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Smart accounts are the primary interface for blockchain interactions in AIR Kit. The smart account is always used when interacting with the AIR Account, while the MPC (Multi-Party Computation) wallet only acts as a signer. AIR Kit provides methods to check deployment status and deploy smart accounts when needed. Key Technical Details:
  • Smart accounts are chain-specific - deployment status and operations depend on the currently selected chain
  • If a smart account is not deployed and your dApp triggers a transaction, AIR Kit will automatically bundle the smart account deployment with the transaction
  • Smart account deployments are sponsored by AIR Kit via paymaster policy, so users don’t need to pay gas fees for deployment

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isSmartAccountDeployed()

Checks whether the user’s smart account has been deployed on the currently selected blockchain. Method Signature: 
public async isSmartAccountDeployed(): Promise<boolean>
Returns:
  • true if the smart account is deployed on the current chain
  • false if the smart account is not yet deployed on the current chain
Requirements:
  • User must be logged in
  • User must be on a supported chain

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deploySmartAccount()

Deploys the user’s smart account to the currently selected blockchain. This method explicitly deploys the smart account, though deployment will also happen automatically when needed. Method Signature: 
public async deploySmartAccount(): Promise<{ txHash: string }>
Returns: 
{
  txHash: string; // The transaction hash of the deployment transaction
}
What happens during deployment:
  1. Checks if the smart account is already deployed on the current chain (throws error if already deployed)
  2. Creates a deployment transaction that sends to the zero address with no value
  3. Submits the transaction to the blockchain using the sponsored paymaster
  4. Returns the transaction hash for tracking
Requirements:
  • User must be logged in
  • User must be on a supported chain
  • Smart account must not already be deployed on the current chain
Example: 
try {
  const { txHash } = await airService.deploySmartAccount();
} catch (error) {
  console.error("Smart account deployment failed:", error);
  // Handle error appropriately
}
Important Notes:
  • Deployment is sponsored by AIR Kit - users don’t pay gas fees for deployment
  • The deployment transaction may take some time to be confirmed on the blockchain
  • After deployment, the user will be able to perform blockchain operations on this chain
  • Automatic bundling: If you don’t explicitly deploy and trigger a transaction, deployment will be automatically bundled with the transaction

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Smart Account Deployment Flow

When working with smart accounts, you have two approaches: Option 1: Explicit Deployment (Recommended for better UX) 
const isDeployed = await airService.isSmartAccountDeployed();
if (!isDeployed) {
  const { txHash } = await airService.deploySmartAccount();
  // Wait for deployment confirmation before proceeding
}
Option 2: Let AIR Kit Handle Deployment Automatically Simply proceed with your transaction - deployment will be bundled automatically if needed. Recommendation: Use Option 1 for better user experience, as it allows you to show deployment progress and handle any deployment-specific errors separately from your main transaction logic.