Google Maps API free is only for public app with limits of 2500 requests from webservices and 25 pageviews.
For any internal application, Google understands that it is in production, so it should contract the license even if it is within the limits of Free.
I recommend developers align with TOS (term services) because Google Compliance takes an hour to complete, and I've seen many applications being hacked in addition to having to pay for what was used illegally.
I recommend MAPLINK to acquire the API link
For me, I was the only one who was able to clarify all technical issues and not just force an API sale. Besides being the largest partner of Google MAps in Latin America and with that practice better prices. What other resale is just a reseller of half a dozen vendors wanting to get along.