You communicate with Xively using REST.
Xively API Base URL
The base URL for the Xively API is: https://api.xively.com
You can communicate with Xively using a variety of protocols via IPv4 or IPv6:
DNS versus IP
Because the IP address to which xively.com resolves can and may change, we strongly recommend that you resolve the base URL of the Xively API https://api.xively.com via DNS.
In cases where it is not possible to use DNS, you can use the following bare-IP address alternative: - IPv4: 188.8.131.52 - IPv6: 2001:470:1f10:333::2
Caution: Although we try to avoid changing these IP addresses, a change may be unavoidable. If this is the case, the new IPs will be published on this page with a note indicating the date of change.