> For the complete documentation index, see [llms.txt](https://docs.megaeth.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.megaeth.com/moss-docs/core-sdk/installation.md).

# Installation

The core package is `@megaeth-labs/wallet-sdk`. Use it when you want direct access to the `mega` object without the React provider and hooks layer. The React SDK wraps this same package.

Published at: [npmjs.com/package/@megaeth-labs/wallet-sdk](https://www.npmjs.com/package/@megaeth-labs/wallet-sdk).

## Install

```bash
# pick your package manager
npm install @megaeth-labs/wallet-sdk
pnpm add @megaeth-labs/wallet-sdk
yarn add @megaeth-labs/wallet-sdk
```

## Import Surface

```ts
import { mega } from '@megaeth-labs/wallet-sdk';
import type {
  Config,
  ConnectionStatus,
  TransferRequest,
  CallContractRequest,
  GrantPermissionsRequest,
} from '@megaeth-labs/wallet-sdk';
```

## What You Get

* `mega.initialise(config)` — one-time setup, see [`mega.initialise()`](/moss-docs/methods/methods/initialise.md).
* `mega.events.onStatusChange(callback)` — wallet status subscription.
* Wallet actions: `connect`, `disconnect`, `status`, `open`, `transfer`, `send`, `swap`, `signMessage`, `signData`, `authenticate`, `callContract`, `getFromContract`, `deposit`, `balances`.
* Smart Approvals: `grantPermissions`, `getPermissions`, `revokePermissions`.
* Shared request/response types for integration-safe code.

The SDK currently ships as ESM + CJS bundles with type declarations. It uses [Penpal](https://github.com/Aaronius/penpal) to bridge the parent window to the hosted MOSS wallet iframe.


---

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