Keybase provides key directory service, basically “it maps your identity to your public keys, and vice versa”. Since it has a pgp key directory service, below are snippets that we can use to play with keybase and gpg2.

• List gpg keys:
  • keybase pgp list
  • Using gpg : gpg --list-keys
• List secret gpg keys:
  • keybase pgp list
  • Using gpg: gpg --list-secret-keys
• Get you public key
  • keybase pgp export > public.key
  • Using gpg: gpg --export -a email-id
• Get your private key
  • keybase pgp export -s > private.key
  • Using gpg: gpg --export-secret-key -a email-id > private.key
• Import your in local gpg keyring
  • gpg --import private.key
• Use gpg to edit key, for adding or removing identities:
  • gpg --edit-key myname@keybase.io

  • gpg --edit-key email@id.here

  • List the user ids:
    • gpg> uid
  • Select the user id:
    • gpg> uid 2
  • Adding new uid to private key
    • gpg> adduid
  • Incase you want to remove some id.
    • gpg> revuid
  • Save the changes
    • gpg> save
• Update the details with keybase

  • keybase gpg update

  • It should say:

    ▶ INFO Posting update for key xxxxxxxxxxxxxxxxxxx.
    ▶ INFO Update succeeded for key xxxxxxxxxxxxxxxxxxxxx.
    

For more gpg commands: https://medium.com/@acparas/gpg-quickstart-guide-d01f005ca99

Reference:

• Keybase command line tool in-build help, Usage : keybase pgp help
• https://www.nico-maas.de/?p=1522
• https://www.ahmadnassri.com/blog/github-gpg-keybase-pgp/
• https://coderwall.com/p/tx_1-g/gpg-change-email-for-key-in-pgp-key-servers