You can use the Shields.io service with the API endpoint generated by your repository's api directory. For example, the URL https://raw.githubusercontent.com/upptime/upptime/master/api/google/uptime.json has the following JSON schema:

You can use the Shields.io service with the API endpoint generated by your repository's api directory. For example, the URL https://raw.githubusercontent.com/upptime/upptime/master/api/google/uptime.json has the following JSON schema: