Blender AI MCP Studio

Blender AI MCP Studio is an AI assistant and built-in Model Context Protocol (MCP) server for Blender that turns plain-language briefs into inspected, approved and reversible 3D scene operations — with a visual chat workspace, multi-agent teams and your choice of AI models.

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Picture the demo: you type "Build a night product stage with a pedestal and three lights" — the assistant inspects the scene, places the pedestal, aims the camera, sets the lights, applies a matte blue material and hands the result to a reviewer agent. Every step is visible in the viewport, every change is reversible, and the scene is export-ready when you are.

Why

Artists burn hours on mechanical scene work — placing props, tuning materials, re-exporting variations — while juggling chat tabs that cannot see the 3D scene and scripts that edit blind. Blender AI MCP Studio puts the assistant inside Blender: it inspects your scene first, then builds, edits and exports through a validated tool set you approve step by step. You iterate faster, skip the repetitive clicks, and keep creative control of every change.

Without / With

Without	With
Hours of manual clicks for layouts, materials and exports	One plain-language brief becomes a finished, checked scene
Chat tabs that cannot see your 3D scene	An assistant that inspects objects, transforms and materials before acting
Scripts that change the scene without review	Every operation is shown, approved and undoable
One model struggling with every kind of task	A team of manager, workers and reviewers, each fit for its role
Hunting assets across many websites	Poly Haven, Sketchfab and Poly Pizza searched from one chat

Quick Start

Download mcp-for-blender-pro.zip from Releases.
In Blender, open Edit → Preferences → Get Extensions → menu → Install from Disk.
Select the ZIP, enable mcp-for-blender-pro, then open 3D Viewport → N → MCP Pro.
Choose a provider, add your connection details and select a model.
Send a message in Blender or click Open Studio Window.

Features

Inspect the scene before acting — objects, transforms, materials and modifiers give the assistant real context.
Build and edit through conversation — primitives, lights, cameras, parenting, duplication and materials arrive as approved steps.
Run one assistant or a full team — manager, workers and reviewers with individual instructions and models.
Connect your choice of AI — OpenAI, Anthropic Claude, Google Gemini, OpenRouter, OpenCode Zen, local Ollama or custom endpoints.
Search and import assets in chat — Poly Haven, Sketchfab and Poly Pizza results with import approval.
Verify results visually — viewport screenshots let vision-capable models check their own work.
Automate and export — bpy API lookups, node type descriptions, validated Python execution and scene export.

How it works

Blender AI MCP Studio runs inside Blender as one extension with three cooperating parts: the AI Studio sidebar (chat, scene outline, viewport snapshots, approvals and the task board), the connection manager (saved providers, keys and models, kept separate for work and personal use) and the built-in MCP server (an authenticated local endpoint for external clients). When you send a brief, the assistant inspects the scene through 21+ tools, plans ordered steps, executes them one by one — each visible and reversible — and for larger jobs splits the work across a manager, workers and reviewers before exporting the result. External clients such as OpenCode drive the same tool set through the MCP endpoint.

Usage

Product stage in one message. Ask: "Build a product-display scene with a pedestal, a camera and three lights; give the pedestal a matte blue material." Approve the proposed steps and export the scene when the reviewer signs off.
Batch arrangement. Ask: "Duplicate the selected object into a neatly spaced row of five and show the viewport." The assistant duplicates, aligns and returns a snapshot for a quick check.
Structured agent chain. Hand a bigger brief to a team: the manager splits it into assignments with acceptance criteria, workers execute the scene operations, reviewers approve or return findings, and the task board tracks every attempt.

Configuration

Setting	What it controls	Default
Provider	AI connection: OpenAI, Anthropic Claude, Google Gemini, OpenRouter, OpenCode Zen, Ollama or a custom API	Set on first run
Model	Tool-calling model used for chat, vision and agents	Chosen from the provider catalog
Team chain	Roles for manager, workers and reviewers, each with its own model	Single assistant
MCP endpoint	Authenticated local Streamable HTTP server for external clients	Active with Studio
Interface language	English, German, French, Spanish or Chinese	English
Asset services	Keys for Poly Haven, Sketchfab and Poly Pizza	Empty
Undo checkpoints	Named undo steps before mutating operations	Enabled

Troubleshooting / FAQ

The add-on does not appear after installation. Confirm you are running Blender 4.2 or later on Windows x64, reinstall via Edit → Preferences → Get Extensions → menu → Install from Disk and enable Blender AI MCP Studio.

The assistant does not answer. Check the saved connection details and key, select a model with tool-calling support, and keep Blender open while Studio or an external client is in use.

An external MCP client cannot connect. Start Studio first, confirm the client supports authenticated Streamable HTTP MCP, and copy the endpoint exactly as shown in the sidebar.

A scene operation was blocked. Python tool validation rejects disallowed operations before they run; adjust the request or approve the step — validation is a guardrail, not a security sandbox.

Where do my credentials live? In your user settings on your own machine; chat history lasts for the current session.

Contributing

Spot a bug or miss a tool? Open an issue with your Blender version, Windows build and a short reproduction. Pull requests that add scene tools, interface languages or provider support are welcome. If Blender AI MCP Studio saves you clicks, leave a ⭐ star — it helps other artists find the project.

Keywords

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License

Released under the MIT license.

Blender-AI-MCP-Studio