blender-mcp

blender-mcp is a skill for Claude Code, Codex from metaspartan/cybara. It costs 22 tokens per session (500 once invoked), scanned A, original, MIT.

A workflow for creating, inspecting, rendering, and checking 3D scenes in Blender, a program for modelling, animation, and rendering.

In plain words
What is it for?
Reading scene information, making focused Blender changes, taking viewport screenshots, rendering files, and saving validated .blend projects.
Why use it?
It provides a controlled way to change scenes and visually verify geometry, materials, lighting, cameras, and render results.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Reading scene information, making focused Blender changes, taking viewport screenshots, rendering files, and saving validated .blend projects.

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Install with agentmods
npx agentmods add skills/metaspartan/cybara/blender-mcp
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add metaspartan/cybara --skill blender-mcp
Clone the repo
git clone --depth 1 https://github.com/metaspartan/cybara

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for blender-mcp

README.md
[![agentmods](https://agentmods.dev/badge/skills/metaspartan/cybara/blender-mcp/github.svg)](https://agentmods.dev/skills/metaspartan/cybara/blender-mcp)
Your own site
<a href="https://agentmods.dev/skills/metaspartan/cybara/blender-mcp"><img src="https://agentmods.dev/badge/skills/metaspartan/cybara/blender-mcp/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for blender-mcp

Your own site · 80×15
<a href="https://agentmods.dev/skills/metaspartan/cybara/blender-mcp"><img src="https://agentmods.dev/badge/skills/metaspartan/cybara/blender-mcp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 22 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 500 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00022 $0.00500
Opus 5 $0.00011 $0.00250
Sonnet 5 $0.00004 $0.00100
Haiku 4.5 $0.00002 $0.00050

Measured 10d ago against content hash 159000857de4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

blender-mcp scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/blender-workflows/skills/blender-mcp/SKILL.md · 48 lines

How it starts

The opening of the file, as written. The whole thing — 48 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Blender MCP

Use the configured Blender MCP server for Blender scene work instead of controlling the Blender interface indirectly.

Setup

  1. Install the Blender server from Settings > MCP Servers > Browse Registry.
  2. Open the server's Setup link and download addon.py.
  3. In Blender, open Preferences > Add-ons, choose Install, select addon.py, and enable the add-on.
  4. Open Blender's 3D View sidebar, select BlenderMCP, and connect the add-on.
  5. Start the Blender MCP server in Cybara.

Workflow

  1. Call get_scene_info before changing an existing scene.
  2. Call get_object_info for objects whose transforms, materials, modifiers, or hierarchy matter.
  3. Make focused changes with execute_blender_code rather than one large script.
  4. Call get_viewport_screenshot after meaningful visual changes.
  5. Save the .blend file before destructive operations and after validated milestones.
  6. Use absolute paths for renders and report every saved file path.

Validation

  • Confirm object names, transforms, materials, lights, cameras, and render settings from scene data.
  • Inspect a viewport screenshot after geometry, material, lighting, or camera changes.
  • Render a representative frame when the requested result depends on final render output.
  • Do not claim completion when only the script executed; verify the resulting scene.

Safety

  • Treat execute_blender_code as host code execution with access to Blender and local files.
  • Never execute untrusted scripts or downloaded code.
  • Confirm before deleting scene collections, overwriting project files, or changing external assets.
  • Keep optional online asset integrations disabled unless the user explicitly requests and configures them.

Troubleshooting

  • Connection refused: confirm Blender is open, the add-on is enabled, and BlenderMCP is connected.
  • Server start failure: confirm uvx is installed and visible to Cybara.
  • Timeout: split the operation into smaller calls and inspect the scene between calls.
  • Conflicting sessions: use one active Blender MCP server for the Blender instance.

Read the full file on GitHub · 48 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago First seen · 48 lines · 22 tokens per session scan A 159000857de4

Subscribe to this mod's changes

blender-mcp is a skill published in the GitHub repository metaspartan/cybara (28 stars, last pushed yesterday), licensed MIT. It adds 22 tokens to every session and 500 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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