[1] OAuth | Slack (Slack 著, 版) <https://api.slack.com/docs/oauth>
X-Accepted-OAuth-Scopes lists the scopes that the action checks for.
[2] OAuth | GitHub API ( 版) <https://developer.github.com/v3/oauth/#scopes>
[3] Authenticating with the Meetup API - Meetup ( 版) <http://www.meetup.com/meetup_api/auth/>
Note, when making a request you should be able to see which scopes have been enabled and are required using in the following headers
X-OAuth-Scopes: basic, messaging
X-Accepted-OAuth-Scopes: basic, messaging