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The Google Maps API was free for commercial use, provided that the site on which it is being used is publicly accessible and did not charge for access, and was not generating more than 25,000 map accesses a day. [135] [136] Sites that did not meet these requirements could purchase the Google Maps API for Business. [137]
An application programming interface (API) key is a secret unique identifier used to authenticate and authorize a user, developer, or calling program to an API. [1] [2]Cloud computing providers such as Google Cloud Platform and Amazon Web Services recommend that API keys only be used to authenticate projects, rather than human users.
The APIs provide functionality like analytics, machine learning as a service (the Prediction API) or access to user data (when permission to read the data is given). Another important example is an embedded Google map on a website, which can be achieved using the Static Maps API, [1] Places API [2] or Google Earth API. [3]
Google App Engine requires a Google account to get started, and an account may allow the developer to register up to 25 free applications and an unlimited number of paid applications. [24] Google App Engine defines usage quotas for free applications. Extensions to these quotas can be requested, and application authors can pay for additional ...
Some Google products do not require an account, including Google Search, YouTube, Google Books, Google Finance and Google Maps. However, an account is needed for uploading videos to YouTube and for making edits in Google Maps. YouTube and Blogger maintain separate accounts for users who registered with the services before the Google acquisition.
Overlaying GPS tracks on Google Maps and any street maps sourced from Google.com via its API, will lead to a similar display offset problem, because GPS tracks use WGS-84, and Google Maps uses GCJ-02. The issue has been reported numerous times on the Google Product Forums since 2009, [47] with 3rd party applications emerging to fix it. [48]
Google Maps – mapping service that indexes streets and displays satellite and street-level imagery, providing directions and local business search. Google My Maps – a social custom map making tool based on Google Maps. Google Earth – virtual 3D globe that uses satellite imagery, aerial photography, GIS from Google's repository.
TMS is most widely supported by web mapping clients and servers; although there is some desktop support, the Web Map Service protocol is more widespread for enterprise mapping applications. The OpenLayers JavaScript library supports TMS natively, while the Google Maps API allows URL templating, which makes support possible for developers.