--- title: "Better Auth: MCP vendor profile | Agent MCP Directory" description: "Better Auth: auth provider. Products: @better-auth/mcp. 6 dated facts, prices, standards and two checks, each sourced, read 5 November 2026." canonical: https://agentmcpdirectory.com/vendors/better-auth site: "Agent MCP Directory" last_updated: 2026-11-05 section: "Vendors" --- # Better Auth: MCP vendor profile | Agent MCP Directory > Better Auth: auth provider. Products: @better-auth/mcp. 6 dated facts, prices, standards and two checks, each sourced, read 5 November 2026. Source: https://agentmcpdirectory.com/vendors/better-auth Site: Agent MCP Directory Last reviewed: 2026-11-05 # Better Auth: MCP vendor profile Better Auth is an open-source TypeScript authentication framework whose MCP plugin turns the app into an OAuth authorization server and protected resource for MCP clients, including the 2026-07-28 profile with CIMD, as documented by the vendor. mcp() configures MCP resource binding and serves RFC 9728 protected resource metadata (www.better-auth.com). ## At a glance | Listed as | Better Auth (MCP plugin) | | --- | --- | | Type | Auth providers | | Home | www.better-auth.com | | Price | open source | | Read | 5 November 2026 | ## What it does for this layer The Better Auth MCP plugin requires the JWT plugin, which provides the signing key for ID and access tokens and exposes a /jwks endpoint ([www.better-auth.com](https://www.better-auth.com/docs/plugins/mcp)). Better Auth's MCP plugin lets an app "act as an OAuth authorization server and protected resource" for MCP clients, built on its OAuth 2.1 Provider plugin ([www.better-auth.com](https://www.better-auth.com/docs/plugins/mcp)). For the MCP 2026-07-28 profile, Better Auth composes the MCP plugin with Client ID Metadata Documents through the @better-auth/cimd companion package ([www.better-auth.com](https://www.better-auth.com/docs/plugins/mcp)). Better Auth's MCP install uses @better-auth/mcp, @better-auth/cimd and version 2 of the official MCP TypeScript SDK (@modelcontextprotocol/server) ([www.better-auth.com](https://www.better-auth.com/docs/plugins/mcp)). Better Auth calls itself "The most comprehensive authentication framework for TypeScript" ([www.better-auth.com](https://www.better-auth.com/), vendor's own claim). ## Products and plans | Product | What it does | Price | | --- | --- | --- | | @better-auth/mcp | Open-source plugin that makes a Better Auth app an MCP authorization server. | open source; from 0 USD (source, as of 5 November 2026) | ## Standards | Standard | Part of it | Status | What the page says | Source | | --- | --- | --- | --- | --- | | MCP | spec revision | Supports | Documents a 2026-07-28 profile composed with CIMD. | www.better-auth.com | | MCP | protected resource metadata | Supports | Serves RFC 9728 protected resource metadata. | www.better-auth.com | | MCP | client ID metadata documents | Supports | @better-auth/cimd companion package. | www.better-auth.com | ## Checks on its own domain | Check | Domain | Result | Scanned | Method | | --- | --- | --- | --- | --- | | Ora cached score | better-auth.com | 66 of 100, grade C | 16 September 2026 | how it was taken | | Cloudflare agent-readiness scan | better-auth.com | 7 of 100, L0 Not Ready; 1 of 15 counted checks passed | 5 November 2026 | how it was taken | ## What it does not do - Better Auth is a library the developer runs; it is not a hosted identity service on the pages read. ## Related on this site Type - [Auth providers](https://agentmcpdirectory.com/vendors/by-type/auth-provider/) Standards - [MCP](https://agentmcpdirectory.com/standards/mcp/) Section - [All vendors](https://agentmcpdirectory.com/vendors/) Edition 4 November 2026 Method [How rows are verified](https://agentmcpdirectory.com/method/) Data [CSV and JSON](https://agentmcpdirectory.com/data/) Markdown [This page as markdown](https://agentmcpdirectory.com/vendors/better-auth/index.md) ## Sources - [MCP plugin - Better Auth docs](https://www.better-auth.com/docs/plugins/mcp), read 5 November 2026 - [Better Auth](https://www.better-auth.com/), read 5 November 2026 Last reviewed 5 November 2026