To this day still covered by the free tier whereas on Google it went overnight from free to $300+/month.
I can’t quite recall if you need to be registered as an Apple Developer to use it (probably).
[1]https://developer.apple.com/documentation/mapkitjs
Rereading OP I realise the question was about APIs rather than necessarily web-based mapping (which is how I initially had read it)
To this day still covered by the free tier whereas on Google it went overnight from free to $300+/month.
I can’t quite recall if you need to be registered as an Apple Developer to use it (probably).