I just happened to scan a OTP Auth QR code using the Camera app on a device running iOS 11 and was surprised to see that iOS prompted me to open the URL in a third-party app called Digidentity.
Hopefully this is something that can be integrated into 1Password when iOS 11 is released?
The QR code which I scanned contained a URL beginning in: otpauth://totp/
1Password Version: Not Provided
Extension Version: Not Provided
OS Version: Not Provided
Sync Type: Not Provided