Ory

Ory is an open-source identity and access management platform built for modern, cloud-native architectures. Its modular, headless design lets teams compose exactly the identity stack they need — from customer login flows to B2B delegated access to machine identities for AI agents.

The Ory ecosystem includes Kratos (identity management), Hydra (OAuth 2.0/OIDC server), Keto (permissions), and Oathkeeper (reverse proxy) — each independently deployable or combined via Ory Network, the fully managed SaaS. With stateless horizontal scaling, the platform is proven at 2.5+ billion identities.

Key features:

• CIAM, B2B IAM, Workforce IAM, and Agent IAM — purpose-built flows for each use case
• Headless architecture — bring your own UI, integrate into any stack
• Modular OSS components — Kratos, Hydra, Keto, Oathkeeper (Apache 2.0)
• Ory Network — fully managed cloud with zero-ops deployment
• Trillion-scale — stateless horizontal scaling with full observability
• AI agent identities — purpose-built for securing non-human actors
• Enterprise license — on-premises deployment with premium support

Used by OpenAI, Société Générale, Mistral AI, Axel Springer, and commercetools. The full stack is open source, auditable, and self-hostable — with Ory Network for teams that want a managed option.