The Algo API uses the following error codes:

Error Code Meaning
400 Bad Request -- Your request was incorrect
401 Unauthorized -- Your API key is not present / invalid / past its monthly quota.
404 Not Found -- The specified endpoint could not be found.
406 Not Acceptable -- You requested a format that isn't json
429 Too Many Requests -- You're making too many requests. 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.