# Nextbase

> Nextbase provides SaaS starter kits with authentication, workspaces, billing and an admin area. The v5 lineup includes Next.js and TanStack kits for Supabase, Convex, Neon and Cloudflare D1, with separate user and admin agent connections through the Model Context Protocol (MCP).

Use the v5 documentation for current starter behavior and setup. Older documentation versions describe earlier releases. Each starter overview links to its installation, environment variables, authentication, project structure and deployment guides.

The TanStack + Convex kit uses TanStack Start. The other TanStack kits use React Router with TanStack Query. Authentication, hosting and available MCP tools vary by kit; consult the starter comparison and tools-and-permissions guide for details. The free Next.js + Supabase starter is a separate, smaller offering. Consult the pricing and terms pages for current purchase and license details.

## Product and pricing

- [Nextbase overview](https://usenextbase.com/): Starter-kit lineup, included capabilities and links to live demos.
- [Pricing](https://usenextbase.com/#pricing): Current kit options, prices and purchase details.
- [Next.js + Supabase starter kit](https://usenextbase.com/nextjs-supabase-starter-kit): Paid Next.js kit with Supabase authentication, database and workspace features.
- [TanStack Start + Convex starter kit](https://usenextbase.com/tanstack-start-convex-saas-starter-kit): Paid TanStack Start kit with a reactive Convex backend.
- [Free Next.js + Supabase starter](https://usenextbase.com/free/open-source-nextjs-supabase-starter): MIT-licensed starter with authentication and per-user database access policies.

## Current documentation

- [Nextbase v5](https://usenextbase.com/docs/v5): Current release overview and recommended learning path.
- [Choose your starter](https://usenextbase.com/docs/v5/choose-your-starter): Compare all eight kits by app framework, database, authentication and hosting.
- [Getting started](https://usenextbase.com/docs/v5/getting-started): Choose a repository, configure the project and run your first app.
- [Authentication](https://usenextbase.com/docs/v5/authentication): Login providers, callback configuration and the relationship between user sessions and agent access.
- [Workspaces and admin](https://usenextbase.com/docs/v5/workspaces-and-admin): Workspace membership, roles and application administration.
- [Email](https://usenextbase.com/docs/v5/emails): Configure transactional email delivery for your stack.
- [Deployment](https://usenextbase.com/docs/v5/deployment): Hosting guidance and links to Vercel and Cloudflare deployment instructions.
- [Troubleshooting](https://usenextbase.com/docs/v5/troubleshooting): Common setup, authentication and agent-connection problems.

## Starter-specific guides

- [Next.js + Supabase](https://usenextbase.com/docs/v5/starters/nextjs-supabase): Next.js App Router, Supabase Postgres and Supabase Auth, hosted on Vercel.
- [TanStack + Supabase](https://usenextbase.com/docs/v5/starters/tanstack-supabase): React Router with Express and TanStack Query, Supabase Postgres and Supabase Auth.
- [Next.js + Convex](https://usenextbase.com/docs/v5/starters/nextjs-convex): Next.js App Router with Convex data, functions and authentication.
- [TanStack + Convex](https://usenextbase.com/docs/v5/starters/tanstack-convex): TanStack Start with Convex data, functions and authentication.
- [Next.js + Neon](https://usenextbase.com/docs/v5/starters/nextjs-neon): Next.js App Router with Neon Postgres, Drizzle and Better Auth.
- [TanStack + Neon](https://usenextbase.com/docs/v5/starters/tanstack-neon): React Router with Express and TanStack Query, Neon Postgres, Drizzle and Better Auth.
- [Next.js + Cloudflare D1](https://usenextbase.com/docs/v5/starters/nextjs-d1): Next.js through OpenNext on Cloudflare Workers, with D1 and Better Auth.
- [TanStack + Cloudflare D1](https://usenextbase.com/docs/v5/starters/tanstack-d1): React Router on Cloudflare Workers with TanStack Query, D1 and Better Auth.

## Working with agents

- [Building with coding agents](https://usenextbase.com/docs/v5/building-with-agents): Repository instructions, skills and a workflow for implementing product features.
- [Connect an agent](https://usenextbase.com/docs/v5/agent-connections/connect-an-agent): Connect an MCP client through OAuth with user-approved workspace access or a separate admin connection.
- [Tools and permissions](https://usenextbase.com/docs/v5/agent-connections/tools-and-permissions): Available tools, read and write scopes, consent and access restrictions for each kit.
- [Local Supabase development](https://usenextbase.com/docs/v5/local-supabase): Isolate local databases and credentials when using worktrees and multiple coding agents.

## Optional

- [Component library](https://usenextbase.com/components): Browse reusable UI components.
- [Blog](https://usenextbase.com/blog): Articles and tutorials about building SaaS products.
- [Changelog](https://usenextbase.com/changelog): Published product updates.
- [Support](https://usenextbase.com/support): Community and contact options for getting help.
- [Terms](https://usenextbase.com/terms): Terms governing use of the website and products.
- [Privacy](https://usenextbase.com/privacy): Website privacy policy.