# [Rebilder integrations: the three install paths](https://rebilder.com/integrations)

> The gateway is the same code in all three: your facts, rendered as markdown, at your own URLs. The only difference is who runs it: you, or us.

- **Description:** Three ways to install it, all running the same code: your facts, rendered as markdown, at your own URLs. The only difference is who runs it, you or us.
- **Shopify:** One-click install with nothing to configure.
  - Paid: we run and monitor the endpoint
- **WordPress:** Activate the plugin, and that is the entire setup.
  - Free forever, and silent until you connect it
- **Any stack:** One middleware, wired to your own source of truth.
  - Free forever: it runs in your stack
- **Organization:** Rebilder

## Shopify (Managed app)

Click Install and approve the permissions, and we keep your catalog synced and answer agents at your own storefront URLs, with no theme edit, no DNS change and no code.
- Products, collections, policies, pages and blog posts
- Prices and stock read from Shopify, never recalculated
- Draft and archived products are never served
- Uninstall removes everything; we keep no copy

## WordPress (Plugin, GPL-2.0-or-later)

Your posts, pages and WooCommerce products start answering agents at the URLs you already have. It reports nothing until you paste an API key into Settings, and with no key stored it opens no socket at all.
- Posts, pages and WooCommerce products
- Generates /llms.txt from your own content
- Sends Vary: Accept, so caches keep humans and agents apart
- Search engines always get your normal HTML

## Any stack (npm package)

For everything else: Next.js, Express, Fastify, Cloudflare Workers. Point it at the data you already have and it answers agents, or returns null and your normal pipeline runs untouched.
- Adapters for Next.js, Express, Fastify and Cloudflare Workers
- Products, catalogs, policies, documents and collections
- A source that throws is treated as no-match, never a 500
- UCP, ACP and MCP endpoints, version-pinned

## Free if you run it, paid if we run it.

The SDK and the WordPress plugin run on your own server: free forever, no metering, no page limits. The Shopify app is paid because we run the endpoint and keep your catalog synced.

Every Shopify store can also self-host the App Proxy adapter from the free SDK and pay us nothing. Most merchants just prefer not to run an endpoint themselves.

## Pro sizing

- Pro: up to 3 sites · every agent visit analysed · Answers Hub on 3
- Agency: up to 25 sites · every agent visit analysed · Answers Hub on 3

## Related

- [Quickstart](https://rebilder.com/docs/quickstart)
- [Pricing](https://rebilder.com/pricing)