When Gemini started using Authy for 2FA services, all Gemini accounts were provided with an Authy ID.

You can download the Authy app on the Authy Creation page and create an account under the verified phone number on your Gemini account. Once you do so, your token should appear.

For an even more secure and streamlined login experience, consider setting up passkeys or hardware keys. This eliminates the need for traditional 2FA methods, providing a faster and more user-friendly authentication process.