Diagram Authentication & Authorization Flows with AI

Auth flows are notoriously hard to explain without a visual. Describe your OAuth, JWT, SSO, or RBAC setup in plain English and get a clear architecture diagram showing every step of the authentication and authorization process.

The challenge

Authentication and authorization systems involve intricate flows between clients, identity providers, token services, and backend APIs. A user logging in with Google OAuth involves redirects, authorization codes, token exchanges, and session management - easily 8-10 steps that are nearly impossible to communicate without a diagram. Security audits, compliance reviews, and team onboarding all demand clear auth flow documentation.

The solution

Describe your auth flow naturally:

"A user clicks 'Sign in with Google' on the React frontend. The frontend redirects to Google's OAuth 2.0 authorization endpoint. After the user grants consent, Google redirects back with an authorization code. The frontend sends this code to our Express.js backend. The backend exchanges the code for access and refresh tokens with Google, creates or updates the user in PostgreSQL, generates a JWT session token, stores the refresh token in Redis, and returns the JWT to the frontend. Subsequent API requests include the JWT in the Authorization header. The backend validates the JWT, checks RBAC permissions against a policies table, and returns the response."

Every redirect, token exchange, and permission check is mapped visually. Need to add MFA? Just say "add a TOTP verification step after password validation."

Auth patterns we support

  • OAuth 2.0 / OpenID Connect

    Authorization code flow, PKCE, client credentials, and token refresh patterns with identity providers like Google, Okta, or Auth0.

  • JWT-based authentication

    Token generation, validation, refresh rotation, and revocation with access and refresh token lifecycles.

  • Single Sign-On (SSO)

    SAML or OIDC-based enterprise SSO with identity providers, service providers, and session federation across applications.

  • Role-based access control (RBAC)

    Permission models with users, roles, policies, and resource-level authorization checks at the API gateway or service level.

Perfect for

  • Security audit documentation
  • SOC 2 and compliance reviews
  • Onboarding engineers to auth infrastructure
  • Design reviews for new auth features (MFA, SSO, API keys)
  • Third-party integration guides
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