This thing is awesome. Writing down here to note the syntax of how to send a JSON request to a REST API:
curl -u bhipple:$TOKEN -H "Content-Type: application/json" -X PATCH -d '{"location":"cmdline"}' "https://api.github.com/user"
Changes the location of the user to "cmdline" using this API.
Click the merge button:
https://developer.github.com/v3/pulls/#merge-a-pull-request-merge-button
The comment stream:
https://developer.github.com/v3/issues/comments/#list-comments-on-an-issue