curl --request GET \
  --url https://actions.zapier.com/api/v2/ai-actions/{ai_action_id}/ \
  --header 'x-api-key: <api-key>'

{
  "id": "<string>",
  "description": "<string>",
  "account_id": 123,
  "authentication_id": 123,
  "app": "<string>",
  "action": "<string>",
  "params": {},
  "meta": {
    "params": {},
    "app_label": "<string>",
    "action_label": "<string>",
    "authentication_label": "<string>",
    "app_needs_auth": true
  },
  "needs": [
    {
      "key": "<string>",
      "label": "<string>",
      "required": true,
      "prefill": "<string>",
      "custom_field": true,
      "depends_on": [
        "<string>"
      ],
      "choices": [
        {
          "key": "<string>",
          "label": "<string>",
          "sample": "<string>"
        }
      ],
      "help_text": "<string>",
      "searchfill": "<string>",
      "capabilities": [
        "<string>"
      ],
      "input_format": [
        "<unknown>"
      ],
      "language": "<string>",
      "parent_key": "<string>",
      "regex": "<string>",
      "alters_custom_fields": true,
      "default": "<string>",
      "placeholder": "<string>",
      "format": "<string>",
      "list": true
    }
  ]
}