?api_key=... or ?token=..., rather than in a header. Use this to attach those parameters automatically so you do not have to add them to each request by hand.
Fields
Sample data
This feature adds authentication to a live HTTP connection rather than transforming data, so there is no before/after to show. A typical configuration that attaches an API key looks like this:
With this setting, a request to
https://api.example.com/orders is sent as https://api.example.com/orders?api_key=your-api-key.