An Application Programming Interface key (API key) is a unique identifier used to authenticate a user, developer, or calling program to an API. However, they are typically used to authenticate a project with the API rather than a human user. Different platforms may implement and use API keys in different ways.
The API key often acts as both a unique identifier and a secret token for authentication, and will generally have a set of access rights on the API associated with it.
Common APIs
Google Maps Platform products are secured from unauthorised use by restricting API calls to those that provide proper authentication credentials. These credentials are in the form of an API key – a unique alphanumeric string that associates your Google billing account with your project, and with the specific API
We’re going to test out using an API with a Plugin called Use Any Font. You need API key to connect to their (UseAnyFont) server for font conversion. The Lite (free) API key also limits you to only one font conversion.
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