Name: Authorizer
Rating: 4.75 (4 reviews)

Authorizer is an open-source authentication and authorization platform for modern applications and AI agents. Authorizer 2.4 adds OAuth 2.1 and MCP support, service accounts, agent-to-agent delegation, passkeys, enterprise SSO with SAML/OIDC, SCIM 2.0, multi-tenant organizations, and embedded OpenFGA-based fine-grained authorization.

Own your identity layer. Self-host open-source auth—OAuth2, OIDC, SAML SSO, SCIM, passkeys, MFA, OpenFGA—with permission-aware AI on your own data.

Hey Product Hunt I’m Lakhan, creator and maintainer of Authorizer. I’ve been working on Authorizer for the last few years, and today I’m launching 2.4.0. This one is a pretty big release. I’ve spent a lot of time working on identity for AI agents and machine-to-machine use cases, while also adding things that have been requested for enterprise deployments. 2.4.0 includes MCP and OAuth 2.1, service accounts, agent-to-agent delegation, passkeys, SAML/OIDC, SCIM, organizations, and OpenFGA-based authorization. I’d love to get some feedback from the PH community, especially from people building SaaS products, APIs, or AI agents. What are you using for auth and authorization today? If you get a chance to try Authorizer, let me know what you think. I’ll be here today.

I'm using Authorizer with Hasura and it's relatively easy to implement and it offers a nice set of features needed for authentication. The only thing missing is I18n for email templates.

Thank you for sharing this experience. Please create github issue for i18n in email templates and we will add it soon :-)

Easy to use and self-hostable. The key factor that sealed the deal for us was that it is built using golang and react which is our core stack and we could use it with our pre-existing MongoDB atlas instance.

Thank you @kolawole_ojo

Simple integration. Needs a bit more polish on the vue sdk.