So these are the usage limits [0]:<p>---<p>2D Tiles and Street View tiles<p>Maximum 6,000 queries per day, calculated as the sum of all requests for all applications using the credentials of the same project.<p>---<p>Photorealistic 3D Tiles<p>Maximum 300 root tileset queries ["map-loads"] per day. This is calculated as the sum of all requests for all applications using the credentials of the same project.<p>Maximum 250,000 renderer’s tile requests per day. This is calculated as the sum of all requests for all applications using the credentials of the same project.<p>Rate limit is 12,000 queries per minute for the tile renderer.<p>---<p>The Map Tiles API documentation does not contain a "Usage and Billing" section, which seems to imply that it is free to use, bound to the above mentioned limits.<p>So the only thing to worry about is how Google showed us couple of years ago how relentless it starts to charge for a previously free service -- the Google Maps Javascript API -- after it sees that enough developers got technically invested into Google Maps.<p>If you open the inspector on any of the examples [1] you'll see how many tile fetches it triggers per second.<p>While my comment contains some criticism, I'm really excited for this new offering.<p>[0] <a href="https://developers.google.com/maps/documentation/tile/usage_limits?hl=en" rel="nofollow">https://developers.google.com/maps/documentation/tile/usage_...</a><p>[1] <a href="https://storage.googleapis.com/gmp-maps-demos/3d-tiles/index.html#orbit" rel="nofollow">https://storage.googleapis.com/gmp-maps-demos/3d-tiles/index...</a>