Proof continuity without an account, an email, or a password.

Create a lemma.id on this device, then mint a signed presentation for this site. About 15 seconds.

Create your lemma.id

Works with Face ID, Windows Hello, or your fingerprint. Nothing about you leaves the device.

✓ Your lemma.id is ready on this device.

Now verify a presentation for this site.

lemma.id runs on its own product. Your device signs a proof; this site verifies it locally and learns nothing else about you.

Sign in with lemma.id

No form to fill. No verification email to wait for.

Sign in to open your manager.

Your lemma.id signs a proof on this device; the manager opens only for a verified proof.

Sign in with lemma.id

Don’t have a lemma.id yet? Create one in 15 seconds.