FastRI is an alternative to the ri command-line tool (used for browsing Ruby’s stdlib and third-party API docs). It is much faster, and also allows you to offer RI lookup services over DRb. FastRI is smarter than ri, and can find classes anywhere in the hierarchy without specifying the “full path”. FastRI can perform full-text searching. Its RubyGems support is better than ri’s, and it knows which gem a method/class definition came from.