Request limits for


Please remember and understand that each of your requests to our API generates multuple requests to our databases. That's why we ask to set proper timeouts for your requests and use proper error handling for cases when server returns an error (error message, HTTP error or HTML page with error).
For example:
  • If server returns ERROR_NO_SLOT_AVAILABLE make a 5 seconds timeout before sending next request.
  • If server returns ERROR_ZERO_BALANCE set the timeout to 60 seconds.
  • After uploading a captcha wait a least 5 seconds (10-20 for recaptcha) and only then try to get the answer.
  • If captcha is not solved yet - retry in 5 seconds.
If your timeouts are configured incorrectly your account or IP address will be temporary blocked and server will return an error. See the list of error codes in the table below.