Jet Admin can help you make your tool make requests to any Rest API you need to integrate to your workflow. The integrations Jet provides are ready-to-use business APIs such as Stripe, SendGrid, Zendesk, Slack, etc. (To reduce the time to get your internal tool talking to a Rest API to the minimum, use the Templates). To have the available APIs at hand, select Resources from the project menu to open the resource selection pane:
You can also implement your own custom API using API Builder. For instance, you can set up a GET request to display orders your customers made or a POST request to reset a password for a specific user.