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L10n.dev - AI Localization Agent MCP Server

local only

L10n.dev - AI Localization Agent runs on your own machine — the client starts it, so there is no endpoint to ping. 60 installs a week from npm. Last commit 13 Aug 2026.

MCP Server that turns your AI agent into a localization expert with token-efficient i18n translation

Installs per day peak 135 · avg 13 · -54% w/w
a month agotoday
60
Installs / week
npm · ai-l10n-mcp
3
Stars
0 open issues
13 Aug 2026
Last commit
0 releases in 90 days
MIT
License
TypeScript

What the code does

We read the source, 21 h ago · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Builds a file path from a variable sdk/src/i18nProjectManager.ts:170
        const targetDir = path.join(structureInfo.basePath, languageCode);
In the project's build, not in the package

Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.

Builds a database query by concatenation .github/workflows/publish.yml:457
      - name: Update major version tag
        run: |
          MAJOR_TAG=${{ steps.version.outputs.major_tag }}

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add ai-l10n-mcp -- npx -y ai-l10n-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "ai-l10n-mcp": {
      "args": [
        "-y",
        "ai-l10n-mcp"
      ],
      "command": "npx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.ai-l10n-mcp]
command = "npx"
args = ["-y", "ai-l10n-mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "ai-l10n-mcp": {
      "args": [
        "-y",
        "ai-l10n-mcp"
      ],
      "command": "npx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "ai-l10n-mcp": {
      "args": [
        "-y",
        "ai-l10n-mcp"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: YOUR_API_KEY (Your API key for the service). The author declared them in the registry entry; get the values from the project itself.

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L10n.dev - AI Localization Agent — questions

Answers built from our own checks of this server.

Why is there no uptime for L10n.dev - AI Localization Agent?
L10n.dev - AI Localization Agent runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package ai-l10n-mcp was installed 60 times last week.
How do I connect L10n.dev - AI Localization Agent?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls ai-l10n-mcp straight from npm; nothing to host, nothing to sign up for.
How many people use L10n.dev - AI Localization Agent?
The npm package ai-l10n-mcp was installed 60 times in the last week. Week over week that is -54%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is L10n.dev - AI Localization Agent open source?
Yes — it is published under the MIT licence, written in TypeScript and 3 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.