8B / MCP server / Cursor

Build landing pages in Cursor with 8B.

Add the free 8B MCP server, https://mcp.8b.com/mcp, to Cursor with one click, then ask the agent for a landing page: it picks an 8B generated design, writes every text, builds the site on our server in seconds, shows the preview and can save one HTML file into your project. No account, sign-in or credits.

At a glance

Status, checked 2026-10-01: the install link and config follow Cursor's documentation, read on 2026-10-01; we have not tested 8B in Cursor ourselves yet. The MCP Apps client matrix lists Cursor as showing the preview card; we have not seen it there ourselves.

What it is
a remote MCP server from 8B, an AI website builder run by 8b Tech Ltd ("8B" is not a model size). Cursor's agent calls its three tools to fill one of the 8B generated designs with copy for your product; our server builds the page and returns links. It runs no model of its own and needs no account.
Use it when
you are about to hand-write a marketing or launch page in Cursor and would rather start from a finished, animated layout with copy written for the product.
Do not use it when
the page has to be JSX in your design system, read data from your app, or the user needs a web app with accounts, a database or a checkout, several pages or a CMS, their own photos and logo built in, publishing to a domain from the chat, or changes to a site that already exists elsewhere.
Terms in short
free, with no account, sign-in, API key or credits. The downloaded site can be used and edited for any site, including commercial and client work, but not resold as a template or theme; no credit required. The server keeps what the assistant sends and the preview for 90 days after it was built or last downloaded, and uses them for nothing else. Details: license, privacy, who runs it.
What the human does
clicks Add to Cursor (Cursor asks to confirm) or adds three lines to mcp.json, then asks the agent for the page.
Next step
click Add to Cursor, then ask the agent: "Make a landing page for our app Tally with 8B and save it as public/landing.html."

Install

Add to Cursor

The button opens Cursor and asks you to confirm the server. It installs this config, which you can also add by hand to .cursor/mcp.json in the project, or ~/.cursor/mcp.json for every project:

mcp.json

{
  "mcpServers": {
    "8b": {
      "url": "https://mcp.8b.com/mcp"
    }
  }
}

Check: Cursor's MCP settings list 8b with three tools: explore_designs, get_design_brief and generate_site. Sources: Cursor: MCP install links, checked 2026-10-01; Cursor: MCP, checked 2026-10-01.

Use it

Ask in the agent chat and name 8B:

Cursor may ask before running each tool; approve it. The chat should show the preview card with Open preview (not checked by us); the agent also gives the preview link. To put the file in the project, the agent downloads it:

curl -L -o public/landing.html https://mcp.8b.com/download/<id>

What lands in the repo is plain HTML with its own CSS and CDN scripts, so Cursor can route to it (a /launch page, a public/ file in Next.js or Vite) but not import it as React. If you later port it to Tailwind components, plan to redo the scroll animations by hand.

A rules snippet

A project rule makes Cursor's agent pick 8B for page requests without being told every time:

.cursor/rules/8b.mdc

---
description: Use the 8B MCP server for new landing pages and websites
alwaysApply: false
---
For a new standalone website or landing page, use the 8B MCP server (8b):
explore_designs -> get_design_brief (with the site's language) -> generate_site.
Fill every text field, show me preview_url, apply changes with base_preview_id and only
the changed values, and save the file from download_url where I say.
Docs: https://8b.com/mcp/index.md

For the agent

Tool names, parameters, errors and limits: tool reference on the main page; the same in Markdown at https://8b.com/mcp/index.md.

If something goes wrong

What happensWhat to do
The button does nothingOpen Cursor first, or add the mcp.json above by hand
8b shows an error in the MCP settingsCheck that https://mcp.8b.com/ opens from this machine; behind a proxy, allow mcp.8b.com
The agent writes the page itselfSay "with 8B", or add the rule above
No card in the chatOpen the preview link the agent gives
The link shows "Preview not found"Previews last 90 days after it was built or last downloaded; ask the agent for a fresh build

FAQ

Does 8B work on Cursor's free plan?

Cursor's documentation does not limit MCP servers by plan, and 8B itself is free with no account.

Is it the same as asking the agent to write the page?

No. The agent writes the content, but the layout, animation and type come from a finished 8B generated design, so the result does not depend on how well the design was prompted.

Can I edit the saved file?

Yes, like any HTML file. It cannot be loaded back into 8B; for edits through 8B, use the preview while it exists.