Resources

View the following Snaps resources in addition to this documentation site.

Primary resources

• Snaps homepage
• Snaps directory - A directory of allowlisted Snaps you can try in the MetaMask extension.
• SIPs - Suggest new Snaps APIs with Snaps Improvement Proposals.
• Builder Engagement Program - Connect with the Snaps builder engagement team and get support while building your Snap.

Example Snaps

• Example Snaps - A directory of Snaps maintained by MetaMask.
• Linea Voyager - View Linea XP balance, PoH status, and current Linea Voyage activations from within MetaMask.
• Starknet - Adds Starknet account and transaction functionality to MetaMask.
• Simple Keyring Snap - An example account management Snap using the Keyring API.
• Mystery Fox - Provides random answers to questions and showcases interactive UI and images.
• Farcaster Insights - Shows if the recipient in a transaction request has a Farcaster account and their stats.
• Smart Account Template - Template for integrating the Biconomy Smart Account with the Keyring API.
• Text Transformer - Transforms strings into Unicode bold, italic, and strikethrough characters for use on social media. Demonstrates interactive JSX UI in a home page.
• Social Names - Adds Farcaster and Lens handles to the send flow and petnames using custom name resolution.

Developer tools

• Template Snap - A rich template that includes TypeScript/React and vanilla JavaScript options, a CLI for building, packaging, and deploying your Snap, and a companion dapp UI you can build on.
• Test Snaps - A collection of test Snaps and a dapp for evaluating them.
• snaps-jest - A Jest preset for end-to-end testing MetaMask Snaps, including a Jest environment, and a set of Jest matchers. See how to test a Snap using snaps-jest.
• Snapper - A tool for detecting security vulnerabilities, identifying potential issues, and ensuring best coding practices in your Snap.
• MetaMask Testing Tools - A collection of tools for testing MetaMask, MetaMask Flask, and MetaMask Snaps with Playwright, delivered as an npm package that provides a createFixture function that returns a test and expect function that can be used to write tests.

Blog posts

• Making the Wallet Personal by Christian Montoya
• Permissionless Innovation and You by Erik Marks
• Snaps in MetaMask Stable and Where We Go From Here by Dan Finlay
• MetaMask Snaps Launch with Hardened JavaScript Under the Hood by Agoric
• Navigating the Security Landscape of MetaMask Snaps by Martin Ortner & Valentin Quelquejay
• Going Beyond The Secret Recovery Phrase In MetaMask With Account Management Snaps by Alex Jupiter

Videos

• MetaMask Snaps Public Launch (12 min)
• What is MetaMask Snaps? Main Functions and Features Explained (53 mins)
• Deep Dive into MetaMask Snaps (57 min)
• Building a Universal Web3 Interface (16 min) (Slides)
• It's Our Wallet, Let's Build It Together (19 min) (Slides)
• Building the Future with MetaMask Snaps (22 min) (Slides)
• MetaMask Snaps YouTube playlist
• How to Build Your Own Polkadot MetaMask Snap (32 min)
• How to Build and Customize a MetaMask Snap (47 min)

Community

• Snaps GitHub discussions - Browse discussions and ask questions about Snaps.
• Consensys Discord - Ask questions about Snaps on the mm-snaps-dev channel.
• Snaps GitHub issues - If you encounter any issues with Snaps, open a GitHub issue.

Snaps for developers

Many Snaps are designed to be used by developers.

• CubeSigner - Enables dapp developers to manage keys for Ethereum, Bitcoin, Solana, and more using secure remote hardware.
• Galactica ZK Vault - Integrates the Galactica Network for dapps to leverage ZK-proofs for compliant privacy.
• Hedera Wallet - Build Hedera dapps with the methods provided by Hedera Wallet.
• Leap Wallet - Connect Cosmos dapps to MetaMask with Leap Wallet.
• MinaPortal - Build ZkApps on Mina Network with the dapp methods provided by MinaPortal.