Listening hostname/adapter

By default, Mockoon's mock APIs will listen to all available network adapters, often described as 0.0.0.0. It means that your mock server will be available on all your adapter as localhost, 127.0.0.1, your local IP address 192.168.x.x, etc. You can configure each environment to listen on 127.0.0.1, and thus localhost too, by checking a simple option.

Open the Environment Settings by clicking on the cog in the upper right corner:

Enable the Localhost Only option by ticking the checkbox.

Your mock API will now be available on https://localhost:{port} and https://127.0.0.1:{port} only.