WalletConnect

Overview

WalletConnect is an interoperability protocol and network that lets wallets establish sessions with applications and approve blockchain actions across devices and platforms. It is used to standardize wallet connection, account sharing, message signing, and transaction request flows. It differs from a wallet or custody service, because it transports session requests but does not hold user keys or independently authorize transactions.

A typical implementation works as follows: An application presents a connection proposal, the wallet reviews namespaces and permissions, both establish a session, and the wallet later receives signing or transaction requests.

Common risks include malicious applications and overbroad session permissions. Important failure modes include malicious applications, overbroad session permissions, phishing, stale sessions, unsupported chains, and confusing request displays. These failures can cause unsafe approvals.

Core controls require teams to show verified application identity and exact permissions, validate namespaces, minimize session scope, expire sessions, and present human-readable signing details. Operational evidence for WalletConnect should connect the installed version and configuration to the provider request, response, event, and final business outcome.

Operational evidence should include session topic, peer metadata, namespaces, accounts, chain IDs, expiry, request ID, and approval result. WalletConnect should be documented alongside Access Token, RPC Endpoint, and ABI Encoding. The WalletConnect release boundary should state supported platform versions, configuration ownership, upgrade behavior, and production rollback conditions.

Monitoring for WalletConnect should separate host-platform errors, provider API failures, callback delays, and mismatched business records. The WalletConnect owner should document credential rotation, dependency upgrades, data mapping changes, and the manual recovery path. Compatibility testing for WalletConnect should include older supported versions, custom extensions, background jobs, and asynchronous callbacks.