Articles in this category DMS Web Hook and API Description Hello, We offer several different API and Webhook interfaces. We do not publish this information for security reason. If you are a client, submit a ticket to support@dmsgs.net and we'll follow up ... QWIK_API This is an brief API that gives basic functionality to our application through an application programming interface. GA ListSending Engine API V3 This is the API Documentation, Version 3 for the GA Listsend System Here is the messaging API HTTP Submission API