Atlas / MCP servers / holdmybeer-gg / blenderwright

blenderwrightBLOCK

Name: blenderwright
Author: holdmybeer-gg

mcp/holdmybeer-gg/blenderwright

MCP server by holdmybeer-gg · 3d · 3d modeling · ai · Audited 2026-10-07

MCP server for Blender. 191 tools for modelling, materials, rendering and more, driven by Claude, Cursor, Codex, Ollama, llama.cpp, or any MCP client.

Verdict

BLOCK

Grade

Trust score

69 /100

Exposed tools

186 77r · 94w · 15d

Transport

stdio

License

MIT

Stars

157

Overview

From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.

Formerly blend-ai. Same project, new name, nothing else changed.

The most intuitive and efficient MCP Server for Blender. Control Blender entirely through AI assistants like Claude: create 3D models, set up scenes, animate, render, and more, all through natural language.

blenderwright goes beyond tool exposure: it guides the LLM to produce professional 3D results through expert prompts, proven workflows, visual feedback, and mesh quality analysis.

A shuttle launch from two questions: "do you want to have a go at the space shuttle launch?" and then "could you animate the launch?" Claude Code (Fable 5.1) modelled the orbiter, tank, boosters and service tower, lit the plumes as emissive volumes and grew the exhaust cloud from metaballs. Keyframes lift the stack and tilt the camera after it, drivers stream the plumes and boil the smoke, and all 60 Cycles frames come back from a single render_animation call, all through blenderwright with no manual modelling:

Watch it with sound. Launch audio courtesy of NASA: STS-131, "Sound of Launch."

The still it grew from, modelled and rendered in under twenty minutes:

A two-storey Western saloon from a single sentence: "create a Western style 2-story saloon, the outside is more important than any inside detail." Claude Code (Fable 5.1) built the false front, plank siding, balcony, batwing doors and street dressing, then relit it for dusk, all through blenderwright, in about twenty minutes with no manual modelling:

![blenderwright saloon built from one prompt](https://raw.githubusercontent.com/

Read from source at commit 75b3cf5738d5OBSERVED · 2026-10-07

Connect

Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control.

claude-code

claude mcp add blenderwright -- uvx blenderwright

claude-desktop

{
  "mcpServers": {
    "blenderwright": {
      "command": "uvx",
      "args": [
        "blenderwright"
      ]
    }
  }
}

Exposed tools (186)

77 read · 94 write · 15 destructive. Blast radius: 15 tools can delete or overwrite — an agent that can be talked into calling a tool can be talked into calling this one.

Tool	Risk	Description
`add_annotation_layer`	write	Add a layer to an annotation.
`add_annotation_stroke`	write	Add a stroke to an annotation layer.
`add_cloth_sim`	write	Add a cloth physics simulation to an object.
`add_color_ramp_element`	write	Add a colour stop to a ColorRamp (ShaderNodeValToRGB) node.
`add_constraint`	write	Add a constraint to an object or bone.
`add_fluid_sim`	write	Add a fluid physics simulation to an object.
`add_geometry_node`	write	Add a node to a geometry nodes modifier
`add_image_sequence_strip`	write	Add rendered frames to the sequencer as one image strip.
`add_modifier`	write	Add a modifier to a mesh object (non-destructive workflow).
`add_multires_modifier`	write	Add a Multiresolution modifier for sculpting detail.
`add_particle_system`	write	Add a particle system to an object.
`add_rigid_body`	write	Add a rigid body physics simulation to an object.
`add_shader_node`	write	Add a shader node to a material
`add_sound_strip`	write	Add an audio file to the sequencer as a sound strip.
`add_texture_node`	write	Add an image texture node to a material and connect it to the Principled BSDF Base Color.
`analyze_mesh_quality`	read	Analyze mesh topology quality and return a structured defect report.
`analyze_sweep_path`	read	Check whether a path can carry a profile of a given radius, without building it.
`apply_modifier`	write	Apply a modifier to an object, making its effect permanent.
`apply_transforms`	write	Apply (freeze) transforms on an object, making current transforms the new basis.
`assign_material`	read	Assign a material to an object.
`bake_physics`	read	Bake a physics simulation for an object.
`bevel_edges`	read	Bevel all edges of a mesh.
`boolean_operation`	read	Perform a boolean operation between two objects using a modifier.
`booltool_auto_difference`	read	Auto boolean difference: subtract the target object from the main object.
`booltool_auto_intersect`	read	Auto boolean intersect: keep only the overlapping volume of two objects.
`booltool_auto_slice`	read	Auto boolean slice: split the main object using the target as a cutter.
`booltool_auto_union`	write	Auto boolean union: merge two mesh objects into one, destructively.
`bridge_edge_loops`	write	Bridge two edge loops to create connecting geometry.
`capture_viewport`	read	Render the viewport to a file or return as base64.
`check_3d_printability`	read	Check whether a mesh will 3D print, using Blender
`clear_animation`	destructive	Remove all animation data from an object.
`connect_geometry_nodes`	read	Connect two nodes in a geometry nodes modifier
`connect_shader_nodes`	read	Connect two shader nodes in a material
`convert_curve_to_mesh`	read	Convert a curve object to a mesh object.
`convert_object`	read	Convert an object to a different type.
`create_animation_path`	write	Make an object follow a path (curve) using a Follow Path constraint.
`create_annotation`	write	Create a new annotation data block.
`create_armature`	write	Create a new armature object.
`create_camera`	write	Create a new camera in the scene.
`create_collection`	write	Create a new collection, optionally nested under a parent collection.
`create_curve`	write	Create a new curve object.
`create_geometry_nodes`	write	Create a Geometry Nodes modifier on an object.
`create_light`	write	Create a new light in the scene.
`create_light_rig`	write	Create a pre-built lighting rig (multiple lights arranged for common setups).
`create_material`	write	Create an empty material: a bare Principled BSDF at default values.
`create_principled_material`	write	Create a plain-surface material with colour, metallic, roughness and more set in one call.
`create_procedural_material`	write	Create a patterned material (wood, marble, fire, veins) as a full node graph in one call.
`create_raster_texture`	write	Generate an image texture for patterns shader nodes cannot express.
`create_scene`	write	Create a new scene.
`create_threaded_shaft`	write	Create a cylindrical shaft with helical external threads.
`decimate_mesh`	read	Reduce a mesh
`delete_collection`	destructive	Delete a collection.
`delete_keyframe`	destructive	Remove a keyframe from an object property at a specific frame.
`delete_light`	destructive	Delete a light object from the scene.
`delete_material`	destructive	Delete a material by name.
`delete_object`	destructive	Delete an object from the scene by name.
`delete_particle_system`	destructive	Remove a particle system from an object.
`delete_scene`	destructive	Delete a scene by name.
`disconnect_shader_nodes`	read	Disconnect all links from a specific socket on a shader node.
`dissolve_edges`	read	Dissolve all edges, merging adjacent faces.
`dissolve_faces`	read	Dissolve all faces, merging them into surrounding geometry.
`dissolve_verts`	read	Dissolve all vertices, merging connected edges and faces.
`duplicate_material`	read	Duplicate a material with a new name.
`duplicate_object`	read	Duplicate an object.
`enable_dyntopo`	write	Enable dynamic topology (dyntopo) for adaptive sculpting resolution.
`enter_sculpt_mode`	read	Enter sculpt mode for a mesh object.
`execute_blender_code`	write	Execute Python code inside Blender
`exit_sculpt_mode`	read	Exit sculpt mode and return to object mode.
`export_file`	read	Export scene or selected objects to a 3D file.
`extrude_faces`	read	Extrude all faces of a mesh along their normals.
`fill_faces`	read	Fill selected edges with a face.
`flip_normals`	read	Flip the direction of all face normals on a mesh.
`focus_on_object`	read	Frame/focus the viewport on a specific object.
`get_color_ramp`	write	Read every stop on a ColorRamp node.
`get_node_tree`	read	Get the full node tree of a material (all nodes and links).
`get_object_info`	read	Get detailed information about an object.
`get_scene_info`	read	Get full scene information including object tree, hierarchy, counts, frame range, fps, and render engine.
`get_selection`	read	Report what is currently selected on a mesh.
`get_viewport_screenshot`	read	Capture a screenshot of the current Blender 3D viewport.
`grid_fill`	read	Fill a closed edge loop with a grid of quads.
`import_file`	write	Import a 3D file into Blender.
`insert_keyframe`	write	Insert a keyframe on an object property at a specific frame.
`inset_faces`	read	Inset all faces of a mesh, creating a border/frame around each face.
`join_objects`	read	Join multiple mesh objects into one (keeps all geometry as-is).
`knife_project`	read	Project a cutter object
`list_geometry_node_inputs`	read	List all available inputs on a geometry nodes modifier.
`list_keyframes`	read	List all keyframes on an object.
`list_lights`	read	List all light objects in the scene.
`list_materials`	read	List all materials in the current Blender file.
`list_objects`	read	List all objects in the scene, optionally filtered by type.
`list_procedural_patterns`	read	List every procedural pattern with a description of what it looks like.
`list_recent_files`	read	List recently opened files from Blender preferences.
`list_scenes`	read	List all scenes in the current Blender file.
`list_strips`	read	List every strip in the sequencer.
`loop_cut`	write	Add loop cuts to a mesh object.
`make_single_user`	read	Make an object
`make_thing`	read	Make a thing.
`mark_seam`	destructive	Mark or clear UV seams on all edges of a mesh.
`mark_sharp`	destructive	Mark or clear sharp edges on a mesh.
`merge_vertices`	write	Merge vertices by distance.
`move_to_collection`	write	Move objects to a collection, unlinking them from their current collections.
`open_file`	read	Open a .blend file.
`pack_uv_islands`	read	Pack UV islands to fit efficiently within the UV space.
`parent_mesh_to_armature`	read	Parent a mesh object to an armature with automatic weights or other methods.
`parent_objects`	write	Set parent-child relationship between two objects.
`point_camera_at`	read	Point a camera at an object or a specific location using a Track To constraint.
`quads_to_tris`	read	Convert all quad faces to triangles.
`recalculate_normals`	read	Recalculate face normals to be consistent (all pointing outward or inward).
`remesh`	write	Remesh an object to create a clean topology.
`remove_annotation_layer`	destructive	Remove a layer from an annotation.
`remove_color_ramp_element`	destructive	Remove a colour stop from a ColorRamp node.
`remove_modifier`	destructive	Remove a modifier from an object.
`remove_shader_node`	destructive	Remove a shader node from a material
`remove_strip`	destructive	Remove a strip from the sequencer by name.
`rename_object`	write	Rename an object.
`render_animation`	read	Render the animation sequence to image files.
`render_image`	read	Render the current scene to an image file.
`render_video`	read	Render the scene
`repair_mesh`	read	Repair the defects analyze_mesh_quality reports.
`save_file`	write	Save the current Blender file.
`select_all_geometry`	read	Select, deselect or invert all vertices, edges and faces on one mesh.
`select_by_axis`	read	Select the vertices, edges and faces on one side of a mesh along an axis.
`select_by_index`	read	Select specific vertices, edges or faces of one mesh by index.
`select_faces_by_sides`	read	Select faces of one mesh by how many sides they have.
`select_linked`	read	Grow the current mesh selection to everything connected to it.
`select_objects`	read	Select whole objects in the scene by name.
`select_similar`	read	Grow the current mesh selection to vertices, edges or faces that resemble it.
`separate_mesh`	read	Separate a mesh into parts.
`set_active_camera`	write	Set the active scene camera.
`set_annotation_stroke_property`	write	Set a property on an annotation stroke.
`set_bone_property`	write	Set a property on a bone in an armature.
`set_brush_property`	write	Set a property on the active sculpt brush.
`set_camera_from_view`	write	Match the active camera to the current 3D viewport view.
`set_camera_property`	write	Set a property on a camera.
`set_collection_visibility`	write	Set collection visibility in viewport and/or render.
`set_color_ramp_element`	write	Move or recolor an existing ColorRamp stop.
`set_color_ramp_interpolation`	write	Set how a ColorRamp blends between its stops.
`set_curve_property`	write	Set a property on a curve object.
`set_edge_crease`	write	Set edge crease value on all edges for subdivision surface control.
`set_eevee_light_path`	write	Set EEVEE light intensity controls (Blender 5.1+).
`set_frame`	write	Set the current frame in the timeline.
`set_frame_range`	write	Set the start and end frames of the scene timeline.
`set_geometry_node_input`	write	Set an input value on a geometry nodes modifier.
`set_handle_type`	write	Set the handle type for all control points of a curve.
`set_interpolation`	write	Set the interpolation type for keyframes on a property.
`set_light_property`	write	Set a property on a light object.
`set_location`	write	Set the position of an object.
`set_material_blend_mode`	write	Set the blend mode of a material (EEVEE).
`set_material_color`	write	Set the base color of a material
`set_material_property`	write	Set a property on a material
`set_modifier_property`	write	Set a property on a modifier (e.g., levels, count, offset, angle).
`set_object_visibility`	write	Set object visibility in viewport and/or render.
`set_origin`	write	Set the origin point of an object.
`set_output_format`	write	Set the render output format and optionally the output file path.
`set_particle_rendering`	write	Set rendering mode for an object
`set_particle_velocity`	write	Set velocity settings for an object
`set_physics_property`	write	Set a property on an existing physics simulation.
`set_pose`	write	Set the pose of a bone in an armature.
`set_render_engine`	write	Set the render engine.
`set_render_resolution`	write	Set the render resolution.
`set_render_samples`	write	Set the number of render samples.
`set_rotation`	write	Set the rotation of an object.
`set_scale`	write	Set the scale of an object.
`set_scene_property`	write	Set a scene property such as frame_start, frame_end, frame_current, fps, unit_system, or render_engine.
`set_sculpt_brush`	write	Set the active sculpt brush.
`set_sculpt_symmetry`	write	Set sculpt symmetry axes.
`set_shader_node_input`	write	Set the default value of an unconnected input socket on a shader node.
`set_shader_node_property`	write	Set a node-level property (not a socket) on a shader node.
`set_shadow_settings`	write	Configure shadow settings for a light.
`set_smooth_shading`	write	Set smooth or flat shading on an object.
`set_uv_projection`	write	Apply a projection-based UV mapping to a mesh object.
`set_viewport_overlay`	write	Toggle a viewport overlay setting.
`set_viewport_shading`	write	Set the viewport shading mode.
`set_world_background`	write	Set the world background to a solid color or HDRI environment map.
`shade_auto_smooth`	write	Apply angle-based auto-smooth shading to an object.
`smart_uv_project`	write	Apply Smart UV Project to a mesh object.
`smooth_curve`	read	Smooth the control points of a curve.
`snap_to_grid`	read	Snap an object
`subdivide_curve`	read	Subdivide a curve by adding control points between existing ones.
`subdivide_mesh`	read	Subdivide a mesh.
`suggest_extensions`	read	Suggest helpful Blender extensions for a planned task.
`sweep_profile_along_path`	read	Sweep a closed profile along a 3D path to make a solid tube, pipe, cable or rope.
`switch_curve_direction`	read	Switch the direction of a curve
`toggle_cyclic`	read	Toggle the cyclic (closed loop) state of a curve.
`tris_to_quads`	read	Convert adjacent triangle pairs to quad faces where possible.
`uv_unwrap`	read	Unwrap a mesh object

Trust audit

BLOCKgrade D · trust 69/100 Do not install this without reading the findings. The audit found something that could harm you or your machine.

Layer	What it checks	Result
L0	Provenance & inventory	WARN
L1	Static analysis of the code	FAIL
L2	Instruction surface (what it tells the agent)	PASS
L3	Class-specific surface	WARN
L4	Behavioural (sandbox)	SKIPPED

What the source does

Filesystem: declared (7 observation(s))
Network: none-observed
Shell: declared (2 observation(s))
Dependencies: pinned
Secrets in source: none-found

Findings (16)

HIGHCode injection · code.eval_exec · CWE-78, CWE-94, CWE-95

addon/handlers/code_exec.py:86

exec(code, {"__builtins__": SAFE_BUILTINS})

Why it matters. evaluates text as code

Fix. remove; use a parser or a dispatch table

MEDIUMInventory / provenance · inv.binary · CWE-1104

blend-ai-v1.0.0.zip

blend-ai-v1.0.0.zip

Why it matters. a compiled or binary member cannot be reviewed from source

Fix. ship source, or explain the binary in the README

MEDIUMCode injection · code.dynamic_import · CWE-78, CWE-94, CWE-95

src/blenderwright/enum_hints.py:92

modules[module_name] = _enum_pairs(importlib.import_module(module_name))

MEDIUMFilesystem / path · mcp.destructive_tools · CWE-22, CWE-59

clear_animation, delete_collection, delete_keyframe, delete_light, delete_material, delete_object, delete_particle_system, delete_scene, mark_seam, mark_sharp, remove_annotation_layer, remove_color_ra

Why it matters. 15 tool(s) can delete or overwrite

Fix. prefer a read-only mode or scoped tokens; the page states the blast radius

LOWInventory / provenance · inv.hidden_file · CWE-1104

docs/.nojekyll

.nojekyll

Why it matters. hidden member outside the usual dotfiles

Fix. review its purpose

LOWCode injection · code.dynamic_import · CWE-78, CWE-94, CWE-95

tests/test_long_names.py:64

mod = importlib.import_module(f"blenderwright.tools.{module}")

LOWCode injection · code.dynamic_import · CWE-78, CWE-94, CWE-95

tests/test_round_wasters.py:53

src = inspect.getsource(importlib.import_module(module))

LOWCode injection · code.dynamic_import · CWE-78, CWE-94, CWE-95

tests/test_round_wasters.py:89

mod = importlib.import_module(module)

LOWCode injection · code.dynamic_import · CWE-78, CWE-94, CWE-95

tests/test_tools/test_numeric_text_values.py:66

module = importlib.import_module(tool.fn.__module__)

LOWFilesystem / path · fs.traversal · CWE-22, CWE-59

tests/test_tools/test_print3d.py:28

check_3d_printability("../../etc/passwd")

LOWObfuscation / stealth · obf.decode_call · CWE-506, CWE-94

tests/test_addon/test_handlers/test_camera_handler.py:153

decoded = base64.b64decode(result["base64"])