Today in things that probably don't need to be an API, but I've made because I can: fangthis.zone
Put simply, send it a URL, and it can defang (make harmless) or refang (make harmful) a URL. Why? Just because, and also because a colleague of mine was using OpenAI to do the same job
Getting started is easy!
Defang (make harmless): https://de.fangthis.zone/?url=https://example.com
Refang (make harmful): https://re.fangthis.zone/?url=hxxps://example[.]com