As of 2024-08-14 21:17:15 UTC, the API appears to be fully dead, and blocked by CloudFlare. This is limited to specifically the API; no other services appear to be down.
I've verified this on my IP, a VPN, and two other people on different IPs (and different countries) have also confirmed. SmokeDetector and the SOBotics bots are also dead, most likely as a result of whatever this is.