import { requestSpendPermission } from "@base-org/account/spend-permission";

const permission = await requestSpendPermission({
  account: "0xUserBaseAccountAddress",
  spender: "0xAppSpenderAddress",
  token: "0xTokenContractAddress",
  chainId: 84532,
  allowance: 1_000_000n,
  periodInDays: 30,
});

console.log("Spend Permission:", permission);
Defined in the Base Account SDK
Constructs an EIP-712 payload for a spend permission and prompts the user to sign it. Returns a SpendPermission object containing the signature and normalized permission data you can later use to spend or register onchain.

​
Parameters

​
account
address
required
Smart account that this spend permission applies to.
​
spender
address
required
The spender that can move funds from account within the configured limits.
​
token
address
required
Token address. Supports ERC-7528 native token address and ERC-20 contracts.
​
chainId
number
required
Chain ID where this permission is valid.
​
allowance
bigint
required
Maximum amount that can be spent during each period (in wei).
​
periodInDays
number
required
Length of each allowance period in days.
​
start
Date
Start time when the spend permission becomes valid. Defaults to now.
​
end
Date
Time when the spend permission expires. Defaults to never.
​
salt
string
Arbitrary salt to differentiate otherwise identical permissions. Hex string. Defaults to a random value.
​
extraData
string
Arbitrary data to attach to the permission. Hex string. Defaults to 0x.

​
Returns

​
permission
SpendPermission
Signed spend permission payload.
import { requestSpendPermission } from "@base-org/account/spend-permission";

const permission = await requestSpendPermission({
  account: "0xUserBaseAccountAddress",
  spender: "0xAppSpenderAddress",
  token: "0xTokenContractAddress",
  chainId: 84532,
  allowance: 1_000_000n,
  periodInDays: 30,
});

console.log("Spend Permission:", permission);

​
Error Handling

Always wrap the call in a try-catch block to handle these errors gracefully.