List available actions

Returns a list of all available actions, as well as their possible configuration parameters and required fields. Availability depends on the parent organization. This is the full catalog for your organization: which of these actions an individual event offers also depends on the event, as described below.

Event responses list only the IDs of the supported actions, not the action objects. To get the actions an event supports, call this endpoint and filter the list:

• If the event’s supported_action_ids field is present, keep only the actions it lists. An empty array means the event supports no actions. If the field is absent, the event declares no restriction, so skip this step. On a system event, the email notification action, system-send_notification_with_email, is exempt from this step.
• Drop any action whose required_event_output_parameters the event doesn’t emit, comparing on parameter. This step applies to every action, including the email notification action. A system event lists the parameters it emits in event_output_parameters. Custom event responses don’t list them, so for a custom event you can’t run this step in advance.