In general, you can add just about anything you want to a Maps API map. There are some conditions around this: for example, if you are using the free access to the Maps API, then the additional content you provide must also be free to the general public.
And of course you need to have legitimate access to whatever data you're providing, including the right to display that data to your map's users. But that's a matter between you and the data provider, not Google. To learn more, read the Google Maps APIs Terms of Service <https://developers.google.com/maps/terms>. In particular, search the page for "*Your Content*", but you should definitely read the whole thing to understand the terms. And naturally, if in doubt, it is good to consult a lawyer. But the terms are mostly written in plain English, not "legalese", so they are pretty easy to understand. On Wed, May 3, 2017 at 10:06 AM, Zachary Earle <zearl...@gmail.com> wrote: > I'd like to use Google Maps as the base layer for a project. However, > instead of using their Directions API to draw a route on the map, I'd like > to use a third-party service. Is this a violation of Google's Terms of > Agreement? I'm aware that I cannot use Google Maps data without using a > Google Map - but for the reverse situation - are there limitations on what > 3rd party information I can display on a Google map? > > -- > You received this message because you are subscribed to the Google Groups > "Google Maps JavaScript API v3" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to google-maps-js-api-v3+unsubscr...@googlegroups.com. > To post to this group, send email to google-maps-js-api-v3@googlegr > oups.com. > Visit this group at https://groups.google.com/group/google-maps-js-api-v3. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Google Maps JavaScript API v3" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-maps-js-api-v3+unsubscr...@googlegroups.com. To post to this group, send email to google-maps-js-api-v3@googlegroups.com. Visit this group at https://groups.google.com/group/google-maps-js-api-v3. For more options, visit https://groups.google.com/d/optout.