Notes on localhost testing
localhost key: 95594110d3bf7dc22abe5bcabc14279a
Please note: if you are using callbacks to test transferring images to your server, the URL of your callback routine uplink_url needs to be accessible over the internet, so you will not be able to test callbacks residing on localhost. However, uplink_url can be any routable URL.
The above key is for localhost[:port] not IP addresses. API Keys can be created for IP addresses if needed.