Transactions

Overview

Smart Wallets’ transaction system transforms how users interact with blockchain applications by providing a unified, developer-friendly interface for sending transactions across multiple chains. Whether you’re building on EVM or Solana, Smart Wallets abstracts away the complexity while giving you powerful features like gasless transactions, batching, and cross-chain compatibility.

What Makes Smart Wallets Transactions Different?

Smart Wallet transactions are powered by ERC-4337 account abstraction, which enables powerful features like gas sponsorship and modular smart accounts. This technology foundation also supports advanced capabilities including EIP-7702 integration for upgrading existing EOAs and robust transaction retry mechanisms for improved reliability.

Key Advantages

Gasless transactions: Remove the biggest barrier to user adoption by sponsoring gas fees through Alchemy’s Gas Manager, allowing users to transact without holding native tokens.

Batch operations: Execute multiple transactions atomically in a single operation, reducing costs and improving user experience.

Multi-chain support: Send transactions seamlessly across EVM chains and Solana with the same API.

Enhanced security: Leverage smart account features like multi-signature support, account recovery, and programmable transaction policies.

EIP-7702 compatibility: Upgrade existing EOAs to smart accounts without requiring users to create new addresses or transfer assets.

Flexible gas payments: Allow users to pay transaction fees with any ERC-20 token, not just native gas tokens.

Gas Management

Smart Wallets provides sophisticated gas management through three approaches:

  1. Sponsored gas: Complete gas abstraction using Gas Manager policies
  2. ERC-20 payments: Users pay gas with stablecoins or custom tokens
  3. Traditional payments: Standard ETH/native token gas payments

Multi-chain Capabilities

EVM Support

Send transactions across all major EVM chains with features including:

  • Single and batch operations
  • Gas sponsorship and ERC-20 fee payments
  • EIP-7702 delegation for existing EOAs
  • Transaction retry and replacement mechanisms

Solana Integration

Native Solana support with specialized features:

  • Solana transaction signing and sending
  • Multi-signature coordination
  • Instruction batching
  • Custom signer integration

Transaction Lifecycle

Smart Wallets handles all of these transaction lifecycle steps automatically, providing a seamless experience for both developers and users:

1

Authenticate

Users must first authenticate to access their smart wallet before sending transactions. This process verifies user identity through various methods like email OTP, social login, or passkeys, creating a secure connection to their smart account. Learn more about authentication options and implementation.

2

Preparing Transactions

Transactions are constructed with target addresses, data payloads, and value transfers. Multiple operations can be batched into a single atomic transaction for gas efficiency and atomic execution.

3

Signing Transactions

Smart accounts handle complex signing logic, including multi-signature coordination and custom validation rules. The system supports various signing methods from simple EOA signatures to advanced multi-party authorization.

4

Sending Transactions

Transactions are submitted to the blockchain with built-in retry mechanisms and status tracking. The system automatically estimates gas costs and applies sponsorship policies when configured.

5

Monitoring Transactions

Real-time status updates and transaction hash tracking provide seamless user experience. Once confirmed, the transaction results are available with detailed execution information and any relevant event logs.

Next Steps

Ready to implement transactions in your application? Here are the recommended next steps: