Fine-grained authorization and policy engines — what identities are allowed to do.
4 vendors ·
Quick answer
Short answer
Authorization platforms decide what an already-authenticated identity — human, workload, or AI agent — is allowed to do. They externalize RBAC, ABAC, PBAC, and ReBAC policy from application code into policy engines that are testable, auditable, and consistently enforced across services, APIs, and infrastructure.
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Cerbos is an authorization management platform built around an open source policy decision point (PDP). It enforces fine-grained RBAC, ABAC, PBAC, and ReBAC policies for applications, APIs, workloads, and AI agents.
Keycard is an identity and access platform purpose-built for AI agents, founded by former Snyk and Auth0 leaders (including the creator of Passport.js). It verifies agent identity, mints short-lived task-scoped tokens in place of static API keys, and enforces runtime policy with auditable logs.
P0 Security provides an authorization control plane that discovers users, service accounts, agents, and MCP servers with sensitive access, then enforces just-in-time, short-lived access and centralized policy governance across cloud providers, Kubernetes, databases, and servers. It positions itself as a cloud-native alternative to traditional PAM.
Permit.io provides authorization-as-a-service with a low-code policy management interface, RBAC/ABAC/ReBAC policy support, and a managed policy decision layer — enabling teams to ship fine-grained access control without building it from scratch.
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