It’s always something I’ve shied away from! There is only one of me and running an API (keeping it stable, sorting out tokens/billing/etc. infrastructure, protecting it from overuse, all of that) is honestly not something I have the time, the skill or particularly the inclination to do.

But if it’s a fun hobbyist thing that you’re just using for personal purposes I should think I could throw a URL at you, with the understanding that it can and will break at any point. Is it basically A–B routing you’re looking for?

Yeah, just short little a-b routing for getting around town while avoiding getting hit by cars :p.

In case something breaks it's always fine, I can take the less friendly routes anyway.