SSO login complete — SAML for val@acme.com
{
"iss": "acme.authaz.com",
"sub": "usr_01HZX7...",
"aud": "acme-web",
"org": "org_acme",
"roles": ["admin","billing"],
"amr": ["saml","mfa"],
"exp": 1773292800
}Auth that gets out of your way. Login, permissions, and audit — built in, not bolted on. From your first commit to your first enterprise contract.
Production auth in hours, not sprints.
Drop in the SDK. Ship login. Add SSO, passkeys, and MFA when you need them. No SAML project. No sprint planning.
Security reviews already answered.
Audit trail, SOC 2-ready logs, tenant-scoped access — shipped with every integration. When enterprise IT asks, you already have the evidence.
Scales from one user to one million.
Multi-tenant by default. RBAC that grows with your product. No migration cliff when your biggest customer signs.
Every way to log in. From day one.
Password, passkey, magic link, OAuth, SAML, MFA, M2M keys, and agent identities — one API, one audit trail, one place to configure.
Authorization in one file.
Write your rules as code. Enforce them everywhere. Read the decision log when something goes wrong — no custom middleware.
policy "doc:edit" {
allow if subject.role == "admin"
allow if subject.id == resource.owner
allow if resource.shared_with.has(subject.id)
deny if resource.archived
}
policy "billing:*" {
allow if subject.role in ["admin", "billing"]
}Verify a session in five lines.
SDKs for the languages you ship in. Same primitives, same shape, same docs. No ten-call dance to get a user id.
import { authaz } from "@authaz/server";
export async function GET(req: Request) {
const session = await authaz.sessions
.verify(req.headers.get("authorization"));
if (!session) return new Response("", { status: 401 });
return Response.json({
user: session.subject,
org: session.org,
roles: session.roles,
});
}{
"user": {
"id": "usr_01HZX7...",
"email": "val@acme.com",
"verified": true
},
"org": {
"id": "org_acme",
"slug": "acme",
"plan": "enterprise"
},
"roles": ["admin", "billing"]
}Every action logged. Nothing to build.
Sessions, challenges, policy decisions, admin actions — immutable, filterable, exportable. Your SIEM, your S3, your choice.
Make it yours
Custom domain, custom branding, buyer-provided IdPs — every login page feels like part of your customer's product, not a vendor stopover.
Login · Your brand
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Custom Domain
CNAME to your subdomain. SSL and renewals handled for you.
Buyer IdPs
Plug in Microsoft Entra, Google Workspace, SAML or OIDC — whatever your buyer brings.
Custom Logo
Upload your brand logo for login pages, emails, and consent screens.
Brand Colors
Match your primary and accent colors across all auth UI.
Email Templates
Fully customizable verification, welcome, and reset emails.
Hosted Login
Branded universal login page with your domain and styles.
Changelog
View all →"I had SSO, passkeys, and MFA live by Sunday afternoon. I was building a product, not an auth system."
"Authaz is the first auth vendor whose docs matched what the SDK actually does. That alone saved us a sprint."
"A Fortune 500 prospect asked for SAML SSO and a SOC 2-ready audit trail on the same call. We said yes to both. Shipped in three days."
From your first user to your ten-thousandth tenant. No rewrites along the way.