Permit.io

Overview

Permit.io is a full-stack authorization platform that wraps open-source engines (notably Open Policy Agent and OPAL, plus support for relationship-based models) behind a no-code policy UI, SDKs, and a managed control plane. Founded in 2021 and privately held, it aims to give teams a complete authorization layer (policy management, a decision point, and audit) without building one from scratch. Like Aserto and PlainID, it is a policy-management and PDP platform rather than a single raw engine, but it leans more toward startups and developers than the enterprise-heavy positioning of PlainID.

What it is good at

Breadth of model is the headline: RBAC, ABAC, and ReBAC are all available through one interface, so you can start with simple roles and grow into attributes and relationships without swapping tools. The no-code policy editor lets non-engineers manage access while developers integrate through SDKs in most major languages. Because enforcement runs through a local PDP sidecar (built on OPA/OPAL), decisions stay fast and policy updates distribute in near real time. Onboarding and documentation are developer-friendly.

Where it falls short

The abstraction is a dependency: you are relying on Permit.io's layer over the underlying engines, and very advanced users may prefer running OPA or a Zanzibar engine directly for full control. Enterprise governance and scale features are still maturing relative to incumbents, and as an authorization-only product it does nothing for authentication, SSO, or MFA.

Pricing

Free tier for getting started, with usage-based paid plans as you scale monthly active users and policy volume. Confirm current limits on their pricing page, and model real costs with the TCO calculator.

Best for, and who should look elsewhere

Choose Permit.io if you want a managed, multi-model authorization layer with a UI and SDKs and you do not want to operate the engines yourself. If you want a single open-source engine you fully control, look at OpenFGA or Cerbos; see OpenFGA vs Cerbos and the authorization guide.

Bottom line

A strong pick for teams that want authorization delivered as a managed, multi-model layer with a friendly UI rather than a raw engine to run and govern themselves.