Welcome to the eFax Enterprise API

This highly scalable, standards-based, RESTful application programming interface (API) exposes the functionality of the eFax Corporate® platform to key trusted partners who will use it to integrate fax capability into their own applications.

There are two APIs available: the Fax Services API and the Admin API. The Fax Services API provides calls for supporting fax transmissions, downloading fax images and metadata, using webhooks for secure inbound and outbound fax notifications, deleting faxes, and using search parameters to retrieve lists of sent and received faxes. The Admin API supports administration functions for eFax Corporate accounts, including account provisioning and maintenance, number management, and managing authorizations for using the Fax Services API.