Zero Trust security at scale

Authorization for enterprise software and AI

Enforce fine grained, contextual, and continuous authorization in every layer of the software you build. Secure gateways, applications, and AI systems with powerful access control.

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Try Cerbos

Authorize every identity

Define, test, iterate

Deploy and manage

Audit decisions

Authorization loved by engineers and leadership

For managers

For engineers

"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

Time to market

100x faster launch

Deploy new roles and permissions instantly for RBAC, ABAC, PBAC.

Security

Reduce AI risk

Prevent AI over-permissioning and shadow access with Cerbos authorization.

ROI

90% cost reduction

Eliminate the need for custom-built authorization infrastructure.

Compliance

Audit-ready logs

Detect hidden permissions and compliance gaps across GDPR, SOC 2, HIPAA, ISO 27001.

Access control for every use case

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Authorization for AI systems

Agentic systems

MCP server security

RAG authorization

Authorization for enterprise software

Application permissions

Multi-tenant SaaS permissions

NHI authorization

Authorization software that scales with your business

Runtime

Event-time

Admin-time

Audit-time

ABAC

RBAC

PBAC

Cloud

Self-hosted

New

On-premise

New

Air-gapped

New

Built for security and peace of mind

Control access for every identity, at any scale

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.

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 SDK

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.

Developer-ready integrations

Works with your existing tools, workflows, and infra

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.

New

Cerbos Synapse

Give every authorization decision the context it needs

Enrich authorization requests with identity, resource, and relationship data from your existing systems. No middleware to build, no custom adapters to maintain, no application code changes.

Explore Cerbos Synapse

Recognized by the community

Award-winning technology, built for security and scale

With a strong open source foundation, active AuthZen membership, and multiple industry awards, Cerbos has been recognized as a secure and reliable authorization software since 2021.

Hackernoon Startup Awards 2025

Startups 100 Index 2025

API World 2025 Awards

Intellyx Digital <span class='whitespace-nowrap'>Innovator 2023</span>

Intellyx Digital Innovator 2023

Integrations with the industry leading technologies

Implementing Zero Trust with Cerbos

Why engineering teams love us

Fine-grained access control in days not months

Externalized, policy-based, runtime authorization for your apps, enterprise software, AI systems and workflows.

Talk to an engineer

See Cerbos pricing

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

Authorization for enterprise software and AI

Authorization loved by engineers and leadership

Access control for every use case