Install the CLI

The MCP server is the easyi18n mcp command of the easyi18n CLI, so an agent needs the CLI on the machine where its client runs. Pick the install that fits your environment. All of them provide the same easyi18n command.

Method	Needs	Available
npx or npm install -g	Node.js 18 or later	With CLI 0.13.0
Binary installer	macOS, Linux x64, or Windows x64 with Git Bash	CLI 0.12.0
Download a binary	macOS, Linux x64 or Windows x64	CLI 0.12.0
dart pub global activate	Dart 3.9 or later	CLI 0.12.0

Check the result with easyi18n --version. An MCP client runs the server with the same command followed by mcp.

npm

The npm package @easyi18n.com/cli is published with CLI 0.13.0. Clients can start the server without installing anything first:

npx -y @easyi18n.com/cli@0.13.0-rc.6 mcp

To have the easyi18n command in your shell:

npm install -g @easyi18n.com/cli
easyi18n --help

The package installs a prebuilt binary for your platform, downloaded from the matching release and verified against the release's SHA256SUMS. With --ignore-scripts, or under pnpm's default of not running dependency scripts, it downloads the binary on the first run instead.

Binary installer

curl -fsSL https://github.com/liontude/easyi18n-dart/releases/latest/download/install.sh | sh

The script picks the binary for your platform, verifies it against SHA256SUMS, checks that it runs, and installs it to ~/.local/bin. It prints a reminder when that directory is not on your PATH.

Variable	Effect
EASYI18N_VERSION	Install a specific release, such as 0.12.0, instead of the latest.
EASYI18N_INSTALL_DIR	Install somewhere other than ~/.local/bin.
EASYI18N_RELEASES_URL	Download from a mirror of the releases page, such as an internal one. The npm package reads it too.

On Windows, run it from Git Bash; it installs easyi18n.exe.

Download a binary

Each CLI release carries easyi18n-macos-arm64, easyi18n-macos-x64, easyi18n-linux-x64 and easyi18n-windows-x64.exe, with their checksums in SHA256SUMS. Verify the file before running it:

shasum -a 256 easyi18n-macos-arm64
grep easyi18n-macos-arm64 SHA256SUMS

Rename it to easyi18n (or easyi18n.exe), make it executable, and put it on your PATH.

Dart

dart pub global activate easyi18n_cli
easyi18n --version

Dart's global executable directory has to be on your PATH. A client can also start the server with dart pub global run easyi18n_cli:easyi18n mcp, which does not depend on PATH. On another platform than the four with binaries, this is the install to use.

Updating

Run the binary installer, npm install -g or dart pub global activate again. The Claude Code plugin is pinned to one CLI version and downloads that version itself, as described in Claude Code plugin.