How can SDAs be used together with Automated Onchain Actions, and what are typical examples?

Smart Deposit Addresses can be combined with Automated Onchain Actions to enable fully automated on-chain outcomes after a cross-chain deposit — no additional steps required from the user or the client system.

How SDAs + Automated Onchain Actions Work Together

When creating an SDA, you can include a postBridgeData field specifying the action to execute after funds are settled on the destination chain. The SDA handles chain detection, routing, and cross-chain transfer; the Automated Onchain Action then executes the defined contract interaction with the settled funds.

Every deposit to that address triggers the same action automatically — no per-deposit configuration needed. This makes it the recommended pattern for onboarding flows: generate one SDA per user with their action baked in.

Typical Examples

Vault Deposits Automatically deposit bridged funds into a yield-generating vault or lending pool. The user's recipient address receives the protocol's output token (e.g. vault shares), with no manual steps required.

Auto-Issuance of Wrapped or Yield-Bearing Tokens Convert bridged funds into wrapped or synthetic token equivalents — for example, converting USDC into a yield-bearing USDC representation — upon arrival at the destination chain.

Protocol-Specific Deposits Automatically deposit funds into DeFi protocols, DEX liquidity pools, or trading accounts, eliminating the manual steps a user would otherwise need to take after bridging.

Custodial Account Crediting Trigger a contract call that signals an off-chain system to credit a user's account balance, useful for exchanges and custodial platforms that want to accept on-chain deposits without requiring users to interact with their chain directly.

Technical Considerations

• Automated Onchain Actions add a smart contract interaction to the settlement step, so destination chain gas fees are higher than for standard SDA withdrawals.

• The postBridgeData field must be included at SDA creation time. The action configuration applies to all subsequent deposits to that address.

• This is a premium Extension and must be enabled on your account before use.

Getting Started

Contact partnerships@rhino.fi to enable Automated Onchain Actions on your account, or refer to the API Docs for full integration details including the postBridgeData field schema.