Identity | Verification | Secure operations

One central identity.
Secure flows without guesswork.

OAuth/OIDC, Hosted, Bridge, QR, Mail2FA and Verification Layer in one platform for login, approval and secure operations.

Create organization View documentation

No credit card required to get started

console.exemplo.local

My organization

OAuth application management

JD
ML
AS
Application Status
Web app
app.exemplo.com.br
 Active
Internal ERP
erp.empresa.local
 Active

INTEGRATED WITH THE BEST TECHNOLOGIES

LactechLactech
SafeNodeSafeNode
Deskly
GoogleGoogle
OktaOkta
QuintoAndar
Stone
LactechLactech
SafeNodeSafeNode
Deskly
GoogleGoogle
OktaOkta
QuintoAndar
Stone
LactechLactech
SafeNodeSafeNode
Deskly
GoogleGoogle
OktaOkta
QuintoAndar
Stone

Implementation

Set up in minutes

Create your organization, choose the login mode, run Sandbox, and enable extra protections when your product needs them.

Create organization
Step 1

Create your organization

Create your account, define the environment, and register redirect URIs.

Configure OAuth app
Hosted
Bridge
Step 2

Register your application

Create client_id, configure scopes and redirects, then choose Hosted, Bridge, QR Solo or classic OAuth.

Integrate in code
// GET /authorize with PKCE + state
const url = `/authorize`
// POST /token to exchange code for token
const token = await getToken()
Step 3

Connect your backend

Validate the flow with tracing, Integration Check and Sandbox before going to production.

Demo

See the Auth21 Kernel flow on mobile

Features

Identity, verification and readiness in one layer

Built to close integration faster, protect sensitive actions, operate sessions and diagnose failures without guesswork.

Hosted mode
Managed login
Accounts on instance

Hosted mode

Auth21 Kernel handles login UI and flow so teams can go live faster.

Bridge mode
Your backend authenticates
Signed callback

Bridge mode

Your system validates users while Auth21 Kernel completes OAuth2 token issuance.

Mobile
qr_status=approved
handoff=mobile
callback=oauth_code

QR Solo

QR approval with secure handoff for mobile login without mixed responsibilities.

Admin
callbackpass
tokenpass

Controlled validation

Test OAuth, QR, Bridge, callbacks, errors and tokens without touching production.

Security Hub

Verification Layer and Mail2FA

Reuse challenge, OTP, approval link and cross-device verification for login, password reset, admin actions and any sensitive flow.

Standards

flow_id | trace_id | error_code

Trust Center and Session Center

Consolidate operational readiness and operate global sessions without relying on manual log reading or blind logout.

Auth21 Kernel v2

Less manual support. More diagnostics in the product.

v2 adds practical layers to test, protect, verify and operate integrations without trial and error.

flow_id trace_id error_code step_up
01

Integration Sandbox

Test flows and contracts before going to production.

02

Password Protection + 2FA

Require extra verification for passwords, recovery and sensitive actions.

03

Access Guard

Decide allow, step_up or deny for withdrawals, investments, admin and personal data.

04

Operational tracing

Use flow_id, trace_id and error_code to find failure causes quickly.

Integrations

Modernize without replacing your infrastructure

Auth21 acts as the modern identity layer on top of systems your company already uses. Okta and Google do not tell the same story, so they should not look the same.

Auth21

Modern identity orchestration for existing authentication ecosystems.

Modernize authentication without migrating users.

Open integrations hub

Enterprise orchestration

Okta

Okta

Federation, Bridge and integration on top of existing enterprise environments without forcing user migration.

Coming soon

View Okta roadmap

Fast adoption

Google

Google

Google Login and Workspace currently appear as a validation track. Configuration and docs exist, but operational status should be confirmed per environment.

Under validation

View Google integration

Preços

Simples, transparente
e acessível para devs BR

2–5× mais barato que Auth0 e Clerk. Sem surpresas no final do mês.

Hobby

Grátis

Ideal para desenvolvedores ou pequenos times testando integrações.

Começar grátis
1 ambiente (tenant)
2 apps OAuth
200 usuários hosted
Audit log 7 dias
Hosted login (telas Auth21)
Sandbox de integração
Mais Recomendado

Pro

R$49 /mês

Criado para produtos em produção que precisam de velocidade e segurança.

Começar trial de 7 dias
5 ambientes (tenants)
15 apps OAuth
5.000 usuários hosted
Bridge & Client Embed
QR Solo + handoff mobile
2FA por email & Access Guard
Email Studio (templates)
White label (nome, cor, logo)

Business

R$349 /mês

O poder, a customização e o suporte que sua organização necessita.

Falar com a gente
Ambientes ilimitados
Apps OAuth ilimitadas
Usuários hosted ilimitados
Modo Enterprise (SSO)
TOTP (autenticador app)
Integration Assistant (AI)
Suporte prioritário 24h
SLA contratual

Como nos comparamos

Auth0

Pro equiv.

R$1.200/mês

Clerk

Pro equiv.

R$125/mês

Auth21

Pro

R$49/mês

Questions

Frequently asked questions

Direct answers to integrate with less friction.

Need more technical detail? View documentation

Want to validate the integration?

Create your organization and start guided onboarding.

Create organization