MetaMask Guide

"The Gateway to Web3"

What is MetaMask?

MetaMask is the most popular non-custodial wallet in the world. It works as a browser extension or mobile app, allowing you to interact with the Ethereum blockchain and other compatible networks (Polygon, BSC, etc.).

Costs

Free to download. You only pay the network 'Gas Fees' for each transaction.

MetaMask Card

MetaMask now offers the 'MetaMask Card', a Mastercard debit card that allows you to spend your crypto directly from your wallet for everyday purchases, anywhere Mastercard is accepted.

Features

Available in Virtual and Metal versions. Instant on-chain spending and exclusive lifestyle benefits.

EXPLAINED WITH EXAMPLES

MetaMask Guide, in practice

The goal of this section is to turn the concept into an operational picture: what it means, where it can be useful and what to verify before adopting it in a real project.

What it changes

Focus on the concrete difference compared with a traditional Web2-only approach.

Example: map the user journey before choosing the technology.

Where it fits

Evaluate the use case, the audience and the tools that actually support the experience.

Example: identity, payments, tokenized assets or decentralized content.

What to verify

Check compatibility, custody model, costs, security and the operational steps required after setup.

Example: test the complete flow on mobile and desktop before launch.