[wcedmisten]

OpenStreetMap tile servers aren't really meant to be used for this. They do allow some use, but are also subject to throttling if your application puts too much load on their servers.

> However, OpenStreetMap’s own servers are run entirely on donated resources. They have strictly limited capacity. Heavy use of OSM tiles adversely affects people’s ability to edit the map, and is an abuse of the individual donations and sponsorship which provide hardware and bandwidth. As a result, we require that users of the tiles abide by this tile usage policy.

https://operations.osmfoundation.org/policies/tiles/