Passkey Directory
Mastodon
Mastodon supports security keys as a second factor (WebAuthn/U2F-style) for accounts that have TOTP enabled.
MFA supportCommunication
Domains
mastodon.social
Last verified
Dec 10, 2025
Date when passkey support was last confirmed
Sign-in mode
MFA Only
Passkeys used as a second factor alongside password
Platforms
web
Notes
TOTP must be enabled to use a security key.
Documentation
Sources