Standards-first Client Authentication And Authorization.
A fully certified OAuth 2.0 and OpenID Connect foundation — from basic login flows to advanced token exchange and rich authorization patterns for complex enterprise architectures.
Custom AuthZ Code Is Where Vulnerabilities Live
Developers building authorization from scratch repeatedly introduce the same vulnerabilities: token interception, CSRF, improper redirect validation, missing PKCE. Even teams that get the basics right rarely implement advanced patterns correctly. Token exchange, rich authorization, and sender-constrained tokens require deep RFC expertise that most teams don't have and shouldn't need.
Build On A Certified, Complete Foundation
SecureAuth provides a fully certified OAuth 2.0 and OpenID Connect implementation — from standard authorization code with PKCE to advanced token exchange (RFC 8693), rich authorization requests (RFC 9396), and DPoP sender-constrained tokens. Your developers build on a secure, standards-compliant foundation instead of reimplementing RFC specifications from scratch.
Where standards matter
Real Architectures SecureAuth Is Built For
OAuth 2.0 and OIDC aren't just login protocols — they're the authorization backbone for microservices, mobile apps, open banking, and AI agent architectures. These are the scenarios where a certified, complete implementation matters.
Propagate user context across service boundaries
In a microservice architecture, each service needs to know who the user is and what they’re authorized to do. Passing user credentials between services is insecure. Over-permissioned service accounts create blast radius. Custom token logic is fragile and inconsistent across teams.
SecureAuth approach
Token exchange (RFC 8693) propagates user context across service boundaries. Each service receives a narrowly scoped token representing both the user and the specific permissions for that service. No over-permissioned service accounts, no credential passing.
FAPI 2.0 compliance for regulated financial APIs
Open banking mandates in the UK, EU, Australia, and Brazil require FAPI-conformant authorization. Standard OAuth flows don’t meet the security bar: token interception, authorization code injection, and replay attacks are all threats that regulators test for.
SecureAuth approach
PAR + RAR + DPoP satisfies FAPI 2.0 requirements out of the box. Pushed Authorization Requests ensure request integrity. Rich Authorization Requests enable fine-grained consent. DPoP binds tokens to the requesting client. Compliant with UK, EU, and Australian open banking mandates.
Scoped, auditable tokens for autonomous agents
AI agents are being deployed with over-broad service account credentials. They call APIs, access databases, and execute actions with no way to scope their access to what the delegating user intended. If an agent misbehaves, there’s no audit trail and no way to revoke access granularly.
SecureAuth approach
Client Credentials + Token Exchange gives AI agents scoped, auditable tokens that represent the user they act on behalf of. The agent inherits the user’s authorization context but cannot exceed it. Every API call is logged with both agent and user identity.
PKCE authorization code flow with refresh rotation
Mobile apps cannot securely store client secrets. Implicit flow is deprecated. Without PKCE, authorization code interception is trivial on mobile. Without refresh token rotation, a stolen refresh token gives indefinite access.
SecureAuth approach
Native iOS and Android apps use PKCE authorization code flow by default. Short-lived access tokens combined with automatic refresh token rotation provide industry best practice security without requiring developers to build custom token logic.
OAuth 2.0 grant types
Every Grant Type. Every Security Extension. One Platform.
OAuth 2.0 and OIDC aren't a single protocol — they're a family of specifications that need to work together correctly. SecureAuth implements the full stack: from basic authorization code to advanced sender-constrained tokens and rich authorization requests.
Authorization Code + PKCE for every client type
Web apps, native mobile apps, and single-page applications all use the authorization code flow with PKCE. No implicit flow, no client secrets on mobile. Industry best practice enforced by default.
Token Exchange for service-to-service delegation
RFC 8693 token exchange enables services to request narrowly scoped tokens on behalf of users. Each downstream service gets exactly the permissions it needs, nothing more. Audit trail tracks the full delegation chain.
Pushed Authorization Requests (PAR) for request integrity
Authorization parameters are sent directly to the server before the browser redirect. This prevents parameter tampering, ensures request integrity, and is a core requirement for FAPI 2.0 compliance.
DPoP sender-constrained tokens
Demonstration of Proof-of-Possession binds each token to the client’s cryptographic key. A stolen token is unusable without the corresponding private key, eliminating the entire class of token theft attacks.
Dynamic client registration and JWKS lifecycle
Programmatic client onboarding via dynamic registration. Automated signing key rotation via JWKS endpoints. Zero-downtime key rollover with overlap periods for seamless transitions.
Industry solutions
Built For How Your Industry Works
Standards-compliant OAuth 2.0 and OIDC for the authorization patterns that matter in your sector.
Financial Services
FAPI 2.0 conformance for open banking APIs. PAR, RAR, DPoP, and mTLS satisfy UK OBIE, EU PSD2, and Australian CDR requirements. Token exchange enables secure delegation across trading and risk platforms.
SaaS & API Platforms
Dynamic client registration for developer self-service onboarding. Custom scopes and claims for multi-tenant authorization. OIDC discovery and JWKS for zero-touch integration with enterprise customers.
AI & Automation
Client credentials and token exchange for AI agents and autonomous workflows. Scoped tokens bound to delegating user identity. Every agent API call auditable with full identity context.
Healthcare
SMART on FHIR uses OIDC and FAPI security profiles for patient-authorized third-party app access. Scoped tokens ensure apps access only the patient data the user consented to share.
Mobile & Consumer
PKCE authorization code flow for native iOS and Android apps. Refresh token rotation for secure session extension. Biometric step-up triggered by risk signals, all standards-based.
“Token exchange for our microservice mesh used to be a 6-week custom build. SecureAuth had RFC 8693 working in a day. And it was actually secure.”
Platform Engineering Lead — European FinTech
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