The PostalMethods Web-to-Postal API allows developers to easily send postal letters (snail mail) from applications. The service may be accessed from all common development environments through standard SOAP libraries. Native SOAP libraries, as well as third-party libraries, are available for Java, .NET, ASP, PHP, Perl, ColdFusion, etc.
This developer's guide will go through through the steps required to send out your first web-to-postal letter. It's assumed that you are acquainted with a development environment, and have a good grasp of building and testing applications in that environment.