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Authorization Resource Center

Master authorization fundamentals with our guides, events, and more.
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ABAC, RBAC, ReBAC
AI Authorization
Authorization Tools
Microservices
Open Policy Agent
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Authorization Tools

OPA vs Cedar vs Zanzibar: 2025 Policy Engine Guide

Compare OPA, AWS Cedar, Google Zanzibar, and Authorization as a Service to find the best policy engine for secure, scalable access control.

October 28, 2025
Hazal Mestci
Authorization Tools

Mastering ABAC: Smarter Access Control for Developers

Discover ABAC: the flexible, attribute-driven access control model that outperforms RBAC for complex apps, enabling dynamic, fine-grained security for developer

October 28, 2025
Hazal Mestci
AI Authorization

Setting Permissions for AI Agents

Learn how to securely set AI agent permissions with delegated access, just-in-time credentials, human-in-the-loop checks, and behavioral guardrails.

October 28, 2025
Hazal Mestci
AI Authorization

Authorization for MCP: OAuth 2.1, PRMs, and Best Practices

Learn how AI agents using Model Context Protocol (MCP) authorize securely with OAuth 2.1, PKCE, DCR, and frameworks like Oso, RBAC, and ABAC.

October 28, 2025
Hazal Mestci
Authorization Tools

Top Okta Alternatives

Explore the best Okta alternatives for identity and access management, from open-source tools to developer-first authorization platforms.

October 21, 2025
Hazal Mestci
Authorization Tools

ABAC with Open Policy Agent (OPA)

Learn how to implement Attribute-Based Access Control (ABAC) using Open Policy Agent (OPA) for scalable, fine-grained authorization in modern systems.

October 21, 2025
Hazal Mestci
AI Authorization

Best Practices of Authorizing AI Agents

AI agents move fast, and without proper authorization, they can do real damage. Learn how to secure AI agents with MCP, OAuth 2.1, and Oso’s policy-as-code.

October 21, 2025
Hazal Mestci
AI Authorization

AI Agents and Context-Aware Permissions

AI agents act faster than humans, which means misconfigured permissions can spiral instantly. Learn how context-aware access models prevent cascading failures.

October 15, 2025
Hazal Mestci
ABAC, RBAC, ReBAC

Top 5 Real-World RBAC Examples Explained: How Role-Based Access Control Works

Discover how Role-Based Access Control works with real-world RBAC examples. Learn key use cases, benefits, and implementation best practices for 2025.

October 15, 2025
Hazal Mestci
ABAC, RBAC, ReBAC

RBAC vs ABAC vs PBAC: Understanding Access Control Models in 2025

Compare RBAC, ABAC, and PBAC in 2025. Learn key differences, use cases, and best practices to choose the right access control model for distributed and cloud na

October 15, 2025
Hazal Mestci
Microservices

9 Microservices Security Best Practices 2025

How to secure a microservices architecture in 2025

March 21, 2025
Hazal Mestci
ABAC, RBAC, ReBAC

ABAC Patterns: What is Attribute Based Access Control

An overview of Attribute-Based Access Control (ABAC), examples and comparisons between ABAC and RBAC

January 12, 2024
Hazal Mestci
AI Authorization

Agents Rule of Two: A Practical Approach to AI Agent Security

The Rule of Two is a security framework from Meta that states AI agents must satisfy at most two of three properties: processing untrusted inputs, accessing sen

November 19, 2025
Meghan Gill
ABAC, RBAC, ReBAC

How to Build a Role-Based Access Control Layer

Learn how to build a secure Role-Based Access Control (RBAC) layer with roles, permissions, and enforcement strategies for modern applications

October 2, 2025
Hazal Mestci
Authorization Tools

What is Google Zanzibar?

Zanzibar is Google's authorization system built as a centralized authorization database built to take authorization queries and return decisions quickly

April 29, 2022
Hazal Mestci
Microservices

5 Essential Microservices Design Patterns

Discover the top microservices design patterns to architect scalable, efficient, and reliable systems that really matter in 2025.

May 28, 2025
Mathew Pregasen
Microservices

10 Best Tools for Microservices Management

Find the right tool for managing microservices - based on your set-up, team size, and real-world use case. Whether you're running a few services or hundreds.

May 23, 2025
Mathew Pregasen
Microservices

API Gateway Patterns for Microservices

This guide breaks down the API gateway pattern with real-world examples, client-specific needs + practical design options. Built for real architectures.

May 23, 2025
Mathew Pregasen
Microservices

Microservices Deployment Architecture and Patterns you need to know

Learn all you need to know about microservices deployment to roll out software faster and secure at the same time.

May 2, 2025
Mathew Pregasen
Microservices

13 Microservices Best Practices

13 best practices for designing and managing a microservice-based application

May 15, 2024
Mathew Pregasen
ABAC, RBAC, ReBAC

RBAC vs ABAC: main differences and which one you should use

RBAC & ABAC are common authorization patterns. With RBAC you group permissions into roles. ABAC allows fine-grained control by authorizing based on attributes.

April 8, 2025
Hazal Mestci
ABAC, RBAC, ReBAC

5 Real-World ABAC Examples to Secure Your App Smarter

Explore five practical ABAC examples, from document-level access to time-bound permissions. Learn how attribute-based access control works and how to implement

September 4, 2025
Aydrian Howard
Authorization Tools

Simplifying Authorization at Scale: The Importance of DevOps Workflows With Flexible, Scalable, and Secure Access Control

Modern DevOps teams need more than RBAC. Learn how Policy-as-Code and Authorization-as-a-Service enable scalable, automated, and secure access control.

August 6, 2025
Mathew Pregasen
Authorization Tools

Best Keycloak Alternatives & Competitors 2025

Looking for a Keycloak alternative in 2025? Compare the best IAM solutions including Oso, Auth0, Ory, FusionAuth, Clerk, and more. Discover the right fit for yo

August 5, 2025
Mathew Pregasen
Authorization Tools

Access Control Management: Systems, Security Risks, Best Practices

Learn what access management is, how access control systems work, and why security access management is critical. Explore risks, best practices, and real-world

August 5, 2025
Mathew Pregasen
Open Policy Agent

Securing Terraform with OPA

Enforce security and compliance in your Terraform workflows using Open Policy Agent (OPA) and policy as code to catch misconfigurations before deployment.

July 30, 2025
Mathew Pregasen
Open Policy Agent

Securing Kubernetes with OPA

Learn how to secure Kubernetes with Open Policy Agent and OPA Gatekeeper by enforcing policy-as-code for compliance, governance, and misconfiguration prevention

July 29, 2025
Mathew Pregasen
Open Policy Agent

5 Open Policy Agent Examples and Use Cases

Learn how Open Policy Agent helps protect your data, prevent unauthorized access, and strengthen application security through real use cases and examples

July 29, 2025
Mathew Pregasen
Open Policy Agent

5 Open Policy Agent Alternatives for Superior Authorization

Explore 5 Open Policy Agent alternatives—Oso, Cedar, Zanzibar, XACML, and Sentinel—to find the best-fit authorization solution for your app's needs.

May 28, 2025
Hazal Mestci
Open Policy Agent

What is OPA (Open Policy Agent)?

Learn more about OPA policies, Rego language, and OPA examples. Discover practical insights with OPA policy examples, testing, and alternatives like Oso.

January 2, 2024
Hazal Mestci
Authorization Tools

OpenFGA Alternatives

Alternatives to OpenFGA

October 14, 2024
Hazal Mestci
Authorization Tools

AuthN vs AuthZ: The Differences You Need to Know [2025]

Understand the crucial differences between AuthN (authentication) and AuthZ (authorization), and learn why authorization is essential with expert insights.

August 5, 2025
Aydrian Howard
Authorization Tools

Top Alternatives to AWS Cedar

Compare top alternatives to AWS Cedar for fine-grained authorization. Explore Oso, Permit.io, Casbin, OpenFGA, and SpiceDB.

July 30, 2025
Mathew Pregasen
Authorization Tools

Top Alternatives to SpiceDB

Explore 5 top alternatives to SpiceDB for authorization. Compare Oso, Cedar, OpenFGA, Permit.io, and Cerbos to find the right fit for your access control needs.

July 30, 2025
Mathew Pregasen
Authorization Tools

Best Cerbos Alternatives

Explore top Cerbos alternatives like Oso, Auth0, Permit.io, and Keycloak to find the best authorization tool for your tech stack and access control needs.

July 30, 2025
Mathew Pregasen
ABAC, RBAC, ReBAC

10 RBAC Best Practices You Should Know in 2025

Learn how to implement Role-Based Access Control (RBAC) with real-world tips, design patterns, pros & cons, and tools like Oso for secure, scalable access mana

July 28, 2025
Mathew Pregasen
ABAC, RBAC, ReBAC

RBAC Implementation in 5 Steps with Examples

Step-by-step RBAC implementation guide covering roles, permissions, scope, and real-world examples. Learn how to build secure, scalable access control systems.

July 24, 2025
Mathew Pregasen
Authorization Tools

Best Permit.io Alternatives & Competitors 2025

Explore top Permit.io alternatives like Oso, Auth0, OPA, and Cerbos—compare pricing, features, and find the right fit for your authorization needs.

June 20, 2025
Mathew Pregasen
Authorization Tools

Best Auth0 Alternatives & Competitors 2025

Explore top Auth0 alternatives like Oso, Okta, Keycloak, and Supabase Auth—compare features, pricing, and why specialized authorization tools matter.

June 20, 2025
Mathew Pregasen
Authorization Tools

Top 21 Authorization Systems and Tools for 2025

Learn more about top authorization tools and solutions to protect your data, prevent unauthorized access and ensure your application security.

June 20, 2025
Mathew Pregasen
ABAC, RBAC, ReBAC

RBAC vs ABAC vs ReBAC: What is the best access policy paradigm?

Compare RBAC, ABAC, and ReBAC to choose the right access control model for your system’s needs. Learn how each policy type shapes authorization decisions.

June 10, 2025
Meghan Gill
Authorization Tools

Aserto vs Oso Technical Comparison

Dive deep into Aserto’s architecture and limitations—from sync latency to policy modeling—and see what to look for in a scalable, low-latency alternative.

May 23, 2025
Hazal Mestci
Authorization Tools

Migrating from Aserto? Evaluating the Alternatives

Aserto is shutting down—what’s next? Learn how to choose a reliable, scalable, and developer-friendly authorization provider. Compare options, avoid pitfalls.

May 23, 2025
Hazal Mestci
ABAC, RBAC, ReBAC

Beyond RBAC: Modern Permission Management for Complex Apps

Beyond RBAC: Modern Permission Management for Complex Apps

May 6, 2025
Hazal Mestci
Authorization Tools

Fine Grained Authorization: Why It Matters and How to Get It Right

An overview of Fine-Grained Authorization, including how it differs from traditional authorization models.

October 2, 2024
Hazal Mestci
ABAC, RBAC, ReBAC

How to implement Role Based Access Control (RBAC) in Node.js

Learn how to implement Role-Based Access Control RBAC in Node.js with Oso. Secure your app with role-based permissions, policies, and data filtering.

February 10, 2022
Hazal Mestci
ABAC, RBAC, ReBAC

Golang RBAC: Implementing Role-Based Access Control in Go

Learn how to implement Role-Based Access Control RBAC in Golang with Oso. Secure your app with role-based permissions, policies, and data filtering.

February 10, 2022
Hazal Mestci
ABAC, RBAC, ReBAC

How to implement Role Based Access Control (RBAC) in Python

Learn to implement Role-Based Access Control (RBAC) in Python with examples. Build secure, scalable apps using Python's RBAC libraries and best practices.

January 17, 2022
Hazal Mestci

Stay Ahead of the Next Security Shift

AI agents are transforming access control. Learn how Oso helps teams enforce least privilege in real time.
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