How does the Licensing API use OAuth?
Your app (the “Consumer” in OAuth terms) needs an OAuth access token so that it can use the Licensing API (the Service Provider). You (the User) can ask the Chrome Developer Dashboard to give you an access token for each app that you upload. When the dashboard generates this access token on your behalf, it uses “anonymous” for both the consumer key and secret. If you want to use your own consumer key and secret, you can use an OAuth tool such as the OAuth Playground to get the access token.