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Top 9 Go oauth2 Projects
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I set up Authentik[^1] on my NAS in a docker container and went from there! Just had to add a .well-known webfinger file to my domain that pointed to the Authentik instance and it "just worked" with Tailscale.
[^1]: https://goauthentik.io/
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Ory Hydra
The only web-scale, fully customizable OpenID Certified™ OpenID Connect and OAuth2 Provider in the world. Become an OpenID Connect and OAuth2 Provider over night. Written in Go, cloud native, headless, API-first. Available as a service on Ory Network and for self-hosters. Relied upon by OpenAI and others for web-scale security.
Project mention: Cloudlflare builds OAuth with Claude and publishes all the prompts | news.ycombinator.com | 2025-06-02Very impressive, and at the same time very scary because who knows what security issues are hidden beneath the surface. Not even Claude knows! There is very reliable tooling like https://github.com/ory/hydra readily available that has gone through years of iteration and pentests. There are also lots of libraries - even for NodeJS - that have gone through certification.
In my view this is an antipattern of AI usage.
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Sevalla
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Ferrum
Simple and Fast OpenId-Connect authorization server with Keycloak compatible API written in GO. The possibility to increase application clients number and authentication/authorization speed without any modification due to the API compatibility (by Wissance)
This approach and package could be used not only for containerized applications but for apps running natively too. This package is successfully working on our authorization server.
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Project mention: Ask HN: What are you working on (September 2024)? | news.ycombinator.com | 2024-09-29
I built a service that lets you bolt an oauth/oidc provider onto your app with a single callback. https://github.com/poundifdef/connectivly
It lets you use whatever you’re already doing for auth, and lets you become an oauth provider, or issue tokens instead of people passing API keys, on top of that.
The more interesting aspect of that you could use it to bolt on an entire app store or ecosystem on top of your existing product or api.
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Go oauth2 discussion
Go oauth2 related posts
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Issues with authentik
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Authentik + Cloudflare + Nginx = 500 error
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Server Security
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Authentik with Docker swarm
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Architecting a good homelab ingress
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Authentik: Open-source Identity Provider focused on flexibility and versatility
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Two months into self hosting
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A note from our sponsor - InfluxDB
www.influxdata.com | 1 Sep 2025
Index
What are some of the best open-source oauth2 projects in Go? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | authentik | 17,915 |
| 2 | Ory Hydra | 16,473 |
| 3 | oauth2 | 3,526 |
| 4 | go-oauth2-server | 2,129 |
| 5 | Golang API Starter Kit | 963 |
| 6 | goiabada | 156 |
| 7 | auth-server | 81 |
| 8 | Ferrum | 24 |
| 9 | connectivly | 11 |
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InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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