| Passwordless sign-in and registration | A QR code or a button instead of a password; a new user signs up with the same action | Sign-in | We ran it: sample, video |
| Sign-in and channel linking | The user is signed in, and your product gets a channel for notifications | Sign-in; a server-to-server transaction where there is no redirect | We ran it: the samples/dotnet/inproc/confirmation sample |
| Second factor and step-up | A fresh confirmation before a sensitive operation | A repeated sign-in with an auth_time check; to confirm an action, a server-to-server transaction with expected_identities | We ran it: sample, video |
| Replacing SMS codes | The same flow without paying for every message | Sign-in | Works on the current version |
| Leads and feedback without CAPTCHA | A confirmed contact instead of an address typed by hand | Sign-in without opening a session | We ran it: confirmed form submission on the Telegram channel |
| Account recovery | A linked channel instead of a chain of emails and codes | Sign-in through a linked channel | Works on the current version |
| Sign-in surfaces | Sign-in on a computer, a phone, a TV and a kiosk | Sign-in; a server-to-server transaction where there is no browser | We ran it: videos on a desktop, on a phone, on a TV |
| Smart TV and keyboard-free surfaces | Sign-in where there is nothing to type on | Sign-in; a server-to-server transaction exchanged for an id_token | We ran it: Nova Stream |
| Approving AI-agent actions | A risky agent step runs only after a person agrees | Server-to-server transaction | We ran it: the samples/dotnet/inproc/agent-approval sample, the Claude Code mod |
| Place and identity | Confirmation that the person is in the room | Server-to-server transaction | Works on the current version; you build it |
| Stronger sign-in with a chain of channels | The sign-in is confirmed in several channels | Sign-in in several channels | Works on the current version; you build it |
| Resilience to a personal-data leak | Your database holds no identifiers that lead back to a person | Channel identity store | Works on the current version; you build it |
| Honest voting on any website | Each vote is confirmed in the voter’s messenger | Server-to-server transaction | Works on the current version; you build it |