* [auth0-spa-js v2.21.0](https://github.com/auth0/auth0-spa-js) – SDK for Single Page Applications using Authorization Code Grant Flow with PKCE.

* [Nango v0.70.6](https://github.com/NangoHQ/nango) – Complete infrastructure for building product integrations: API auth, request proxying, data syncing, webhooks, and observability for 500+ APIs.

* [Better Auth v1.6.13](https://github.com/better-auth/better-auth) – Framework-agnostic authentication and authorization library for TypeScript with a plugin ecosystem for advanced features.

* [InsForge v2.1.10](https://github.com/InsForge/InsForge) – Agent-native platform enabling AI agents to autonomously build and manage full-stack applications with backend features.

* [tsidp v0.0.14](https://github.com/tailscale/tsidp) – OIDC and OAuth identity provider server that uses Tailscale identities for authenticating compatible applications and MCP connections.

* [OAuth 2.0 Authorization Framework v2.0.20](https://github.com/ruby-oauth/oauth2) – RubyGem for implementing OAuth 2.0 clients with support for various authorization flows.

* [auth v2.1.4](https://github.com/go-pkgz/auth) – OAuth2 and direct credential authentication with email and Telegram verification, JWT-in-cookie sessions, avatar support, and middleware.

* [Alby JS SDK v8.0.3](https://github.com/getAlby/js-sdk) – JavaScript SDK for interacting with Bitcoin Lightning wallets via Nostr Wallet Connect or OAuth wallet APIs.