Vercel Acquires Better Auth to Build Agent Identity Into Its Stack

Vercel·medium signal

Vercel is acquiring Better Auth, the open-source TypeScript auth library with 4.7M+ weekly npm downloads and 850+ contributors; the library stays free and MIT-licensed with the same team leading it. The strategic thrust is agent identity — Better Auth's Agent Auth gives each AI agent its own scoped, revocable identity with the user as the single point of control. For builders, it signals auth infrastructure reorganizing around agents acting on users' behalf.