Sellbase MCP server

Sellbase

An open source Shopify alternative you drop into your existing project, run by your AI agent.

Add products, a cart, Stripe checkout and an admin to the Next.js, React or plain HTML site you already have, on the Supabase you already use, with one command: npx sellbase init. Also included: orders, inventory, abandoned carts, discounts, appointments, emails, an API and an MCP server.

Quick start · Features · Docs · Deploy · Contributing · Español

Why Sellbase

• Yours, end to end. Your data lives in your Postgres, your money goes to your Stripe account and your code stays in your repo. There is no platform fee, no lock-in and no Sellbase servers in between. MIT licensed.
• AI-first. sellbase init writes CLAUDE.md/AGENTS.md, skills and an MCP server. Tell your agent "set up my store" and it creates products, connects payments and runs a test purchase. Money and destructive actions always ask the owner first, and everything is logged.
• Works on any site.
• Next.js and Vite + React: React components.
• Plain HTML, WordPress, Webflow, Vue, Svelte, Astro, Angular: web components (13 KB gzipped) and a static admin.
• An admin that is a pleasure to use. Products with drag and drop photos and variants, inventory, orders with packing slips and refunds, abandoned cart recovery, customers, discounts and settings for every connection. Also:
• a command palette (⌘K) to search and act;
• an AI copilot on Home;
• built for store owners, not developers.
• Safe by default.
• Money stored as integers.
• RLS on every table, with tests.

Sellbase or build it yourself?

The usual way to add a store to a Next.js + Supabase app is to write it by hand: a products table, a cart, a Server Action for Stripe Checkout and a webhook route. It works for the first sale. Sellbase is that same stack (your Supabase and your Stripe) with the rest already built and tested.

Shortened. The full README is on GitHub.