---
title: "Permit.io vs Open Policy Agent (OPA) — Identity Tool Comparison | IDSync"
url: https://idsync.com/compare/opa-vs-permit-io
description: "Side-by-side comparison of Permit.io vs Open Policy Agent (OPA): best for, pricing, deployment, integrations, and more."
lang: en
---

# Permit.io vs Open Policy Agent (OPA)

Side-by-side comparison of identity tools. Sponsored placement is disclosed where applicable.

Last updated today

Quick answer

## Permit.io vs Open Policy Agent (OPA): which should you choose?

Short answer

Permit.io vs Open Policy Agent (OPA) have overlapping use cases in identity and access management. The right pick depends on your company size, deployment model, integrations, and pricing tolerance — compare those attributes side-by-side below.

Best for

Permit.io: Engineering teams that need to ship fine-grained authorization across their application and want both programmatic API access and a low-code interface for policy administrators to manage permissions without engineering involvement. · Open Policy Agent (OPA): Platform and security engineering teams that want one policy-as-code engine spanning application authorization, Kubernetes admission, service-mesh and infrastructure checks, and are prepared to operate it themselves.

When to choose

Pick the option whose company-size fit, deployment model, and integrations most closely match your stack.

When not to choose

Skip a head-to-head if you haven't shortlisted a category yet — start with the IAM Stack Finder instead.

Related tools & categories

Permit.io: https://idsync.com/directory/permit-io
Open Policy Agent (OPA): https://idsync.com/directory/opa
IAM Stack Finder: https://idsync.com/stack-finder
Buyer resources: https://idsync.com/resources

| Attribute | Permit.io: https://idsync.com/directory/permit-io | Open Policy Agent (OPA): https://idsync.com/directory/opa |
| --- | --- | --- |
| Best for | Engineering teams that need to ship fine-grained authorization across their application and want both programmatic API access and a low-code interface for policy administrators to manage permissions without engineering involvement. | Platform and security engineering teams that want one policy-as-code engine spanning application authorization, Kubernetes admission, service-mesh and infrastructure checks, and are prepared to operate it themselves. |
| Short description | 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. | Open Policy Agent is an Apache 2.0, CNCF Graduated policy engine that evaluates Rego policies for application authorization, Kubernetes admission (Gatekeeper), Envoy/Istio, Terraform and CI/CD. It returns decisions; your services enforce them. |
| Company size | Startup, Mid-market, Enterprise | startup, smb, mid_market, enterprise |
| Deployment | SaaS / Cloud-hosted | self_hosted |
| Source | Open core (built on OPA/OPAL open standards; management layer is proprietary) | open source |
| Pricing model | MAU and evaluation-based; free tier available | free (open source) |
| Integrations | OPA, OPAL, Python, Node.js, Java, Go, REST APIs | Kubernetes, Envoy, Istio, Terraform, Kafka, Docker, AWS, Kong |
| Categories | Authorization | Authorization |
| Claimed profile | | |

Buyer help

### Request a vendor shortlist

Tell us what you're evaluating and IDSync will identify the identity, access, and security tools that fit your use case.

Request shortlist → (https://idsync.com/request-shortlist)

### Request a vendor shortlist

Tell us your stack and we'll send a tailored shortlist.
https://idsync.com/request-shortlist

### Run the IAM Stack Finder

Get a guided shortlist in under 3 minutes.
https://idsync.com/stack-finder

### Buyer's guides & checklists

RFP templates, migration checklists, and rollout playbooks.
https://idsync.com/resources

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