Comparison · Revit MCP
AI in Revit: comparing your MCP options
Connecting an AI assistant to Revit over MCP is new, and there are three broad routes: Autodesk’s official preview, free open-source servers, and packaged commercial tools like HMK Pilot. Here’s an honest, use-case map — no hype.
| Approach | Apps | Read / write | Setup | Support | Cost |
|---|---|---|---|---|---|
| Autodesk Revit Public MCP Server (Tech Preview) | Revit 2027 | Read-focused (queries, counts, snapshots) | Official server + client config | Autodesk (preview) | Free (preview) |
| Open-source community servers | Revit (2023–2027, varies) | Read & write on the capable ones | DIY — clone, build, edit JSON | Community / self-support | Free (open-source) |
| HMK Pilot (HMK Tools) | Revit + AutoCAD + Civil 3D | Read & write — 190+ actions | One-click, packaged installer | Commercial + in-Revit chat | Paid (free 30-day trial) |
This is a fast-moving space (previews and open-source projects change often) — verify the latest before you commit.
Autodesk's official Revit MCP server
Autodesk shipped a Revit Public MCP Server as a Tech Preview for Revit 2027. It focuses on read access— querying the model, checking parameters, counts, and capturing view snapshots — as a trusted foundation before broader editing. If you’re on the newest Revit and mainly want to interrogate your model, it’s a solid, official first step. Its limits today are scope (read-focused), Revit-only, and newest-version-only.
Open-source community servers
A lively ecosystem of free, open-source Revit MCP servers exists on GitHub — some very capable, exposing 100+ tools with full read/write. They’re excellent if you’re technical and happy to clone a repo, build it, edit your MCP client’s JSON config, and maintain it yourself. The trade-off is exactly that: setup effort, varying maturity, and community-only support. They’re Revit-focused.
HMK Pilot
HMK Pilot takes the packaged route. One installer covers Revit, AutoCAD and Civil 3D — the only option here that spans all three — with 190+ read/write actions, one-click Claude Desktop / Claude Code setup (no JSON editing), a built-in in-Revit chat panel, and commercial support. Everything runs locally. You’re paying for convenience, breadth across apps, and a person to email — instead of building and maintaining it yourself.
Which should you choose?
- Just evaluating on Revit 2027, mostly reading the model: start with Autodesk’s official preview.
- Technical, want free, Revit-only, don’t mind setup: an open-source server is a great fit.
- Want it to just work across Revit, AutoCAD & Civil 3D with support: that’s HMK Pilot.
Frequently asked questions
Is Autodesk's official Revit MCP server enough?
If you're on Revit 2027 and mostly need to query and report on your model — find elements, check parameters, counts, snapshots — Autodesk's read-focused Tech Preview is a trusted starting point. If you need broad editing, older Revit versions, or AutoCAD and Civil 3D, you'll want something more capable.
Are the open-source Revit MCP servers any good?
Yes — several community projects are genuinely capable, some exposing 100+ tools with full read/write, and they're free and open-source. The trade-off is setup and maintenance: you clone, build, edit JSON config, and support yourself. Great if you're technical; more friction if you just want it to work.
What makes HMK Pilot different?
It's the only option here that spans Revit, AutoCAD and Civil 3D from one packaged install, with one-click Claude setup (no JSON editing), an in-Revit chat panel, and commercial support. You trade the free DIY route for 'it just works, everywhere, with a person to email.'
Do all of these work with Claude?
Yes. MCP is an open standard, so these servers work with Claude Desktop and Claude Code (and other MCP-compatible clients). HMK Pilot writes the connection config for you.
Want the one that works everywhere?
HMK Pilot across Revit, AutoCAD & Civil 3D — free for 30 days.
Comparison based on public information as of July 2026; previews and open-source projects evolve — please verify current capabilities. Revit, AutoCAD and Civil 3D are trademarks of Autodesk, Inc. HMK Tools is not affiliated with Autodesk.