ory/hydra
# Internet-scale OpenID Certified™ OpenID Connect and OAuth2.1 provider that integrates with your user management through headless APIs. Solve OIDC/OAuth2 user cases over night. Consume as a service on Ory Network or self-host. Trusted by OpenAI and many others for scale and security. Written in Go.
$ git clone https://github.com/ory/hydra.git
stars
17,418
forks
1,593
language
Go
license
Apache License 2.0
What is ory/hydra?
Hydra is an OpenID Connect and OAuth 2.1 server written in Go that handles authentication and authorization at scale. Developers use it to quickly implement secure login and single sign-on (SSO) functionality by integrating it with their own user management systems through APIs, rather than building these systems from scratch. It can be deployed as a self-hosted service or consumed through Ory Network, making it suitable for projects ranging from small applications to internet-scale platforms.
Links
Topics
Activity
135 open issues · last updated Jul 22, 2026