list_extensions
Lists installed ComfyUI custom node extensions to verify available functionality for workflow automation.
Instructions
List loaded ComfyUI extensions.
Returns list of installed extension names (custom node packs). Use this to verify which custom nodes are available (e.g., fal.ai connector).
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Implementation Reference
- The handler function for the 'list_extensions' MCP tool. It lists ComfyUI extensions by querying the '/extensions' endpoint via comfy_get.@mcp.tool() def list_extensions(ctx: Context = None) -> list: """List loaded ComfyUI extensions. Returns list of installed extension names (custom node packs). Use this to verify which custom nodes are available (e.g., fal.ai connector). """ if ctx: ctx.info("Listing extensions...") try: return comfy_get("/extensions") except Exception as e: return [f"Error: {e}"]