Update, September 2026: I rewrote this post. A lot changed in Blender + AI this year: Blender now has its own official MCP server, Anthropic shipped a Claude connector for Blender, and 3D-Agent became a desktop app with its own agent. The old version compared tools that no longer look like that, so here is the current picture.
If you're exploring AI inside Blender, you'll run into two different ideas that sound similar: Blender MCP and 3D-Agent. They solve the same problem in different ways, and picking the right one depends on how you like to work.
What is Blender MCP?
Blender MCP is the Model Context Protocol applied to Blender. An MCP server exposes Blender's operations as tools, and an AI client (Claude, Cursor, Codex and others) calls those tools to build or change your scene. The AI client does the thinking; the MCP server gives it hands inside Blender.
Today there are three main ways to get it:
- Blender Lab MCP Server, the official one from the Blender project (blender.org/lab/mcp-server). It needs Blender 5.1 or later, an MCP add-on and an AI client of your choice.
- Claude's Blender connector, from Anthropic's Claude for Creative Work (April 2026). It's the Claude Desktop route to Blender's own MCP server.
- The open-source blender-mcp on GitHub (now also called "MCP for Blender"). Free and community-maintained, and it works with many MCP clients.
With any of these you bring your own AI client and subscription, and you set up the connection yourself.
What is 3D-Agent?
3D-Agent is not an MCP server. It's a desktop app for macOS and Windows with its own AI agent, and it works on your open scene in Blender 4.2 or later. You describe what you want in plain language, and the agent plans the steps and runs real Blender operations, checking each result in the viewport before moving on.
It installs and updates its own Blender extension, so there's no add-on to install by hand, no MCP server to configure and no API key. Paid plans include prompts.
Check the clean wireframes!
A real example: a spiral staircase
Same prompt: "Create a spiral staircase with metal railings". Here is what 3D-Agent built:
It took about 8 minutes, and I exported it straight to FBX for Unity. The thing I care about most is the topology: clean geometry is what decides whether you can actually keep working on the output.
Blender MCP vs 3D-Agent
| Blender MCP (official server, Claude connector, or open source) | 3D-Agent | |
|---|---|---|
| What it is | An MCP server your AI client talks to | A desktop app with its own agent |
| Who does the 3D work | Your AI client (Claude, Cursor, Codex...) | 3D-Agent's agent |
| Setup | Install the server or add-on, connect an MCP client | Install the app; it sets up its Blender extension |
| Blender version | 5.1+ for the official server | 4.2 or later |
| AI subscription / API key | Your own | Not needed; prompts are included |
| Cost | Free server; you pay for your AI client | From $19/month |
| Roblox Studio | No | Yes: inspect projects, edit scripts, insert assets, run playtests |
I keep a more detailed, sourced version of this table on 3d-agent.com/blender-mcp.
Which one should you choose?
- Choose Blender MCP if you already use Claude, Cursor or Codex, want to pick your own model, like wiring things up yourself, or want something free and open source.
- Choose 3D-Agent if you want an agent that works on your open scene with no MCP setup and no API keys, on macOS or Windows, with the prompts included in a monthly plan.
And you don't have to pick just one. On the Ultra plan, 3D-Agent runs its own local MCP server, so Claude Code, Claude Desktop, Cursor or Codex can hand whole Blender tasks to 3D-Agent. The setup is in the external agents docs.
Try it
- Download 3D-Agent for macOS or Windows (Blender 4.2 or later)
- Plans: Basic $19/month (100 prompts), Pro $29 (200), Ultra $89 (800). There's no free tier.
- Come say hi on Discord. I read everything there.
Questions?
Drop a comment if you have questions about choosing between the two, specific use cases or how it works under the hood. I read every comment.
Top comments (5)
This was a fantastic breakdown! I was nodding the whole time like “yep, been there… spent 3 hours debugging only to get floating stairs and a cube pretending to be a chair.” 😂
Seriously though, I love how you framed Blender-MCP as the pioneer it truly was while showing how 3D-Agent takes the concept from “cool tech demo” to “I can actually deliver this to a client.” Clean topology + fast setup = the real end-game for AI modeling.
It’s exciting to see the space evolve from proof-of-concept experiments to real production-grade tools. The future of AI-assisted 3D isn’t coming!! it’s already here, and it just learned how to export to Unity without exploding my API credits. 🔥
Can’t wait to see where this goes next!
Hey Aaron, thank you for the kind words. You should def check 3D-Agent, it is capable to do great things!
Blender-mcp is an amazing idea but the real work I can make with 3D-Agent
Keep up the good work, both are amazing ai tools with their own pros. Love to see it!
Thank you!!!