> ## Documentation Index
> Fetch the complete documentation index at: https://docs.aeon.so/llms.txt
> Use this file to discover all available pages before exploring further.

# EVM Typed Data

> Learn how to simulate signing and interaction with EVM typed data (EIP-712) using the Aeon SDK.

# EVM Typed Data

Define and simulate interactions involving EVM typed data (EIP-712) using the Aeon SDK's `AeonClient`. This is common for off-chain message signing (permits, meta-transactions).

## `AeonClient.requestSimulatedTransaction("evm-typed-data", params)` (Conceptual)

```typescript theme={null}
// Example of queuing an EVM Typed Data simulation operation
const aeonClient = new AeonClient({ simulationUrl: "..." });

const typedData = {
  domain: {
    /* ... EIP-712 domain ... */
  },
  message: {
    /* ... EIP-712 message ... */
  },
  primaryType: "Permit",
  types: {
    /* ... EIP-712 types ... */
  },
};

aeonClient.requestSimulatedTransaction("evm-typed-data", {
  chain: "ethereum",
  userAddress: "0xUSER_ADDRESS",
  typedData: typedData,
  // contractAddress: "0xCONTRACT_THAT_VERIFIES_SIGNATURE" // if applicable
});

// Later, to process and get assembled data:
// const assembledInteractionData = await aeonClient.build();
```