The Version 1.0 of Zoho CRM APIs are in the End-of-Life period and will be deprecated on Dec 31, 2018. We recommend you to check out the new and better API 2.0.
API Endpoints for different Data Centers
Zoho CRM API supports multiple Data Center (DC) deployment that helps you manage and distribute your service across different geographical regions.
The following are the API endpoints to be used based on multiple DC.
EU
https://crm.zoho.eu/
CN
http://crm.zoho.com.cn/
Other Data Centers
https://crm.zoho.com/
Note:
You can find the user's DC from your browser URL.