Introduction to our REST API documentation

> Find the Flowmailer API documentation here

The Flowmailer API is a RESTful API. Everything you can manipulate is a resource with its own unique URL. The API calls are identified by their resource URL and HTTP method.

The following HTTP methods are used:

  • GET for retrieving a resource
  • PUT for updating a resource
  • POST for creating a resource
  • DELETE for deleting a resource

The requests and responses for all requests (except the OAuth2 authentication calls) are in JSON format. There is no guarantee about the field ordering in JSON responses.

All requests should contain the Accept header with the value:


The OAuth2 authentication requests are in application/x-www-form-urlencoded format. The authentication responses are in JSON format.