* [Better Auth v1.7.0](https://github.com/better-auth/better-auth) – Framework-agnostic authentication and authorization library for TypeScript with a plugin ecosystem for advanced features.

* [ZITADEL v4.17.0](https://github.com/zitadel/zitadel) – Identity infrastructure solution offering features like multi-tenancy, secure login, and self-service.

* [Cosmos v0.23.0](https://github.com/azukaar/Cosmos-Server) – Secure self-hosted home server solution for managing applications with built-in security and ease of use.

* [PocketBase v0.40.0](https://github.com/pocketbase/pocketbase) – Go backend with an embedded database, real-time subscriptions, user management, and a simple API.

* [Authorizer 2.4.0](https://github.com/authorizerdev/authorizer) – Authentication and authorization server that self-hosts and integrates with your database for user management and session handling.

* [ThunderID v1.0.0](https://github.com/thunder-id/thunderid) – Lightweight IAM engine securing access for humans, AI agents, and machines, supporting decentralized identity and post-quantum-ready security.

* [ruby-auth0 v6.0.0](https://github.com/auth0/ruby-auth0) – Ruby API client for the Auth0 platform.

* [auth0-react v2.24.0](https://github.com/auth0/auth0-react) – Auth0 SDK for integrating authentication in React Single Page Applications.

* [TOUGHRADIUS v9.3.0](https://github.com/talkincode/toughradius) – Powerful RADIUS server with RadSec support and a modern Web management interface for ISPs and enterprises.

* [Magistrala v0.50.0](https://github.com/absmach/magistrala) – Industrial IoT messaging and device management platform for scalable, secure multi-protocol deployments.

* [Logto v1.42.0](https://github.com/logto-io/logto) – Modern auth infrastructure supporting OIDC, OAuth 2.1, multi-tenancy, SSO, and RBAC for SaaS and AI applications.

* [codex-multi-auth v2.9.0](https://github.com/ndycode/codex-multi-auth) – Multi-account OAuth manager for the official Codex CLI with resilient routing, quota-aware rotation, and terminal-first diagnostics.

* [Nhost @nhost/dashboard@3.5...](https://github.com/nhost/nhost) – Open source alternative to Firebase that provides a GraphQL API and various backend services.

* [Descope SDK for Node.js v2.15.0](https://github.com/descope/node-sdk) – Node.js SDK providing backend access to user management and authentication APIs.

* [Authula v1.42.0](https://github.com/Authula/authula) – Embeddable Go library or standalone auth server with plugin-based, composable authentication and extensible hooks.

* [Tyro Login v2.14.0](https://github.com/hasinhayder/tyro-login) – Customizable Laravel 12 authentication UI and features with multiple layouts, social logins, OTP, captcha, and email workflows.

* [oc-codex-multi-auth v6.14.0](https://github.com/ndycode/oc-codex-multi-auth) – OpenCode plugin enabling ChatGPT Plus/Pro OAuth access, GPT-5/Codex model presets, multi-account rotation with failover, and guided setup.

* [fn-knock v2.3.0](https://github.com/kci-lnk/fn-knock-turborepo) – Secure, multi-platform DDNS and WAF gateway with a Rust control plane and Go gateway, providing SSL automation, identity, and web console access.

* [Frontier v0.115.0](https://github.com/raystack/frontier) – Identity and access management platform with user, organization, project, group, authentication, authorization, billing, auditing, and reporting features.

* [Goiabada v1.6.0](https://github.com/leodip/goiabada) – OAuth2 and OpenID Connect server in Go providing self-hosted authentication, SSO, 2FA, and fine-grained authorization.

* [Casdoor Go SDK v1.53.0](https://github.com/casdoor/casdoor-go-sdk) – Go client library providing OAuth2-based authentication, authorization, user and resource management APIs.

* [@fastify/auth v5.1.0](https://github.com/fastify/fastify-auth) – Run multiple authentication functions in Fastify routes with configurable logical relations.

* [Limen v0.2.0](https://github.com/thecodearcher/limen) – Modern plugin-first composable authentication library for Go with modular plugins, adapters, session and security primitives.

* [ZeroID v1.8.0](https://github.com/highflame-ai/zeroid) – Identity infrastructure that issues verifiable agent credentials, enforces delegated on-behalf-of chains, and enables real-time revocation.

* [Kinde React 5.13.0](https://github.com/kinde-oss/kinde-auth-react) – SDK for React to manage frontend authentication flows.

* [Tinyauth v5.1.3](https://github.com/tinyauthapp/tinyauth) – Tinyauth is a tiny authentication and authorization server acting as middleware or standalone, supporting OAuth, LDAP, and access controls with common reverse proxies.

* [Hexclave dashboard-v1.0.106](https://github.com/hexclave/hexclave) – User infrastructure platform providing switchable apps for authentication, teams, payments, emails, analytics, and more across cloud or self-hosted deployments.

* [Magic JavaScript SDK @magic-sdk/types@27....](https://github.com/magiclabs/magic-js) – JavaScript SDK for frictionless web3 onboarding with a focus on security and privacy.

* [Official Clerk JavaScript SDKs @clerk/expo@4.6.0](https://github.com/clerk/javascript) – SDKs for building user management and authentication experiences.

* [Descope SDK for Go v1.31.0](https://github.com/descope/go-sdk) – Go library providing access to user management and authentication APIs for backend services.

* [rodauth-rails v2.2.2](https://github.com/janko/rodauth-rails) – Rodauth-based Rails integration providing middleware, generators, routes, and database setup for robust authentication features including multi-factor support.

* [Svelte Clerk v1.1.15](https://github.com/clerk-community/svelte-clerk) – Svelte and SvelteKit authentication SDK that adds sign up, sign in, and profile management quickly.

* [Unkey control-api/v1.1.18](https://github.com/unkeyed/unkey) – API authentication and authorization platform for modern developer workflows.

* [oauth4webapi v3.8.7](https://github.com/panva/oauth4webapi) – Low-level API for building OAuth 2.1 and OpenID Connect client modules in JavaScript runtimes.

* [Kinde NextJS v2.13.1](https://github.com/kinde-oss/kinde-auth-nextjs) – SDK for authentication in NextJS applications.

* [Fingerprint Scanner v1.0.8](https://github.com/antoinevastel/fpscanner) – Lightweight browser fingerprinting library for bot detection.

* [opencode-claude-auth v2.1.6](https://github.com/griffinmartin/opencode-claude-auth) – Self-contained Anthropic auth provider for OpenCode using Claude Code credentials, no separate login or API key needed.

* [Descope JS web-component-4.0.0](https://github.com/descope/descope-js) – Collection of JavaScript client authentication SDKs, embeddable widgets, and helper libraries for integrating authentication flows and session management.

* [Heimdall v0.17.19](https://github.com/dadrus/heimdall) – Cloud-native identity-aware proxy and access-control decision service.

* [caam - Coding Agent Account Manager v0.1.17](https://github.com/Dicklesworthstone/coding_agent_account_manager) – Sub-100ms auth switching for AI coding CLIs to instantly swap subscription accounts when usage limits are reached.