From Winamp Developer Wiki
Here you can find some of the technical documentation about some of the SHOUTcast system from accessing the SHOUTcast Radio Directory to the streaming protocol used as well as some legacy information for historical purposes.
- SHOUTcast Radio Directory Partner API Documentation - Reference for accessing information from the Radio Directory
- SHOUTcast Radio Authhash Partner API Documentation - Reference for accessing the SHOUTcast 2 Authhash Management API
- SHOUTcast / Ultravox 2.1 Protocol Details - Reference for anyone wanting to implement clients or servers supporting the SHOUTcast 2 protocol