Download Yubico Authenticator, then
File > Add.
Scan a QR code if a QR code is visible on the screen or manually enter the details. The QR code is usually a visual representation of the following address URL-encoded:
Credential name: the name of the provider (e.g.
Secret key (base32): the secret key (32 characters)
Credential type: usually TOTP, but can be HOTP
Number of digits: usually 6, but can be up to 8
Algorithm: usually SHA-1, but can be SHA-256
Require touch: enable
It's possible to convert OTP secrets stored in 1Password by editing the item's OTP field and parsing the URL as demonstrated above.