How is an API key typically passed in an HTTP request?

As a query parameter in the URL
In the request body as JSON data
As a request header in the HTTP request
As part of the URL path

An API key is typically passed in an HTTP request as a request header. This method of transmission is more secure than other options, as it keeps the API key hidden from the URL and request body. It is common practice to include the API key in the headers of the HTTP request for authentication and authorization purposes.

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