MetaMask

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

13204 stars · 5575 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

MetaMask is a self-custodial crypto wallet available as a browser extension (Chrome, Firefox, Brave, Edge, Opera) and mobile app, enabling users to manage Ethereum, EVM, and Solana assets and interact with dapps. The open-source repositories contain the extension and mobile client code, plus extensibility via Snaps.

Use cases

• connect my dapp to users' crypto wallets
• sign ethereum transactions from a browser extension
• manage erc-20 tokens and nfts in a self-custodial wallet
• browse and use web3 dapps in chrome or firefox
• swap tokens across multiple evm networks
• extend wallet functionality with custom snaps
• onboard users to a dapp with embedded wallets

When to choose

• you need a widely adopted, battle-tested web3 wallet for dapp integration
• you want multichain support across EVM networks and Solana
• you need extensible wallet features via the Snaps plugin system
• you want a wallet with mobile and browser parity

When to avoid

• you need a non-custodial server-side wallet for backend services
• you only need raw blockchain RPC access without key management
• you require a fully permissively licensed codebase for redistribution

Facets

application · maturity active

security cryptography browser-extension sdk developer-tools blockchain browser-extensions web-development privacy browser browser-extension cross-platform crypto-wallet ethereum web3 dapp-browser self-custodial-wallet snaps multichain solana nft cryptocurrency android ios javascript

Member repositories

For agents

markdown · JSON · MCP: product_card(name="MetaMask/metamask-extension")