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Cerbos: Open-Source Authorization Layer & Access Control SystemOur scalable, open-source authorization layer gives your product secure, decoupled, extensible access controls. Get started with Cerbos today.Cerbos: Open-Source Authorization Layer & Access Control System2243Talk to an engineerTry CerbosSecuring AI agents and non-human identities in enterprises.Download eBookFine-grained access control in days not monthsExternalized, policy-based, runtime authorization for your applications.Get started with Cerbos PDPOpen source Policy Decision PointExplore Cerbos HubEnterprise authorization managementJoin hundreds of leading companies using CerbosCerbos Hub is Generally Available!Easily implement, manage, and audit fine-grained access controlStart a free trialMake roles and permissions an asset, not a choreFaster app developmentExternalize authorization and prioritize your app’s core functionalities.Leverage a plug-and-play, API-based approach, designed to integrate with your existing systems and accelerate development, saving you months of implementation time.Flexible to changing requirementsAdapt to evolving business needs and regulatory requirements with policy-based authorization.Centralized management which integrates into governance frameworks, enabling changes without compromising compliance.Increased security at scaleEnsure least-privilege access across all apps and services in your architecture.Implement fine-grained, zero trust runtime access controls to protect your data and systems from evolving threats at runtime.Centralized management, decentralized decisioningDefine RBAC and ABAC policies in a single source of truth.Manage, govern and audit access control from a central Policy Administration Point.Deploy distributed Policy Decision Points (PDP) locally alongside applications and services for local decisioning at runtimeExplore Cerbos HubEnterprise authorization managementExternal authorization made easy in 3 stepsTry Cerbos Hub for free#1 Replace the spaghetti if/else case/switch code with a single function call.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); }if (await cerbos.isAllowed({ principal: user, resource, action: "edit" })) { // allowed } BeforeAfter#2 Define the RBAC and ABAC rules in standardized policies, and manage policy decisions points from a central policy administration hub.#3 Call Cerbos API from anywhere in your stack - New requirements, new policies and conditions can be introduced without having to make a change to your core application.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); }if (await cerbos.isAllowed({ principal: user, resource, action: "edit" })) { // allowed } BeforeAfterBuild roles and permissions in minutesPre-built integrations and policiesGet up and running in minutes with SDKs and starter projects for common frameworks, servers, ORMs and identity providers.EcosystemPermissions aware data filteringGenerate dynamic conditions to query and filter based on the access policy for each object and principal.Query filteringData-filtering for RAGBeyond RBAC/ABACImplement context-aware role definitions and attribute-based access control for adaptable, granular security policies.RBACABACIterate with easeHuman-readableManage policies in configuration instead of code.Low-codePolicy PlaygroundExperiment with policies in a safe environment and get simulated results in real time.PlaygroundGitOps testingImplement a CI/CD workflow with GitOps. Reduce human errors and enhance security.GitOps & CI/CDStateless and scalableStateless decision points run in your environment or at the edge. Stateless authZDeploy without riskAudit trailsCapture all actions attempted and decisions made by your Cerbos policies. ISO27001, SOC2, HIPAA compliant.Audit logsCoordinated rollout and monitoringCentralized management and real-time policy deployment to keep authorization synchronized across your application.Coordinated rolloutLow-latencyDecisions are made locally at runtime in sub-milliseconds without requiring any cloud lookups.Low-latencyFlexible deployment modelsSelf-hosted, compatible with air-gapped, high security environments. Deploy with serverless functions or a sidecar model.DeploymentCerbos benefits for different rolesDevelopersReplace complicated authorization logic with a single call and allow product owners or security teams to manage access without touching code.Implement authZ onceProduct ManagersDefine and evolve complex policies without requiring further developer time.Plug and play collaborative authZSecurity teamsTrack and audit access requests, grants and denials without without requiring further developer effort.Low-code collaborative authZArchitectsDesign a truly zero trust application architecture with externalized authorization.Secure your architectureWhat our users say about CerbosRob, Principal Engineer@ Utility Warehouse"It's weird to say an outside company has our back, but Cerbos does. It's the people. It's their open-source code: it's high quality, you can read it, it does what it says on the tin"Joe, Software Engineer@ 9fin"It's a good feeling being able to say yes to almost any permissioning requirement." "Cerbos is small, contained and easy to implement. It 100% delivers on the promise of abstracting away the complexity of decision making."David, Senior Software Engineer@ Salesroom"We're not worried about scaling because we can easily increase our load on Cerbos. It will also be easy for us to change how we're distributing policies as we reach different points of scale."Joe, CEO & Co-Founder@ Nook"We went from one user - every role, to a world where there are many users - many roles. And the product, it relies on Cerbos to actually bring the value that we want to bring to customers. All of our customers are relying on Cerbos, by relying on the product, which is of course relying on Cerbos."Chuck, Head of Engineering@ Salesroom"Instead of thinking of how much time Cerbos has saved us, I think about how much time it didn't cost us. It didn't cost us any time. Cerbos just works. I don't have to think about it. It's as simple as that."Steve, Staff Engineer@ NTWRK"One of our big considerations was speed. We have strict latency tolerances. When it comes to Cerbos - you can call it a hundred times during a request and it doesn't matter. It's incredibly fast."Engin, Head of Product and Growth & Co-Founder@ Debite"If it wasn't for Cerbos, one thing is for sure - we would've launched later than we did. As a result, we would have less customers. And the maintenance part is also very important. Our technical team would be dealing with daily stuff regarding access controls, access logs. Now, we don't have to spend any time on that."Rounak, Founding Engineer@ CommandK"Cerbos policy writing is quite flexible, and deploying as a unit microservice as well. Cerbos "doesn't get in the way" once integrated, that's the best part."Romina, Tech Lead@ Wizeline"It is easy to implement and provides a solution for a problem that is often not properly addressed."Henry, CTO & Co-Founder@ Nook"Having the separation of the permissions from the code base just makes the code base more elegant. It makes the permissioning more elegant. It means they're centralized, so they're not tied to specific endpoints. And ultimately it means that different business owners have the ability to actually make updates."Rasmus, CTO@ Firtal"Just discovered your embedded testing framework. This is probably the best balance between hyperfocused functionality and embedded tooling I've ever seen in an open source project. Damn, good work!"More success storiesJoin leading companies in the Cerbos partners programMost popular resourcesCerbos Policy Decision PointWant to run authorization yourself?Try our open source productPlaygroundPrototype policies in your browser right nowTry the Cerbos PlaygroundDocsCheck out our API reference and guidesRead our docsSlack communityJoin our community on Slack and learnJoin us on SlackSuccess storiesStories of Cerbos in productionRead storiesSpeak to an engineerBook an intro call and learn moreBook a meetingSubscribe to our newsletterJoin thousands of developers | Features and updates | 1x per month | No spam, just goodies.© 2021-2025 Cerbos.devProductCerbos HubCerbos Policy Decision PointSolutions for:DevsArchitectsProduct TeamsSecurity TeamsDocs & resourcesHow It WorksCerbos PlaygroundDocumentationFeatures, Benefits & Use CasesEcosystemBlogNewsCommunity SlackSpeak to an EngineerSuccess StoriesPartnershipsWebinars and eBooksPricingCode of ConductCompanyAboutEventsFAQGlossaryJoin UsSubscribeSitemapUseful linksNode.js AuthorizationPrisma AuthorizationAuth0 AuthorizationSQLAlchemy AuthorizationAuthorization in Nest.JSSveltekit AuthorizationNext.js AuthorizationService to Service AuthorizationInfrastructure vs Application AuthorizationAuthorization as a ServiceLegalAll DocumentsTerms of ServicePrivacy PolicyTrusted Tester AgreementTrademark Guidelinesengben-GBhttps://cerbos.dev

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