Zoho Campaign API Maximum Requests/Day

Zoho Campaign API Maximum Requests/Day

Folk,

I am trying to implement a logic where I need to check provided email is subscribed to which mailingList
and option to subscribe and unsubscribe.

What are the maximum requests/day for the following methods

https://campaigns.zoho.com/api/xml/listunsubscribe
https://campaigns.zoho.com/api/xml/listsubscribe
https://campaigns.zoho.com/api/getlistsubscribers
https://campaigns.zoho.com/api/getmailinglists
https://crm.zoho.com/crm/private/json/Contacts/getSearchRecordsByPDC


Thanks
Zulqarnain Hafeez
Wealth-X