> ## 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 Custom Field options

> List dropdown options on a Trello Custom Field.

`trello.listCustomFieldOptions` lists the choices defined for a list-type Custom Field.

```ts automations/list-trello-custom-field-options.automation.ts theme={null}
import { automation, onDashboardRun } from "automate.ax"
import { trello } from "automate.ax/trello"

export default automation("List Trello Custom Field options", () => {
  onDashboardRun({ title: "List Trello Custom Field options" })
  trello.listCustomFieldOptions({ customFieldId: "custom-field-id" })
})
```

Provide the list field's stable `customFieldId`. Optional second argument `{ account }` selects a Trello binding.

Returns `Signal<TrelloCustomFieldOption[]>` with each option's `id`, `customFieldId`, `text`, `color`, and `position`.