Overview
WalletConnect is an open protocol that connects mobile wallets to decentralized applications via QR codes, standardizing wallet-to-dapp communication across the ecosystem. It became the default way dapps connect to mobile wallets. The protocol underpins a large share of Web3 dapp interactions.
How It Works
A dapp generates a QR code or deep link that a wallet scans to establish an encrypted session. Once connected, the wallet signs transactions and messages on behalf of the user while the dapp handles the interface. WalletConnect v2 introduced a relay network and multi-chain support, improving reliability and scope.
Key Features
The protocol works across wallets, dapps, and chains, making it a neutral connectivity layer. It supports both mobile and desktop wallets through QR pairing. Its decentralized relay infrastructure reduces reliance on any single server.
Pricing
WalletConnect is open source and free to use for basic connectivity. The network operates relays and infrastructure supported by the WalletConnect Foundation and grants. Some relay capacity is subsidized to keep the ecosystem accessible.
Alternatives
WalletConnect is a standard rather than a competing wallet, and most wallets support it. Its main alternative is browser-injected connections, which tie dapps to a single extension. For multi-device usage, WalletConnect is the dominant approach.