| /cat?type=:type | Will return a random cat with image :type (xsmall, small, medium or square) | Random cat with type |
| /cat?filter=:filter | Will return a random cat with image filtered by :filter (blur, mono, negate or custom) | Random cat filtered |
| /cat?filter=custom&brightness=:brightness&lightness=:lightness&saturation=:saturation&hue=:hue | Will return a random cat with image filtered by :brightness, :lightness, :saturation and :hue | Random cat filtered |
| /cat?filter=custom&r=:red&g=:green&b=:blue | Will return a random cat with image filtered by :red, :green and :blue | Random cat filtered |
| /cat?width=:width or /cat?height=:height | Will return a random cat with :width or :height | Random cat with custom size |
| /cat?html=true | Will return a random cat in a HTML page, usefull for Twitter or Facebook embedded render | Random cat in HTML |
| /cat?json=true | Will return a random cat in a JSON object | Random cat in JSON |
| /cat/gif/says/Hello?filter=mono&fontColor=orange&fontSize=20&type=square | Mix 'em all :D | Combo |