The Kittn API uses the following error codes:

Error Code Meaning
400 Bad Request -- Your request sucks
401 Unauthorized -- Your API key is wrong
403 Forbidden -- The kitten requested is hidden for administrators only
404 Not Found -- The specified kitten could not be found
405 Method Not Allowed -- You tried to access a kitten with an invalid method
406 Not Acceptable -- You requested a format that isn't json
410 Gone -- The kitten requested has been removed from our servers
418 I'm a teapot
429 Too Many Requests -- You're requesting too many kittens! Slow down!
500 Internal Server Error -- We had a problem with our server. Try again later.
503 Service Unavailable -- We're temporarially offline for maintanance. Please try again later.