Obtain one time passwords from alfred.

• AlfredApp (Alfred 3 & 4 tested)
• Brew package manager
• Python3 (SteamGuard OTP support)

$ brew install oauthtool

Now download the latest workflow and install it.

You could either export it from the existing applications you're using or generate a new secret from the website's user control panel.

For SteamGuard OTP, follow this guide to obtain your secret key.

Then insert your totp secret codes into the macOS keychain alfred-totp.keychain like so:

$ security -i
> create-keychain alfred-totp.keychain
> set-keychain-settings alfred-totp.keychain
> add-generic-password -a alfred-totp -s "name of service" -w "totp secret" alfred-totp.keychain
> # repeat above command as needed, crtl-c to quit.

In alfred just type otp then start typing the name of your service.

The TOTP code will be pasted to the top most app by default and copied to the clipboard on option return.

If you would like to display all the service's passwords at once, configure the object (script filter) of alfred-totp's workflow as below

• Note: Icons reflected in the results are located at workflow's icon directory and follow service name as entered in the keychain.

Thanks to waynehoover and aria.ia for the code on how to list items from macOS keychain.