Consume any publically available API ( e.g. https://github.com/public-apis/public-apis or any other publically available dataset/api) and display the result.

Create a GitHub Repo.
Create a pipeline in Jenkins to build code automatically when the code is updated in the Github Repo (latest code should be downloaded on Jenkins server and build it locally).

1. Create a pipeline and send an email with status of the build based on code change.
2. Send a Slack notification on the build status.