ComfyUI MCP Skills
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| COMFYUI_MCP_DIR | Yes | Path to the project directory containing config.json and data folder. | |
| COMFYUI_MCP_HOST | No | Bind address for the HTTP server (default: 0.0.0.0). | |
| COMFYUI_MCP_TOKENS | No | JSON string mapping token strings to allowed scopes, used for Streamable HTTP authentication. | |
| COMFYUI_MCP_PUBLIC_URL | No | Public URL of the MCP endpoint (e.g., https://mcp.example.com/mcp). | |
| COMFYUI_MCP_FETCH_HOSTS | No | Comma-separated whitelist of allowed hosts for asset fetching. | |
| COMFYUI_MCP_ENABLE_ADMIN | No | Set to '1' to enable the admin process for workflow management. | |
| COMFYUI_MCP_UPLOAD_ROOTS | No | Semicolon-separated list of additional directories allowed for local file uploads. | |
| COMFYUI_MCP_ALLOWED_HOSTS | No | Comma-separated list of allowed Host header values for HTTP server. | |
| COMFYUI_MCP_ALLOWED_ORIGINS | No | Comma-separated list of allowed Origin header values for HTTP server. | |
| COMFYUI_MCP_MAX_UPLOAD_BYTES | No | Maximum upload size in bytes for media uploads. |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": false
} |
| resources | {
"subscribe": false,
"listChanged": false
} |
| experimental | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| comfyui.asset.uploadC | Upload an authorized local image, mask, audio, or video file to ComfyUI and return an asset handle. |
| comfyui.job.getA | Get durable ComfyUI job status and output resource links. |
| comfyui.job.cancelA | Remove this principal's queued ComfyUI job; running jobs are safely rejected because ComfyUI interrupt is global. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |