Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Mcp Blender

Mcp Blender, an MCP server listed in the PlugVet directory.

Compatibility: Not stated.

Grade B

Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

PERMISSION_DELETE_FILES NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV SECRETS_ENV_READ OBFUSCATION_FILE_OVER_READ_CAP

Why this grade

  • PERMISSION_DELETE_FILES Low

    Contains a call that can delete files.

    addon/blender_mcp_addon/external/cache.py, line 237 shutil.rmtree(cached_dir)

  • NETWORK_NO_FIXED_HOST Low

    Makes a network call whose host is not written as a fixed address.

    addon/blender_mcp_addon/external/polyhaven.py, line 37 with urllib.request.urlopen(req, timeout=timeout) as response:

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    .gitignore, line 80 .env

  • SECRETS_ENV_READ Note

    Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.

    addon/blender_mcp_addon/external/ai_models.py, line 49 api_key = os.environ.get("RODIN_API_KEY")

  • OBFUSCATION_FILE_OVER_READ_CAP Note

    A file was over the read cap and was not fully read.

    src/mcp_blender/server.py, line 1 """MCP server for Blender - main entry point."""

Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.

Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.

What was checked

Plain notes from the hygiene checks.

  • Permissions

    Concern

    can delete files.

    PERMISSION_DELETE_FILES

    addon/blender_mcp_addon/external/cache.py, line 237

    shutil.rmtree(cached_dir)

    addon/blender_mcp_addon/external/cache.py, line 345

    shutil.rmtree(path)

    addon/blender_mcp_addon/external/ai_backends/triposr.py, line 132

    result = subprocess.run(

    Show more

    addon/blender_mcp_addon/external/ai_backends/triposr.py, line 347

    result = subprocess.run(

    addon/blender_mcp_addon/msfs/livery/export.py, line 221

    result = subprocess.run(

  • Install and update

    Pass

    No install-time script found, and dependencies are pinned or absent.

  • Network

    Concern

    can reach a host that is not written as a fixed address.

    NETWORK_NO_FIXED_HOST

    addon/blender_mcp_addon/external/polyhaven.py, line 37

    with urllib.request.urlopen(req, timeout=timeout) as response:

    addon/blender_mcp_addon/external/polyhaven.py, line 54

    with urllib.request.urlopen(req, timeout=timeout) as response:

    addon/blender_mcp_addon/external/ai_backends/comfyui.py, line 176

    with urllib.request.urlopen(req, timeout=5) as response:

    Show more

    addon/blender_mcp_addon/external/ai_backends/comfyui.py, line 196

    with urllib.request.urlopen(req, timeout=5) as response:

    addon/blender_mcp_addon/external/ai_backends/comfyui.py, line 240

    with urllib.request.urlopen(req, timeout=30) as response:

    addon/blender_mcp_addon/external/ai_backends/comfyui.py, line 321

    with urllib.request.urlopen(req, timeout=30) as response:

    addon/blender_mcp_addon/external/ai_backends/comfyui.py, line 331

    with urllib.request.urlopen(req, timeout=10) as response:

    addon/blender_mcp_addon/external/ai_backends/meshy.py, line 104

    with urllib.request.urlopen(req, timeout=timeout) as response:

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    addon/blender_mcp_addon/external/ai_models.py, line 49

    api_key = os.environ.get("RODIN_API_KEY")

    addon/blender_mcp_addon/external/ai_backends/meshy.py, line 60

    api_key = os.environ.get("MESHY_API_KEY")

    .gitignore, line 80

    .env

    Show more

    addon/blender_mcp_addon/external/ai_backends/rodin.py, line 69

    api_key = os.environ.get("RODIN_API_KEY")

    addon/blender_mcp_addon/external/ai_backends/tripo_ai.py, line 51

    return os.environ.get("TRIPO_API_KEY")

    addon/blender_mcp_addon/msfs/livery/transfer.py, line 540

    "stability": os.environ.get("STABILITY_API_KEY"),

    addon/blender_mcp_addon/msfs/livery/transfer.py, line 541

    "openai": os.environ.get("OPENAI_API_KEY"),

    addon/blender_mcp_addon/msfs/livery/transfer.py, line 542

    "replicate": os.environ.get("REPLICATE_API_TOKEN"),

    .gitignore, line 79

    # Environment and secrets

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Note

    a file was over the read cap and was not fully read.

    OBFUSCATION_FILE_OVER_READ_CAP

    src/mcp_blender/server.py, line 1

    """MCP server for Blender - main entry point."""

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

Get the full report on this tool, £49

Note

Hygiene check of commit efbafb6a9e01. can delete files. can reach a host that is not written as a fixed address. reads a credential or environment file. a file was over the read cap and was not fully read.

Date and source

Date checked:

View source

github.com

Commit graded: efbafb6a9e019a03a5887ff943462715e0f386dc

This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.

Read how this letter is chosen