ComfyUI MCP Skills
by ShiroEirin
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. |
Capabilities
Features and capabilities supported by this server
| 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 | |
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