With the exception of the world proxy, ProxyMesh does not provide static IPs. Each of the other proxy servers has a set of rotating IPs, one of which is chosen at random for each request. However, you can control the IP address that is chosen using custom headers or authentication strings.
If you need an IP address in your application settings or configuration, you can find the IP address of a proxy server by clicking on it from your account dashboard. But this is not the IP address that remote sites will see. The remote site will still see one of the rotating IP addresses.
We don't recommend using the proxy server IP in your settings, as they are subject to change. We recommend using the proxy server hostname if possible, since it will always point to the correct IP address for the proxy server. For details, please see the ProxyMesh API article.