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  3. Wallet Connection
Dapps

Wallet Connection

Linking your wallet to a decentralized application to authorize and sign transactions.

Last Updated

2026-03-29

Related Concepts

DAppWalletPrivate KeyTransaction Signing
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What is Wallet Connection?

Wallet connection is the process of authenticating your wallet with a dApp, giving the app permission to see your address and request transaction signatures. Your private key never leaves your wallet.

How does Wallet Connection work?

  1. You click "Connect Wallet" and select a wallet provider (MetaMask, Ledger, etc.).
  2. Your wallet displays a permission screen showing the dApp's name and address.
  3. Once approved, the dApp can see your address and request signatures for specific actions.
  4. Each signing request shows transaction details you approve or reject individually.

Why does Wallet Connection matter?

It enables self-custody interaction with dApps. Unlike centralized exchanges where you deposit funds, dApps only request authorization for specific actions without ever touching your keys.

Key features of Wallet Connection

  • Non-custodial private key stays in your wallet
  • dApp sees your address, never your private key
  • Each action requires explicit signature approval
  • Disconnectable at any time

Examples of Wallet Connection

Connecting MetaMask to Uniswap lets Uniswap display your balance and request swap approvals. Connecting a Ledger to OpenSea lets you bid on NFTs with hardware-level signing security.

External References

  • Understanding Wallets
  • Ethereum Developer Docs