Vercel acquires Better Auth to accelerate open source auth
Vercel has acquired Better Auth, the open-source TypeScript authentication library with 4.7M+ weekly npm downloads. The Better Auth team is joining Vercel to continue developing the framework-agnostic auth library and advance agent identity capabilities for authentication and agentic infrastructure.
Vercel is acquiring , the company behind the open source , which has 4.7M+ weekly npm downloads and more than 850 contributors. Founder Bereket Engida and the core team are joining Vercel to continue their work on Better Auth and agent identity.Better AuthTypeScript authentication library
Last year, we behind Next.js, AI SDK, and Nuxt: software that's open by default, loosely coupled, and portable to any platform.published our approach
Better Auth applies it to authentication: framework-agnostic, runs anywhere, and gives developers auth they own.
When an agent acts on your behalf, it runs under your identity and access, so every service it touches sees you, not the agent. There's no clean way to limit what any one agent or subagent can do, or to shut down just one without cutting off the rest.
The Better Auth team has been building so that each agent can carry its own identity and its own scoped, revocable authority, with you as the single point of control. Agent identity is foundational to .Agent Authagentic infrastructure
The Better Auth team will continue that work at Vercel, bringing agent identity to and .Vercel Connecteve
The library remains free and open source under MIT, retains its name, and the team continues to lead development with the same open contribution model, community governance, and framework support across the ecosystem.
Read . Explore the and the , or contribute to the project on .the announcement on the Better Auth blogBetter Auth documentationAgent Auth ProtocolGitHub
The open web
Agent identity
What's next for Better Auth
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