website/docs/user-guide/skills/optional/creative/creative-blender-mcp.md
Control Blender directly from Hermes via socket connection to the blender-mcp addon. Create 3D objects, materials, animations, and run arbitrary Blender Python (bpy) code. Use when user wants to create or modify anything in Blender.
| Source | Optional — install with hermes skills install official/creative/blender-mcp |
| Path | optional-skills/creative/blender-mcp |
| Version | 1.0.0 |
| Author | alireza78a |
| Platforms | linux, macos, windows |
:::info The following is the complete skill definition that Hermes loads when this skill is triggered. This is what the agent sees as instructions when the skill is active. :::
Control a running Blender instance from Hermes via socket on TCP port 9876.
curl -sL https://raw.githubusercontent.com/ahujasid/blender-mcp/main/addon.py -o ~/Desktop/blender_mcp_addon.py
In Blender: Edit > Preferences > Add-ons > Install > select blender_mcp_addon.py Enable "Interface: Blender MCP"
Press N in Blender viewport to open sidebar. Find "BlenderMCP" tab and click "Start Server".
nc -z -w2 localhost 9876 && echo "OPEN" || echo "CLOSED"
Plain UTF-8 JSON over TCP -- no length prefix.
Send: {"type": "<command>", "params": {<kwargs>}} Receive: {"status": "success", "result": <value>} {"status": "error", "message": "<reason>"}
| type | params | description |
|---|---|---|
| execute_code | code (str) | Run arbitrary bpy Python code |
| get_scene_info | (none) | List all objects in scene |
| get_object_info | object_name (str) | Details on a specific object |
| get_viewport_screenshot | (none) | Screenshot of current viewport |
Use this inside execute_code tool calls:
import socket, json
def blender_exec(code: str, host="localhost", port=9876, timeout=15):
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((host, port))
s.settimeout(timeout)
payload = json.dumps({"type": "execute_code", "params": {"code": code}})
s.sendall(payload.encode("utf-8"))
buf = b""
while True:
try:
chunk = s.recv(4096)
if not chunk:
break
buf += chunk
try:
json.loads(buf.decode("utf-8"))
break
except json.JSONDecodeError:
continue
except socket.timeout:
break
s.close()
return json.loads(buf.decode("utf-8"))
bpy.ops.object.select_all(action='SELECT')
bpy.ops.object.delete()
bpy.ops.mesh.primitive_uv_sphere_add(radius=1, location=(0, 0, 0))
bpy.ops.mesh.primitive_cube_add(size=2, location=(3, 0, 0))
bpy.ops.mesh.primitive_cylinder_add(radius=0.5, depth=2, location=(-3, 0, 0))
mat = bpy.data.materials.new(name="MyMat")
mat.use_nodes = True
bsdf = mat.node_tree.nodes.get("Principled BSDF")
bsdf.inputs["Base Color"].default_value = (R, G, B, 1.0)
bsdf.inputs["Roughness"].default_value = 0.3
bsdf.inputs["Metallic"].default_value = 0.0
obj.data.materials.append(mat)
obj.location = (0, 0, 0)
obj.keyframe_insert(data_path="location", frame=1)
obj.location = (0, 0, 3)
obj.keyframe_insert(data_path="location", frame=60)
bpy.context.scene.render.filepath = "/tmp/render.png"
bpy.context.scene.render.engine = 'CYCLES'
bpy.ops.render.render(write_still=True)