Prerequisites ? Azure Subscription PostMan / Fiddler / VS Code with Rest Client Extension ( https://marketplace.visualstudio.com/items?itemName=humao.rest-client ) A HTTP triggered Logic app (this will serve as the HTTP endpoint that we will secure using API Management, you can also do this with Azure Functions, Web API's/Web Services, etc.) What ? API Management (APIM) helps organizations publish APIs to external, partner, and internal developers to unlock the potential of their data and services. You can use API Management to publish APIs to external, partner, and employee developers securely and at scale. In this blog, we will be configuring APIM so that we can use it to secure our Logic App HTTP Endpoint from public access. What are subscriptions? When you publish APIs through API Management, it's easy and common to secure access to those APIs by using subscription keys. Developers who need to consume the published APIs must include a valid subscript