Developers

Implement authorization once

Replace complicated authorization logic with a single API call and allow product owners and security teams to manage access without touching code.

Talk to an engineer

Try Cerbos Hub free

Engineering

Product

Operations

Implement once, enforce everywhere

Replace scattered if/else permission blocks with a single Cerbos SDK call. Define access in policy, enforce it across every app, API, and AI agent - without reimplementing logic per service.

Plugs into your existing stack

Native SDKs for Go, Node, Python, Java, .NET, Rust, PHP, and Ruby and more. Integrates with your identity provider, API gateway, and CI/CD pipeline. No new infrastructure to learn.

Offload policy management

Let product owners and security teams manage roles, permissions, and tenant rules through Cerbos. You implement authorization once - they handle ongoing changes without touching code.

“What caught our attention was the deployment modes of Cerbos, which were very adherent to our new infrastructure running Kubernetes. We could choose to run as a server or as a sidecar. And it was focused on performance and easier to integrate than other solutions out there because Cerbos uses JSON or YAML; you choose.”

Paulo Henrique Pereira Cardoso, Tech Manager

Implement once, enforce everywhere

Replace scattered if/else permission blocks with a single Cerbos SDK call. Define access in policy, enforce it across every app, API, and AI agent - without reimplementing logic per service.

Plugs into your existing stack

Native SDKs for Go, Node, Python, Java, .NET, Rust, PHP, and Ruby and more. Integrates with your identity provider, API gateway, and CI/CD pipeline. No new infrastructure to learn.

Offload policy management

Let product owners and security teams manage roles, permissions, and tenant rules through Cerbos. You implement authorization once - they handle ongoing changes without touching code.

Paulo Henrique Pereira Cardoso, Tech Manager

Update access logic without engineering sprints

Product owners update roles, permissions, and tenant-specific rules through Cerbos - no code deploys, no waiting on engineering.

Support any access model your customers need

RBAC, ABAC, PBAC, multi-tenancy, custom roles - meet enterprise buyer requirements without building from scratch.

Unblock your roadmap from IAM bottlenecks

Stop losing sprints to authorization rework. Cerbos externalizes access control from product code so your team stays focused on what matters.

“Having the separation of the permissions from the code base just makes the code base more elegant. It means they're not tied to specific endpoints. And ultimately it means that different business owners have the ability to actually make updates.”

Henry Arnold, CTO & Co-Founder, Nook

Ship policy changes through your CI/CD

Deploy authorization updates through your existing Git and CI/CD workflow. No manual steps, no separate deployment pipeline.

Full visibility into every access decision

Log requests, actions, resources, and authorization decisions across all services - human and machine.

Stay audit-ready without the fire drill

Centralized, structured logs simplify compliance cycles for SOC 2, ISO 27001, HIPAA, PCI DSS, and GDPR.

“One of our favorite features is the audit logs because they allow us to understand what's happening inside the black box. This level of visibility gives us confidence in our security posture.”

Rob Crowe, Principal Engineer

How in-house authorization becomes your bottleneck

Whether you built it from scratch or it's buried in your application code, the result is the same: scattered logic, constant rewrites, and compliance work that never ends - all for a problem that's already been solved.

You're reimplementing the same logic everywhere

Authorization checks scattered across microservices, APIs, and frontend layers. Every new surface means duplicating logic, diverging behavior, and debugging inconsistencies across services.

Every change means touching code

New tenant? New role? New feature flag? Each one requires code changes, engineering review, and a full redeployment - for what should be a configuration update.

You're responsible for auditing and compliance

Hardcoded authorization means you also own the audit trail. Building logging, evidence collection, and compliance reporting from scratch - on top of the authorization logic itself.

Your authorization headache solved

Cerbos externalizes and centralizes authorization

if (
  user.email.includes("@mycompany.com") ||
  (
    user.company.package === "premium" &&
    user.groups.includes("managers")
  )
) {
  if (user.region === resource.region) {
    // access allowed
    AuditLog.record("ALLOWED", "edit", user, resource);
  } else {
    // access denied
    AuditLog.record("DENIED", "edit", user, resource);
  }
} else {
  // access denied
  AuditLog.record("DENIED", "edit", user, resource);
}

Before

After

if
(
await cerbos.isAllowed({ principal: user, resource, action: "edit" })
) {
  // allowed
}

Before

After

JavaScript

Python

Java

.NET

PHP

Rust

Ruby

Define your policies

Replace the spaghetti if/else case/switch code with a single function call.

Programmatic policy management

Create, update and manage policies using the Cerbos CLI or via API from your applications.

Flexible policy delivery

Deliver policies from from your existing Git provider, any CI/CD pipeline or directly from the Cerbos Hub interface.

Validate policy changes automatically

Run automated tests in Cerbos Hub's CI pipeline before deploying to your Policy Decision Points.

How Complex centralized scattered roles and permissions with Cerbos.

Consistency across services

Permissions managed from one place

Faster app iterations

“It used to be that somebody on the product team goes to change something, and we forgot to change it in 9 of 10 places. So it was always a disaster. With Cerbos, we have one repo of policies. That's all you have to worry about.”

Read customer story

Steve High

Staff Engineer, Complex

Cerbos authorization in action

End-to-end authorization across applications, infrastructure, and AI systems with a unified policy engine, data layer, and control plane.

Documentation

See how Cerbos works

Authorization management

Cerbos Hub

Policy Administration Point

Cerbos Hub is the control plane for policy authoring, testing, versioning, distribution, and audit visibility. Hub provides end-to-end policy management out of the box.

Data and Integration

Cerbos Synapse

Enrichment and Orchestration

Synapse fetches identity, resource, and relationship data from external systems to enrich authorization requests, and translates infrastructure protocols into Cerbos policy checks.

4.3k

< 1 ms decision time

Cerbos PDP

Policy Decision Point

PDP is an open source authorization engine that evaluates requests against policies and returns access decisions. It's stateless, high-performance, and built to scale horizontally.

Native SDKs

Cerbos PEP SDKs

Policy Enforcement Point

Cerbos PEPs are language-native client libraries that connect applications directly to PDPs to enforce real-time access decisions, with SDKs available for all major languages.

Implement authorization once, scale everywhere

Define access in policy, enforce it with one SDK call, and let product and security teams manage changes through Cerbos - without touching your code.

Replace scattered if/else permission blocks with a single Cerbos SDK call. Define access rules in declarative policy, reusable across every service, tenant, and environment. You implement authorization once - Cerbos handles the rest.

Developer-ready integrations

Works with your existing tools, workflows, and infrastructure

Try Cerbos playground

Explore all integrations

Flexible policy sources

Add policies from any Git provider, any CI/CD tool, Cerbos Hub API, cerbosctl CLI, direct UI upload.

SDKs and integration for every stack

Use SDKs for JS, Go, Python, Java, .NET, Rust, PHP, and Ruby, plus integrations for AI frameworks, vector databases, and MCP servers.

Deployment targets

Deploy to Cerbos PDPs in containers, serverless, edge, or multi-region clusters.

Compliance ready audit logs

Ensure Zero Trust, compliance and audit readiness for FedRAMP, SOC 2, SOC 3, ISO 27001, HIPAA, PCI DSS, and GDPR.

Access control for every use case

AI authorization

Agentic systems

MCP server security

RAG authorization

Enterprise authorization

Application permissions

Multi-tenant SaaS permissions

NHI authorization

ABAC

RBAC

ReBAC

PBAC

Runtime

Event-time

Admin-time

Audit-time

Cloud

Self-hosted

On-premise

Air-gapped

Contextual, continuous authorization

Why engineering teams love Cerbos

Resources: from quickstart to production

Mapping business requirements to authorization policy

Guide

Mapping business requirements to authorization policy

Ebook

How to adopt externalized authorization

Guide

Service to service authorization

Filtering data using authorization logic

Article

Filtering data using authorization logic

AI agents, the Model Context Protocol, and the future of authorization guardrails

Article

AI agents, the Model Context Protocol, and the future of authorization guardrails

Ready to solve your authorization headache?

See how Cerbos replaces scattered permissions logic with a single API call, and lets you hand off policy management for good.

“How it works” video

Documentation

Talk to an engineer

Try Cerbos Hub free

What is Cerbos?

Cerbos is an end-to-end enterprise authorization software for Zero Trust environments and AI-powered systems. It enforces fine-grained, contextual, and continuous authorization across apps, APIs, AI agents, MCP servers, services, and workloads.

Cerbos consists of an open-source Policy Decision Point, Enforcement Point integrations, and a centrally managed Policy Administration Plane (Cerbos Hub) that coordinates unified policy-based authorization across your architecture. Enforce least privilege & maintain full visibility into access decisions with Cerbos authorization.

Trusted Tester Agreement

Trademark Guidelines

Implement authorization once

Implement once, enforce everywhere

Plugs into your existing stack

Offload policy management

Implement once, enforce everywhere

Plugs into your existing stack

Offload policy management

Update access logic without engineering sprints

Support any access model your customers need

Unblock your roadmap from IAM bottlenecks

Ship policy changes through your CI/CD

Full visibility into every access decision

Stay audit-ready without the fire drill

How in-house authorization becomes your bottleneck

Cerbos externalizes and centralizes authorization

Define, test, and iterate policies

Deploy and manage

Authorize every identity

Log and audit every decision

How Complex centralized scattered roles and permissions with Cerbos.

Cerbos authorization in action

Implement authorization once, scale everywhere

One API call replaces your entire authorization layer

Offload policy management to product and security teams

No need to build auditing or compliance magic

Never reimplement authorization across services

Fits your infrastructure - deploy anywhere

Works with your existing tools, workflows, and infrastructure

Flexible policy sources

SDKs and integration for every stack

Deployment targets

Compliance ready audit logs

Access control for every use case

Why engineering teams love Cerbos

Why teams love Cerbos

Resources: from quickstart to production

Mapping business requirements to authorization policy

How to adopt externalized authorization

Service to service authorization

Filtering data using authorization logic

AI agents, the Model Context Protocol, and the future of authorization guardrails

Ready to solve your authorization headache?

Authorization for enterprise software

Authorization for AI systems

By industry

By business requirement

Getting started

How it works

Resources

Useful links