litei18n

Claude.ai and the Claude desktop app: download this repository as a ZIP, then upload the skills/litei18n folder (zipped) under Customize → Skills.

Manually: copy skills/litei18n into your agent's skills folder, for example ~/.claude/skills/litei18n or .agents/skills/litei18n.

Automated tools (CI)

Scripts and CI jobs can call the same link with a LiteI18n API token instead of signing in. Create one under API Tokens in your workspace and send it as Authorization: Bearer litei18n_…. Keep it in your CI's secret store, never in code or chat.

Requirements

• A LiteI18n account. MCP access is included on every plan, Free too.
• The workspace owner or admin role to approve a connection.
• Creating OTA releases needs the Starter plan or above.

Troubleshooting

Privacy, security and support

• Privacy policy: litei18n.com/privacy
• Terms of service: litei18n.com/terms
• Sub-processors: litei18n.com/subprocessors
• Support: litei18n.com/contact
• Security reports: see SECURITY.md

The server only acts inside the workspace and projects you approved, and only with the permissions you chose. Your AI app never sees your LiteI18n password.

About this repository

This repository holds the public documentation, the MCP Registry entry (server.json), the Claude Code plugin, the Gemini CLI extension (gemini-extension.json) and the agent skill. The hosted service itself is operated by Aevum Technology LTD and is not open source. The contents of this repository are released under the MIT License.