> ## 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 Invoice

> Retrieves an invoice by invoice ID.

`square.getInvoice` retrieves an invoice by invoice ID.

## Example

```ts automations/square-get-invoice.automation.ts theme={null}
import { automation, onDashboardRun } from "automate.ax"
import { square } from "automate.ax/square"

export default automation("Get Square Invoice", () => {
  onDashboardRun({ title: "Get Square Invoice" })

  square.getInvoice({
    invoiceId: "invoice_id",
  })
})
```

## Inputs

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

| Field       | Type     | Required | Default | Description                        |
| ----------- | -------- | -------- | ------- | ---------------------------------- |
| `invoiceId` | `string` | Yes      | —       | The ID of the invoice to retrieve. |

Use the official [GetInvoice reference](https://developer.squareup.com/reference/square/invoices-api/get-invoice) for provider field semantics and limits.

## Output

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