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External Authorization Systems

A comprehensive guide to external authorization platforms for distributed systems. Covers platform selection, policy language comparison, cloud-native authorization with AWS, and relationship-based access control with SpiceDB and Auth0 FGA.

Posts →

Series overview

  1. 1. Choosing the Right Platform for Your Architecture
  2. 2. AWS Cognito + Verified Permissions for SaaS
  3. 3. SpiceDB vs Auth0 FGA: Relationship-Based Authorization
  4. 4. Cedar vs Rego vs OpenFGA: Policy Language Comparison

Published posts

External Authorization Management Systems: Choosing the Right Platform for Your Architecture

A vendor-neutral evaluation of AWS Verified Permissions, SpiceDB, OpenFGA, Cerbos, and OPA, with architecture patterns, cost analysis, and a decision framework.

authorizationsecurityarchitecture +5
AWS Cognito + Verified Permissions for SaaS Authorization

Build SaaS authorization with AWS Cognito and Verified Permissions, covering Cedar policies, multi-tenant patterns, JWT flow, and cost in TypeScript.

authorizationawscognito +4
SpiceDB vs Auth0 FGA: Relationship-Based Authorization Compared

A deep technical comparison of SpiceDB and Auth0 FGA (OpenFGA), two Zanzibar-inspired systems with different trade-offs in schema, consistency, deployment, and scale.

authorizationsecurityarchitecture +3
Cedar vs Rego vs OpenFGA: Policy Language Comparison

A deep comparison of Cedar, Rego, OpenFGA DSL, and Cerbos YAML/CEL policy languages: syntax, performance, formal verification, tooling, and TypeScript integration.

authorizationsecurityarchitecture +3