Boundary vs Open Policy Agent
A side-by-side comparison of two self-hosted identity & sso options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Boundary
Identity-based secure access to systems and services
VS
Open Policy Agent
General-purpose policy engine for cloud-native stacks
| Feature | Boundary | Open Policy Agent |
|---|---|---|
| Category | Identity & SSO | Identity & SSO |
| License | BUSL-1.1 | Apache-2.0 |
| Language | Go | Go |
| Setup difficulty | Medium | Medium |
| Min. RAM | 512 MB | 256 MB |
| Deployment | docker, binary | docker, kubernetes, binary |
| GitHub stars | ★ 4,055 | ★ 12,086 |
| First released | 2020 | 2016 |
| Replaces | Teleport, StrongDM | AWS IAM policies |
Why pick each one
Choose Boundary if…
- Released under the BUSL-1.1 license
- First-class Docker support for quick deployment
- Active community (4.1k GitHub stars)
- Written in Go
Choose Open Policy Agent if…
- Released under the Apache-2.0 license
- First-class Docker support for quick deployment
- Kubernetes-ready with Helm charts available
- Mature project with 12.1k GitHub stars
Frequently asked questions
Is Boundary or Open Policy Agent better?
Neither is universally better. Open Policy Agent has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Boundary and Open Policy Agent free and open-source?
Yes. Boundary is licensed under BUSL-1.1 and Open Policy Agent under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Boundary and Open Policy Agent with Docker?
Boundary: yes. Open Policy Agent: yes.