three.ws Blender MCP Server

by nirholasio.github.nirholas/blender-mcpv0.5.0

Drive a local Blender headlessly: inspect, convert, render and script 3D files.

241Node.jsstdioofficial registry

context tax

pending

security

100/100

cold start

pending

freshness

Active4d ago

Our reading of three.ws Blender, from the data

three.ws Blender is a cloud platforms MCP server from nirholas, listed in the official MCP Registry.

We haven't measured its tool list yet, so its token cost is unknown.

Maintenance is active: the last public signal was 4 days ago (2026-10-17). For comparison, 62% of cloud platforms servers are active or maintained.

With 241 GitHub stars it ranks #31 of 713 cloud platforms servers we index.

It runs locally on your machine over stdio and needs one secret (THREE_WS_FORGE_PROVIDER_KEY); use a scoped, least-privilege key.

Install three.ws Blender MCP server

claude mcp add blender-nirholas -e THREE_WS_FORGE_PROVIDER_KEY='<three-ws-forge-provider-key>' -- npx -y @three-ws/blender-mcp

{
  "mcpServers": {
    "blender-nirholas": {
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/blender-mcp"
      ],
      "env": {
        "THREE_WS_FORGE_PROVIDER_KEY": "<three-ws-forge-provider-key>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "blender-nirholas": {
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/blender-mcp"
      ],
      "env": {
        "THREE_WS_FORGE_PROVIDER_KEY": "<three-ws-forge-provider-key>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "blender-nirholas": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/blender-mcp"
      ],
      "env": {
        "THREE_WS_FORGE_PROVIDER_KEY": "<three-ws-forge-provider-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "blender-nirholas": {
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/blender-mcp"
      ],
      "env": {
        "THREE_WS_FORGE_PROVIDER_KEY": "<three-ws-forge-provider-key>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
BLENDER_PATH	—	—	Absolute path to the Blender 3.0+ executable. Leave unset to discover it on PATH and at the platform's standard install locations.
BLENDER_MCP_TIMEOUT_MS	—	—	Ceiling for one Blender job in milliseconds. Renders and heavy conversions are the slow ones.
BLENDER_MCP_WORKDIR	—	—	Directory for outputs written when a tool is called without an explicit output path.
BLENDER_MCP_ALLOW_PYTHON	—	—	Set to 0 to withdraw blender_run_python, which executes caller-supplied Python inside Blender, from the advertised tool list.
BLENDER_MCP_INLINE_IMAGE_BYTES	—	—	Ceiling on inlined image bytes. Past this the image stays on disk and the response says where.
BLENDER_MCP_INLINE_IMAGE_PX	—	—	Longest edge of the render copy returned inline in a tool result. The full-resolution PNG is always written to disk.
BLENDER_MCP_MAX_CONCURRENCY	—	—	How many Blender processes may run at once. Further calls queue rather than compete for memory.
THREE_WS_BASE	—	—	Base URL of the three.ws deployment backing blender_forge_import.
THREE_WS_FORGE_TIMEOUT_MS	—	—	Ceiling for one text-to-3D generation in milliseconds.
THREE_WS_FORGE_PROVIDER_KEY	—	yes	Meshy/Tripo API key for the bring-your-own-key geometry lane. The default image lane is free and needs no key.

Security signals

100/100 — no known issues found as of 2026-10-19, from the checks below. This is not a guarantee of safety; review what a server can do before connecting it.

Deductions

No findings from the checks that ran.

Checks

✓Repository hygiene (archived, activity, license, security policy)
○Package metadata (install scripts, provenance) — pending
○Tool descriptions (prompt-injection and hidden-text heuristics) — pending
○Source scan (secrets, CVEs, risky code) by vectra-guard — pending

Scan it yourself before installing with vectra-guard, the open-source agent security CLI (made by NavyaAI, which also runs MCPSkillHub). Scoring rules

Freshness

Active — last maintenance signal 4d ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-10-17 · 4d ago · GitHub
Latest release
2026-10-11 · 10d ago · GitHub · forge-v0.5.0
Package published
no data · npm/PyPI
Registry entry updated
2026-09-30 · 21d ago · official registry · v0.5.0

How it compares in Cloud Platforms

Against the most-starred cloud platforms servers we index. Token cost is per model turn, measured from each server's live tool list.

Server	Stars	Tools	Tokens / turn	Freshness	Runs
three.ws Blender (this)	241	—	not measured	Active	local
Scrapling	88,517	—	not measured	Active	local
Corsairdev	15,309	—	not measured	Active	local
Plg Handler	14,805	—	not measured	Active	—
Bedrock KB Retrieval	9,793	—	not measured	Active	local
Cloudflare	4,391	—	not measured	Active	hosted

All cloud platforms MCP servers

FAQ

›How do I install the three.ws Blender MCP server in Claude Code?

Run: claude mcp add blender-nirholas -e THREE_WS_FORGE_PROVIDER_KEY='<three-ws-forge-provider-key>' -- npx -y @three-ws/blender-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does three.ws Blender require an API key?

Yes. It expects THREE_WS_FORGE_PROVIDER_KEY, of which 1 is a secret.

›Can I use three.ws Blender as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is three.ws Blender in the official MCP registry?

Yes, as io.github.nirholas/blender-mcp.

Sources and method

Official MCP Registry entry: updated 2026-09-30
GitHub repository: fetched 2026-10-19
Package registry (npm / PyPI): listed
Security signals, computed by us: 2026-10-19
Last checked against all sources: 2026-10-19

The description, packages and links come from the maintainer's own published metadata. Token cost, security signals, freshness and the reading above are MCPSkillHub's own measurements; see the methodology. Editorial standards are owned by Ramachandra Vikas Chamarthi, Founder & AI HPC Architect. Spot an error? Request a correction or claim the listing.

License: Apache-2.0
Last commit: 2026-10-17
npm: @three-ws/blender-mcp
Indexed from: registry

Repository Website npm

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