Zoho Cliq API Rate Limit

Zoho Cliq API Rate Limit

Hi,

According to Zoho Cliq API Documentation: 

"We have system limitations just to protect from denial of service (DOS) attacks. There is no usage limit on the API".

During heavy usage I am getting status code 400:

{"code":"request_limit_exceeded","message":"You have exceeded the URL throttle limits."}

Could you please provide me with the rate limit so I can configure the sending on my side to respect the limit.

Thank you.