> ## 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.

# List source fields

> List contact, location, and custom fields for a CloseBot source.

`closeBot.listSourceFields` discovers the field keys accepted by lead updates for one source.

```ts automations/list-closebot-fields.automation.ts theme={null}
import { automation, onDashboardRun } from "automate.ax"
import { closeBot } from "automate.ax/closebot"

export default automation("List CloseBot fields", () => {
  onDashboardRun({ title: "List source fields" })

  closeBot.listSourceFields({ sourceId: "source-id" })
})
```

## Inputs

Provide `sourceId`.

## Output

Returns contact, location, and custom-value field arrays with each field's name, key, and data type.