Idk what the fuck happened, but for some reason the API I was working with just started to refuse to connect.

So I try to ping the page, and the ping is below 1ms. Look at ip 127.0.0.1 Fuck me I guess.

Does someone know what could cause something like this?

Just that I understand it correctly.

You ping an external API service on a non-local/remote machine and get 127.0.0.1?

Guess someone pulled the plug.

127.0.0.1 is a regular, assignable IP.

Hence you can just put it in any DNS server which allows private IP Addresses.

127.0.0.1 is localhost loopback address. Use nslookup (on windows) or some similar tool on Linux to determine what dns server resolves url of api to this ip.
Then you can start looking into it.

I'd say a prank or a misunderstanding on how the internet works. Configuring a domain to point to a localhost address gives a whole new meaning to "It works on my machine" though.