A better way to build auth
Passwordless login, passkeys, OAuth, and sessions — auth infrastructure that scales from your first user to Fortune 100 customers.
Color
Brand
Blue
#348CFF
Actions, links
Ink
#1D1D1D
Text, dark base
Lime
#E6FD13
Highlight, emphasis
Off-white
#FBFAF9
Warm page canvas
Pastel accents
Surfaces & semantic
Dark elevated
#262626
Dark cards
Text 2
#525151
Secondary text
Typography
display · Booton
Build auth
≈ Space Grotesk600
h2
A better way to build
22px600
body
Passwordless login, passkeys, OAuth, and sessions for developers.
15px400
mono · Chivo
session_jwt: "eyJhbGciOiJ…"
Chivo Mono
Components
Buttons
Auth methods
Magic link
OTP
Passkey
OAuth
Signature · Login
Enter an email → Continue → one-time passcode → Signed in. The full passwordless flow.