> ## Documentation Index
> Fetch the complete documentation index at: https://mega-cli.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Installation and Setup

> Learn how to install the Mega CLI tool

## Prerequisites

Before installing the Mega CLI, ensure you have:

* [Node.js](https://nodejs.org/) (v16 or higher)
* npm, yarn, or pnpm package manager
* [Git](https://git-scm.com/downloads) (required for project initialization)

## Installing the CLI

You can install the Mega CLI globally using your preferred package manager:

```bash theme={null}
# Using npm
npm install -g megaeth-cli

# Using yarn
yarn global add megaeth-cli

# Using pnpm
pnpm add -g megaeth-cli
```

After installation, you can verify that the CLI is properly installed by running:

```bash theme={null}
mega
```

If it was installed correctly, you'll see something like this:

<img src="https://mintcdn.com/mega-cli/yCjqG8vS0quxmrlY/images/mega-screenshot.png?fit=max&auto=format&n=yCjqG8vS0quxmrlY&q=85&s=d474721ba4e31cf0859df56bc98f9aae" alt="Mega command result" width="946" height="560" data-path="images/mega-screenshot.png" />

## Setting Up Foundry

Mega CLI necessarily requires [Foundry](https://book.getfoundry.sh/) for 3 of its 10 commands. The remaining 7 will work just fine without it.

Foundry is a blazing fast, portable and modular toolkit for Ethereum application development. You can easily install it using the built-in setup command:

```bash theme={null}
mega setup
```

This command will:

* Check if Foundry is already installed
* On Linux/macOS: Automatically install Foundry
* On Windows: Guide you through the manual installation process

To only check if Foundry is installed without attempting installation:

```bash theme={null}
mega setup --check
```

### Manual Foundry Installation

If you prefer to install Foundry manually:

<Tabs>
  <Tab title="Linux/macOS">
    ```bash theme={null}
    curl -L https://foundry.paradigm.xyz | bash
    foundryup
    ```
  </Tab>

  <Tab title="Windows">
    1. Install Rust from [https://rustup.rs/](https://rustup.rs/)
    2. Install Visual Studio build tools
    3. Open a terminal and run:

    ```bash theme={null}
    cargo install --git https://github.com/foundry-rs/foundry --profile release --locked forge cast chisel anvil
    ```
  </Tab>
</Tabs>

## Recommended: Setting Up a Local Account

For the optimal experience with MegaETH CLI, it's recommended to set up a local account:

```bash theme={null}
# Create a new account
mega account create

# Verify your account was created successfully
mega account list
```

When creating an account:

1. You'll be prompted to enter a name for your wallet (e.g., "dev")
2. You'll need to set a password to encrypt your wallet
3. The account will be stored in your local keystore

Your account can now be referenced in other commands using the `--account` flag.

## Next Steps

Now that you have installed the MegaETH CLI and set up Foundry, you're ready to:

* [Create your first project](/quickstart)
* [Learn about the available commands](/commands/init)
* [Explore example workflows](/reference/examples)