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

> ## Agent Instructions
> Automate.ax automations are TypeScript programs.
> Use Bun for installation and command examples.
> Use Automate.ax for the product name and automate.ax for the package, CLI, and domain.
> Treat documented public APIs as current; do not invent transitional or deprecated names.

# Get Bank Account By V1 Id

> Returns details of a [BankAccount](entity:BankAccount) identified by V1 bank account ID.

`square.getBankAccountByV1Id` returns details of a [BankAccount](entity:BankAccount) identified by V1 bank account ID.

## Example

```ts automations/square-get-bank-account-by-v1-id.automation.ts theme={null}
import { automation, onDashboardRun } from "automate.ax"
import { square } from "automate.ax/square"

export default automation("Get Square Bank Account By V1 Id", () => {
  onDashboardRun({ title: "Get Square Bank Account By V1 Id" })

  square.getBankAccountByV1Id({
    v1BankAccountId: "v1_bank_account_id",
  })
})
```

## Inputs

Every input accepts a compatible signal. It requires `BANK_ACCOUNTS_READ`.

| Field             | Type     | Required | Default | Description                                                                                                                                                                                                                                                                 |
| ----------------- | -------- | -------- | ------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `v1BankAccountId` | `string` | Yes      | —       | Connect V1 ID of the desired `BankAccount`. For more information, see [Retrieve a bank account by using an ID issued by V1 Bank Accounts API](https://developer.squareup.com/docs/bank-accounts-api#retrieve-a-bank-account-by-using-an-id-issued-by-v1-bank-accounts-api). |

Use the official [GetBankAccountByV1Id reference](https://developer.squareup.com/reference/square/bank-accounts-api/get-bank-account-by-v1-id) for provider field semantics and limits.

## Output

Returns the official `Square.GetBankAccountByV1IdResponse` response as a codec-safe object. Square integer money amounts remain `bigint` values.