How do I register an IPv6 address?

[mikeymike81]

My ISP has updated and now I have an IPv6 address instead of an IPv4 address. The companies house register page only seems to recognise IPv4 as it says there is an error when I put the IPv6 in.

How can I register an IPv6 address for API access?

[csmith]

You don’t have to register an IPv6 IP for access. The whitelist functionality provided in the API registration is only really useful if you are trying to protect your API key if you are using a browser-run Javascript client. See

IP range whitelisting

The IP address whitelisting is generally for Javascript clients only, where the API key will be visible to the client and therefore not “secret”. Thus, it doesn’t make sense to use this for server-side API access. If you’re calling the API from the server and not client-side javascript, then your API key remains private and you don’t need to employ whitelisting. Have you implemented client or server-side calls to our API?

At the moment we do not support IPv6 whitelisting as complete end-to-end IPv6 infrastructure is rare, and we have always found that browser based Javascript accesses to our API do not come from IPv6 only hosts (or at least, we always get an IPv4 address).

Hope that helps.