scr.im's API
Just issue a POST to
http://scr.im/xml/
with data email (email address) and scrim (optional keyword for custom URL)
You should get an XML result like:
<?xml version="1.0" encoding="UTF-8"?> <scrim> <result>Success</result> <email>joe@email.com</email> <scrim>15kj</scrim> <url>http://scr.im/15kj</url> </scrim>