The EAPI is based on simple HTTP requests. The design philosophy is to enable as much functionality as possible without having to involve, for example, XML parsers, so data is by default returned to you in a simple pipe-delimited (|) format, and you can perform most actions by simply using query parameters.

In general, it is not intended that you ever submit an HTML form to any URLs in this API, or that you link to the URLs from web pages. You should be using an HTTP client library, e.g. Curl (PHP/command line), LWP(Perl), or HTTPClient(Java). This applies to all calls which use authentication. In other words, do not put up a web page on the Internet with your username/password as hidden fields in a form.

Please remember to URL-encode all parameters passed! Don't reinvent the wheel - rather use one of the many libraries available. GET requests are allowed, but we strongly recommend using POST requests, especially if submitting a message to a large number of recipients (there can be limits on the size of GET requests).