Does Better Auth support Cloudflare D1 directly?

No, Better Auth does not have a direct d1Adapter. You must use Drizzle ORM or Kysely with a D1 dialect to interface with the database.

What happened to the MCP plugin in version 1.4?

The MCP plugin has been deprecated and replaced by the more robust OAuth 2.1 Provider plugin for building custom auth providers.

Is Better Auth compatible with TanStack Start?

Yes, but you must include the reactStartCookies plugin as the last item in your configuration to ensure cookies are handled properly.

Can I use this for multi-tenant SaaS applications?

Yes, Better Auth includes specific plugins for organizations, teams, and Role-Based Access Control (RBAC) designed for multi-tenant architectures.

Is Better Auth ESM compatible?

As of version 1.4.0, Better Auth is an ESM-only package and no longer supports CommonJS.

Better Auth for Cloudflare Workers

Name: Better Auth for Cloudflare Workers
Author: evolv3ai

byevolv3ai

0•

Security & Testing

Implements production-ready, self-hosted authentication for TypeScript and Cloudflare Workers using D1, Drizzle, or Kysely.

Better Auth is a comprehensive, self-hosted authentication solution designed for the modern TypeScript ecosystem, specifically optimized for Cloudflare Workers and D1 databases. This skill provides Claude with the specialized knowledge to implement complex authentication patterns—including social login, 2FA, passkeys, and RBAC—while navigating critical implementation details like the Drizzle/Kysely requirement for D1. It enables the creation of multi-tenant SaaS platforms, custom OAuth 2.1 providers, and secure session management without the reliance on third-party services like Clerk or Auth.js.

Key Features

01Advanced Multi-tenant SaaS support with Organizations and RBAC

02Framework-specific optimizations for TanStack Start and Expo

030 GitHub stars

04Social Auth, 2FA, Passkeys, and SSO/SAML 2.0 plugin implementation

05Custom OAuth 2.1 Provider setup for building internal auth services

06D1 Database integration patterns via Drizzle ORM and Kysely adapters

Use Cases

01Building a self-hosted authentication system on Cloudflare Workers and D1

02Implementing enterprise features like SCIM provisioning and SAML SSO

03Migrating from third-party auth providers to a custom TypeScript-based solution

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add evolv3ai/claude-skills-archive better-auth

For use in Claude.ai and ChatGPT

Download Skill