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About

Cerbos is an authorization management platform for defining, deploying and evaluating access-control policies across applications and services. Developers can use its policy decision point (PDP) to evaluate authorization requests, while teams author and manage policies for role-, relationship- and attribute-based access control. Cerbos supports local, self-hosted and cloud-based workflows, with policy testing, observability and audit information for reviewing authorization decisions. Cerbos Hub provides a managed environment for organizing and distributing policies, and the open-source Cerbos PDP can be deployed alongside application workloads. The platform is intended for engineering, security and product teams that need consistent, fine-grained authorization for users, services and other identities across distributed systems.

About

Kastra is the authorization layer for AI systems, deciding what agents, models, and AI tools are allowed to do before they do it. It sits in the execution path of every prompt, tool call, shell command, database operation, and API request, evaluates each action against deterministic, attribute-based policy, and returns an allow, deny, redact, or escalate decision in under a millisecond. Unlike monitoring products that observe AI after it acts, Kastra blocks unauthorized behavior before it reaches a tool, API, database, or production system. Its unified control plane combines a policy engine, edge decision points, integrations, and a tamper-evident evidence vault that signs every decision for audit and replay. Kastra Edge brings local enforcement to developer machines, protecting Claude Code, Cursor, Codex CLI, and other coding agents from destructive commands, secret exfiltration, unsafe file writes, and unauthorized tool use.

Platforms Supported

Windows Not Supported
Mac Supported
Linux Supported
Cloud Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Engineering, security and product teams that need fine-grained, auditable authorization across applications, gateways, workloads and AI agents.

Audience

AI engineering and security teams that need to enforce authorization policies and audit every action performed by AI systems before execution

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

$25/month
The open-source Cerbos PDP is free forever. Cerbos Hub Proof of Concept is $0/month for up to 100 monthly active principals. Development starts at $25/month and includes the first 100 monthly active principals; a three-month free trial is offered. Production starts at $933/month and includes the first 5,000 monthly active principals. Enterprise plans have custom pricing.
Free Version Supported
Free Trial Supported

Pricing

$19.99 per month
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Company Information

Cerbos
Founded: 2021
United Kingdom
www.cerbos.dev

Company Information

Kastra
Founded: 2026
United States
kastra.ai/

Alternatives

Alternatives

Cedar

Cedar

Amazon
OpenFGA

OpenFGA

The Linux Foundation

Categories

Categories

AI Governance Supported

Integrations

Apache Kafka Supported
Claude Code Not Supported
Codex CLI Not Supported
Cursor Not Supported
Envoy Supported
Go Not Supported
Google Sheets Not Supported
JSON Not Supported
Java Not Supported
Microsoft Excel Not Supported
Model Context Protocol (MCP) Supported
OpenAI Not Supported
OpenClaw Not Supported
Python Not Supported
Rust Not Supported
Slack Not Supported
Swift Not Supported
Trino Supported
TypeScript Not Supported
YAML Not Supported

Integrations

Apache Kafka Not Supported
Claude Code Supported
Codex CLI Supported
Cursor Supported
Envoy Not Supported
Go Supported
Google Sheets Supported
JSON Supported
Java Supported
Microsoft Excel Supported
Model Context Protocol (MCP) Not Supported
OpenAI Supported
OpenClaw Supported
Python Supported
Rust Supported
Slack Supported
Swift Supported
Trino Not Supported
TypeScript Supported
YAML Supported
Claim Cerbos and update features and information
Claim Cerbos and update features and information
Claim Kastra and update features and information
Claim Kastra and update features and information