Returns details of a specific webhook source.
Requires knowledge:view permission.
Bearer token using an API key (format nl_live_* or nl_test_*)
Webhook source details
Unique identifier
Owning account ID
Parent knowledge base ID
Webhook source name
Whether the webhook source is active
Ordered list of execution steps
Input variables for the step flow
URL to fetch content from
HTTP method
HTTP headers
Request body
Authentication configuration
Polling interval in minutes
Request timeout in milliseconds
Timestamp of the last trigger