
Permit.io
Guild
Warrant
Actera checks every AI agent action against your policies before it runs, then allows it, routes it for human approval or blocks it. Live business context, MCP support and a full audit trail.

Aserto
authzed
Warrant
Permit.io
Oso
Ory
Topaz.sh
Cerbos helps teams separate their authorization process from their core application code, making their authorization system more scalable, more secure and easier to change as the application evolves.

Which is more popular?
Based on our record, Cerbos seems to be more popular. It has been mentioned 6 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | actera.dev | cerbos.dev |
| Pricing | ||
| Platforms | — | |
| Company | 1 - 9 employees | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Actera is a guardrail layer for AI agents. Agents send each action to Actera before it runs, such as a refund, a payment, a data export or a production deploy. Actera checks it against your policies and live context (approvals already given, workflow state, spend so far, what other agents have...
Cerbos is a self-hosted, open source authorization layer that separates your authZ logic from your core application code. Cerbos allows for swift and secure set up and modification of complex roles and permissions. Unlike traditional methods that require intricate code manipulation, Cerbos...
What each product offers, as listed by its team.


Possible disadvantages
Walkthroughs and reviews on video.
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Cerbos - How It Works - Intro
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Actera.dev and Cerbos.
Actera.dev's answer
Go for the API and policy engine, with gRPC and protobuf contracts, PostgreSQL and Redis. The web app is React and TypeScript. It runs on Kubernetes on AWS. Integrations include a TypeScript SDK, plugins for Claude Code and Codex built on their hook systems, and a remote MCP server for Claude.
Cerbos's answer:
Actera.dev's answer
Actera checks each action an AI agent tries to take before it runs, not after. Every action gets one of three outcomes: allowed, sent for approval, or blocked. Decisions use live context, such as approvals already given, the state of the workflow, spend so far today and what other agents have done, so one policy can give different answers to the same request. Policies are enforced outside the model, so no prompt, model update or clever wording can change them.
Cerbos's answer:
Cerbos stands out in the crowded authorization landscape due to its innovative approach to managing roles and permissions. Unlike traditional systems that embed authorization logic within an application's core code, Cerbos introduces a standalone, self-hosted, stateless service, transforming intricate coding tasks into simpler configurations. This separation not only streamlines the authorization process but also reduces potential security risks and system bottlenecks.
Being open-source, Cerbos fosters a strong community backing, ensuring its evolution aligns with real-world developer needs. Its adaptability is evident in its support for multiple SDKs, YAML configuration, and dynamic context handling, which cater to a wide range of environments and use-cases. This flexibility is further enhanced by Cerbos Cloud, a premium solution offering advanced policy management tools.
Furthermore, Cerbos emphasizes transparency, allowing both technical and non-technical stakeholders to understand and modify the permissions structure. This democratization of authorization logic management reduces reliance on specialized coding expertise. Additionally, its commitment to robust security features, including audit logging and risk mitigation, ensures that businesses can trust Cerbos to safeguard their authorization processes.
In essence, Cerbos' unique blend of innovation, adaptability, community support, and security focus reshapes the way businesses approach and manage authorization, making it a game-changer in the field.
Actera.dev's answer
Companies putting AI agents to work on real systems: engineering teams running coding agents such as Claude Code and Codex, and product teams building agents that issue refunds, change records, export data or deploy code. Finance, engineering and operations leads use Actera to set what each agent can do on its own, what needs approval and what is off limits, and compliance teams use the decision record to show auditors why an agent acted.
Cerbos's answer:
Cerbos' primary audience is best described as forward-thinking engineering leaders at the helm of emerging startups, particularly within the FinTech and Software Development sectors. These leaders typically oversee small to medium-sized teams, with 5-20 engineers, in companies that have a workforce ranging from 0 to 100 employees. Their technological stack prominently features Kubernetes (k8s), indicating a modern and scalable infrastructure.
Financially, these companies are in their early growth stages, having secured funding between 0 to 10 million dollars, primarily in the Seed to Series A range. This suggests that they are in a phase of rapid expansion and are actively seeking solutions that can seamlessly scale with their growth.
The primary objectives of Cerbos’ users revolve around finding a reliable solution to their authorization challenges, ensuring that the chosen solution can be implemented without disruptions, and that it scales effortlessly as the company grows. In essence, the Cerbos champion is a visionary engineering leader, keen on adopting innovative solutions that align with their company's rapid growth trajectory.
Cerbos's answer:
Cerbos, co-founded by Emre and Charith, emerged from a vision to revolutionize the way authorization is approached in modern, cloud-native applications. The duo recognized a persistent challenge in software development: the immense time and effort developers invest in crafting and continually updating custom permissions. This repetitive cycle not only consumes valuable time but also diverts attention from the core essence of product development.
Driven by this realization, Emre and Charith embarked on a mission with Cerbos: to make the implementation of access-control as seamless and painless as possible. Their goal was to eliminate the need for repeatedly writing and rewriting custom permissions implementations. Instead, they envisioned a world where developers could channel their energies and creativity into building outstanding products that resonate with and delight their customers.
Cerbos's answer:
Actera.dev's answer
Authorization tools like Cerbos and Permit.io answer whether a user may access a resource. Actera is built for agent actions: it adds approval routing with full context, actions that resume once approved, and a decision record with the policy behind every attempt. It also ships ready-made enforcement for coding agents (open-source plugins for Claude Code and Codex), a TypeScript SDK for your own agents, and a remote MCP connector so policies can be reviewed and written from Claude. Teams can test rules on real scenarios before publishing them, and there is a free plan.
Cerbos's answer:
A person should choose Cerbos over its competitors for several compelling reasons:
Innovative Design: Unlike many competitors, Cerbos separates the traditionally embedded authorization logic from the application's core code. This standalone, stateless service simplifies authorization changes, converting intricate coding tasks into straightforward configurations.
Open-Source Flexibility: Cerbos' open-source nature ensures continuous evolution based on real-world feedback. This community-driven approach ensures that the product remains relevant and adaptable to changing needs.
Transparency and Inclusivity: Cerbos' structure allows a broader range of stakeholders, both technical and non-technical, to understand and modify the permissions structure. This democratizes the authorization process, reducing the dependency on specialized coding expertise.
Robust Security: Cerbos places a strong emphasis on security, offering features like audit logging and risk mitigation. This commitment ensures businesses can trust Cerbos to maintain the integrity of their authorization processes.
Flexibility and Control: Cerbos provides complete control over its deployment, scaling, and monitoring. Unlike solutions that are solely cloud-based or hardcoded, Cerbos strikes a balance between flexibility, control, and security.
Clear Value Proposition: Cerbos offers straightforward pricing and a user-friendly approach, contrasting with competitors that may have complex pricing structures or less intuitive systems.
Community and Support: As an open-source project, Cerbos boasts a strong community backing, ensuring users have access to a wealth of knowledge and support.
In summary, Cerbos' unique blend of innovation, flexibility, transparency, and security makes it a superior choice in the authorization landscape.
Share your experience with using Actera.dev and Cerbos. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking Actera.dev since Nov 2026.
I wanted to get back to coding and play around with a simple way to explain how our product works(permission management platform, https://cerbos.dev). So I built the Cerbos Game, where players match incoming requests to permission... - Source: Hacker News / over 1 year ago
In this tutorial you will learn how to use Cerbos to add fine-grained access control to any Nuxt web application, simplifying authorization as a result. - Source: dev.to / almost 3 years ago
In my work with Cerbos, I apply the lessons learned from Da Vinci to tackle authorization challenges. Our approach is to create solutions where functionality seamlessly integrates with developer experience. Constantly iterating and... - Source: dev.to / almost 3 years ago
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