Smart Wallets make it easy to send transactions across EVM and Solana. This section covers everything you need to know about preparing, signing, sending, and tracking transactions.

Transaction lifecycle

When a user sends a transaction, Smart Wallets handle every step. In this section, you’ll learn how to execute steps 2–5 to enable capabilities (ex: gas sponsorship) for your users:

Authenticate: User verifies their identity and accesses your app (see Authentication)
Prepare: Prepare a transaction for submission
Sign: User signs the transaction
Send: Submit the transaction for inclusion onchain
Track & display data: Track the status of the transaction and display it to the user

Everything you need for onchain applications

Capability	Description
Send transactions	Execute a single transaction
EIP-7702	Upgrade embedded EOA users to smart wallets
Batch transactions	Execute multiple transactions atomically in a single step (ex: approve & swap)
Sponsor gas	Make gas disappear and say goodbye to “insufficient gas”
Pay gas with any token	Pay gas with stablecoins or the sell-side token
Swap tokens	Swap across networks, seamlessly
Retry transactions	Retry transactions stuck in mempool
Send parallel transactions	Send multiple transactions in parallel
Sponsor gas on Solana	Sponsor fees & rent and say goodbye to “insufficient fees”
Track status	Track the status of the transaction

SDK vs. APIs

Use the SDK if you’re building with React, React Native, or other JavaScript frameworks. It provides ready-to-use hooks and utilities. Use the APIs directly if you’re building in other environments (ex: python, flutter) or want lower-level control.