MCP server · beta

Build in Minecraft with your AI assistant

You make the design calls. Your AI assistant does the WorldEdit work. Herobrain runs the script and shows you the result in 3D before anything touches your world.

Request beta access See the gallery
Kowloon Walled City (paramétrica), a build made with Herobrain Kowloon Walled City (paramétrica)

How it works

  1. 01

    Connect

    Add the Herobrain MCP server to your AI assistant as a custom connector: paste one URL and sign in with Google or GitHub.

    Connection steps →
  2. 02

    Describe and decide

    Say what you want and make the design decisions: palette, gradient, floor plan, proportions. Your assistant writes the WorldEdit script, Herobrain runs it in a sandbox and sends back renders and cross-sections, so you can both see what to fix.

  3. 03

    Get the build

    You get the renders, a .schem file and a gallery page with a 3D viewer you can link to. If you run a server, an optional plugin can paste the build into your world.

See what it builds

All builds →

Recent builds from the gallery. Each page has the renders, a 3D viewer and the .schem download.

Kowloon Walled City (paramétrica) Parametric · 9 params
140×64×108 262,439 blocks opus-5-5

Kowloon Walled City (paramétrica)

by Binary Karma
262,439 blocks Oct 25, 2026
[test] checkParams sweep Parametric · 7 params
40×40×40 1,987 blocks opus-5-5

[test] checkParams sweep

by Jorge Barbero
1,987 blocks Oct 24, 2026
Salón de la Montaña Enana (paramétrico) Parametric · 10 params
181×128×181 1,000,205 blocks opus-5-5

Salón de la Montaña Enana (paramétrico)

by Binary Karma
1,000,205 blocks Oct 19, 2026
Fortaleza Estrella (paramétrica) Parametric · 9 params
211×72×211 331,748 blocks opus-5-5

Fortaleza Estrella (paramétrica)

by Binary Karma
331,748 blocks Oct 19, 2026
Archipiélago Flotante (paramétrico) Parametric · 9 params
225×128×225 370,270 blocks opus-5-5

Archipiélago Flotante (paramétrico)

by Binary Karma
370,270 blocks Oct 19, 2026
Puente Monumental (paramétrico) Parametric · 9 params
210×52×64 54,077 blocks opus-5-5

Puente Monumental (paramétrico)

by Binary Karma
54,077 blocks Oct 19, 2026
Torre Arcana (paramétrica) Parametric · 11 params
57×104×57 11,127 blocks opus-5-5

Torre Arcana (paramétrica)

by Binary Karma
11,127 blocks Oct 19, 2026
Gran escala #5 — Terrazas de arroz en la montaña Parametric · 8 params
250×110×250 113,952 blocks opus-5-5

Gran escala #5 — Terrazas de arroz en la montaña

by Binary Karma
113,952 blocks Oct 19, 2026

What you need

  • An AI assistant with MCP connector support. Any assistant or agent that speaks MCP works: Claude, ChatGPT, Cursor and others. You add Herobrain once, with a single URL.
  • Beta access. Accounts are added to an allowlist. You sign in with Google or GitHub.
  • Something that reads .schem files. Herobrain exports .schem only, the schematic format WorldEdit loads.
  • Optional: a Paper or Bukkit server. The server plugin that pastes builds into a live world supports Paper/Bukkit only.
Request beta access How to connect

Questions

Is Herobrain an official Minecraft product?

No. Herobrain is an independent tool. It is not an official Minecraft product and is not approved by or associated with Mojang or Microsoft.

Does it design the build without me?

It is not meant to. A one-line prompt gives a rough result. Builds get better when you choose the materials, the gradient and the layout and then correct what you see in the renders. Quality is uneven, and some builds need several rounds.

Which AI assistants does it work with?

Any AI assistant or agent that supports MCP: Claude, ChatGPT, Cursor and others. Herobrain is a standard remote MCP server, so you add it as a connector with one URL.

How do I use the .schem file?

Put it in the schematics folder of your WorldEdit installation, load it with //schem load and place it with //paste. Any tool that reads WorldEdit .schem files can open it too.

How do I get access?

Herobrain is in beta and access is by allowlist. Use the request form to ask for it; the connection steps are on the Connect page.

Are my prompts and scripts public?

No. A gallery page shows the renders, the 3D viewer and the .schem download. Prompts and scripts stay private to the author.