get_polyhaven_categories
Retrieve available categories for Poly Haven assets to organize and filter 3D resources in Blender. Supports HDRI, textures, and models.
Instructions
Get a list of categories for a specific asset type on Polyhaven.
Parameters:
asset_type: The type of asset to get categories for (hdris, textures, models, all)
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| asset_type | No | hdris |
Implementation Reference
- src/blender_mcp/server.py:289-319 (handler)The handler function for the 'get_polyhaven_categories' tool. It checks if PolyHaven is enabled, sends the command to the Blender addon via socket, formats the categories by sorting them by count, and returns a formatted string list.
@mcp.tool() def get_polyhaven_categories(ctx: Context, asset_type: str = "hdris") -> str: """ Get a list of categories for a specific asset type on Polyhaven. Parameters: - asset_type: The type of asset to get categories for (hdris, textures, models, all) """ try: blender = get_blender_connection() if not _polyhaven_enabled: return "PolyHaven integration is disabled. Select it in the sidebar in BlenderMCP, then run it again." result = blender.send_command("get_polyhaven_categories", {"asset_type": asset_type}) if "error" in result: return f"Error: {result['error']}" # Format the categories in a more readable way categories = result["categories"] formatted_output = f"Categories for {asset_type}:\n\n" # Sort categories by count (descending) sorted_categories = sorted(categories.items(), key=lambda x: x[1], reverse=True) for category, count in sorted_categories: formatted_output += f"- {category}: {count} assets\n" return formatted_output except Exception as e: logger.error(f"Error getting Polyhaven categories: {str(e)}") return f"Error getting Polyhaven categories: {str(e)}" - src/blender_mcp/server.py:289-289 (registration)The @mcp.tool() decorator registers the get_polyhaven_categories function as an MCP tool.
@mcp.tool() - src/blender_mcp/server.py:290-296 (schema)The function signature and docstring define the input schema (asset_type: str, default 'hdris') and output as str.
def get_polyhaven_categories(ctx: Context, asset_type: str = "hdris") -> str: """ Get a list of categories for a specific asset type on Polyhaven. Parameters: - asset_type: The type of asset to get categories for (hdris, textures, models, all) """