So i use it, usually to help me in attacks to try bypass WAFs.
0d1n is a tool for automating customized attacks against web applications, is made in C with libCurl.
You can do:
*brute force passwords in auth forms
*diretory disclosure ( use PATH list to brute, and find HTTP status code )
*test list on input to find SQL Injection and XSS vulnerabilities etc...
more info:
https://github.com/CoolerVoid/0d1n/