openshift/osin

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1933 stars · 395 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

OSIN is a Go library for building your own OAuth2 authentication server, implementing the RFC 6749 specification including authorization and token endpoints and most grant types. It also supports PKCE for more secure code-exchange flows with public clients.

Use cases

• build an oauth2 authorization server in go
• implement oauth2 token endpoint for my api
• add pkce support to my oauth2 code flow
• issue access tokens for a go web service
• implement client credentials grant in go
• self-host an oauth2 provider

When to choose

• you need a low-level, embeddable OAuth2 server library in Go that you can wire into your own HTTP handlers and storage backend
• you need RFC 6749 grant types plus PKCE support
• you want to plug in your own storage (Postgres, MySQL, Redis, etc.) via a simple interface

When to avoid

• you want a turnkey, fully-featured identity provider with user management out of the box (consider Keycloak or Ory Hydra)
• you need an OAuth2 client library rather than a server
• you need active development and modern maintenance - the project sees infrequent updates

Facets

library · maturity maintenance

auth http-server security security apis backend web-development go cross-platform oauth2 oauth2-server pkce authentication authorization-server

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