Authentication for builders

Your users deserve a bulletproof front door.
You deserve to not build it yourself.

SpartanAuth handles MFA, WebAuthn, passwords, and account flows — so you can ship your product instead of debugging login pages.

Stop building auth from scratch

Enterprise-grade authentication.
Ten minutes to integrate.

Drop-in web components. Real MFA and WebAuthn. A dashboard for your team. Authentication that just works.

Built for the AI era

AI can build your app.
Don't let it build your auth.

Cursor, Copilot, and Bolt are amazing for building fast — but authentication needs security expertise. SpartanAuth gives you that in a drop-in package.

20%

of breaches start with
compromised credentials

— IBM

$70

average cost per
password reset

— Forrester

99.9%

of automated attacks
blocked by MFA

— Microsoft

1 in 3

purchases abandoned
due to login friction

— MasterCard

Everything your auth needs. Nothing it doesn't.

Focused on what matters: secure authentication, great UX, and easy integration.

🔐

Multi-Factor Authentication

TOTP authenticator apps, WebAuthn/passkeys, and magic links. Give your users real security without the friction.

🧩

Drop-In Web Components

Framework-agnostic login, registration, and account management components. Style them with CSS to match your brand.

🔄

Complete Account Flows

Password reset, email verification, account recovery — the flows everyone forgets until a user is locked out at 2am.

👥

Admin Dashboard

Manage users, admins, and security policies. See who's logging in, reset credentials, and enforce MFA — all from one place.

Built in Go

Cloud-native, 12-factor compliant. Single binary deployment. Handles thousands of auth requests with minimal resources.

Add auth in three steps

No PhD in security required.

1

Connect SpartanAuth to your app

Point your app at your SpartanAuth instance. One API key, one config file.

// That's it. Seriously. <spartan-login api-url="https://auth.yourapp.com" app-id="your-app-id" />
2

Style the components

Our web components use CSS custom properties. Make them look like your app, not ours.

spartan-login { --sa-primary: #your-brand-color; --sa-radius: 8px; --sa-font: 'Inter', sans-serif; }
3

Ship it

Your users get MFA, passkeys, password reset, and account management. You get to work on your actual product. Everyone wins.

Coming Soon

Be first in line.

SpartanAuth is launching soon. Join the waitlist for early access, founding-member pricing, and updates as we ship.

Join the Waitlist →

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