ComfyUI

FluffBuzz ships a bundled comfy plugin for workflow-driven ComfyUI runs. The plugin is entirely workflow-driven, so FluffBuzz does not try to map generic size, aspectRatio, resolution, durationSeconds, or TTS-style controls onto your graph.

Property	Detail
Provider	`comfy`
Models	`comfy/workflow`
Shared surfaces	`image_generate`, `video_generate`, `music_generate`
Auth	None for local ComfyUI; `COMFY_API_KEY` or `COMFY_CLOUD_API_KEY` for Comfy Cloud
API	ComfyUI `/prompt` / `/history` / `/view` and Comfy Cloud `/api/*`

What it supports

Image generation from a workflow JSON
Image editing with 1 uploaded reference image
Video generation from a workflow JSON
Video generation with 1 uploaded reference image
Music or audio generation through the shared music_generate tool
Output download from a configured node or all matching output nodes

Getting started

Choose between running ComfyUI on your own machine or using Comfy Cloud.

Local
Comfy Cloud

Best for: running your own ComfyUI instance on your machine or LAN.

Start ComfyUI locally

Make sure your local ComfyUI instance is running (defaults to http://127.0.0.1:8188).

Prepare your workflow JSON

Export or create a ComfyUI workflow JSON file. Note the node IDs for the prompt input node and the output node you want FluffBuzz to read from.

Configure the provider

Set mode: "local" and point at your workflow file. Here is a minimal image example:

{
  models: {
    providers: {
      comfy: {
        mode: "local",
        baseUrl: "http://127.0.0.1:8188",
        image: {
          workflowPath: "./workflows/flux-api.json",
          promptNodeId: "6",
          outputNodeId: "9",
        },
      },
    },
  },
}

Set the default model

Point FluffBuzz at the comfy/workflow model for the capability you configured:

{
  agents: {
    defaults: {
      imageGenerationModel: {
        primary: "comfy/workflow",
      },
    },
  },
}

Verify

fluffbuzz models list --provider comfy

Best for: running workflows on Comfy Cloud without managing local GPU resources.

Get an API key

Set the API key

Provide your key through one of these methods:

# Environment variable (preferred)
export COMFY_API_KEY="your-key"

# Alternative environment variable
export COMFY_CLOUD_API_KEY="your-key"

# Or inline in config
fluffbuzz config set models.providers.comfy.apiKey "your-key"

Prepare your workflow JSON

Export or create a ComfyUI workflow JSON file. Note the node IDs for the prompt input node and the output node.

Configure the provider

Set mode: "cloud" and point at your workflow file:

{
  models: {
    providers: {
      comfy: {
        mode: "cloud",
        image: {
          workflowPath: "./workflows/flux-api.json",
          promptNodeId: "6",
          outputNodeId: "9",
        },
      },
    },
  },
}

Cloud mode defaults baseUrl to https://cloud.comfy.org. You only need to set baseUrl if you use a custom cloud endpoint.

Set the default model

{
  agents: {
    defaults: {
      imageGenerationModel: {
        primary: "comfy/workflow",
      },
    },
  },
}

Verify

fluffbuzz models list --provider comfy

Configuration

Comfy supports shared top-level connection settings plus per-capability workflow sections (image, video, music):

{
  models: {
    providers: {
      comfy: {
        mode: "local",
        baseUrl: "http://127.0.0.1:8188",
        image: {
          workflowPath: "./workflows/flux-api.json",
          promptNodeId: "6",
          outputNodeId: "9",
        },
        video: {
          workflowPath: "./workflows/video-api.json",
          promptNodeId: "12",
          outputNodeId: "21",
        },
        music: {
          workflowPath: "./workflows/music-api.json",
          promptNodeId: "3",
          outputNodeId: "18",
        },
      },
    },
  },
}

Shared keys

Key	Type	Description
`mode`	`"local"` or `"cloud"`	Connection mode.
`baseUrl`	string	Defaults to `http://127.0.0.1:8188` for local or `https://cloud.comfy.org` for cloud.
`apiKey`	string	Optional inline key, alternative to `COMFY_API_KEY` / `COMFY_CLOUD_API_KEY` env vars.
`allowPrivateNetwork`	boolean	Allow a private/LAN `baseUrl` in cloud mode.

Per-capability keys

These keys apply inside the image, video, or music sections:

Key	Required	Default	Description
`workflow` or `workflowPath`	Yes	—	Path to the ComfyUI workflow JSON file.
`promptNodeId`	Yes	—	Node ID that receives the text prompt.
`promptInputName`	No	`"text"`	Input name on the prompt node.
`outputNodeId`	No	—	Node ID to read output from. If omitted, all matching output nodes are used.
`pollIntervalMs`	No	—	Polling interval in milliseconds for job completion.
`timeoutMs`	No	—	Timeout in milliseconds for the workflow run.

The image and video sections also support:

Key	Required	Default	Description
`inputImageNodeId`	Yes (when passing a reference image)	—	Node ID that receives the uploaded reference image.
`inputImageInputName`	No	`"image"`	Input name on the image node.

Workflow details

Image workflows

Set the default image model to comfy/workflow:

{
  agents: {
    defaults: {
      imageGenerationModel: {
        primary: "comfy/workflow",
      },
    },
  },
}

Reference-image editing example:To enable image editing with an uploaded reference image, add inputImageNodeId to your image config:

{
  models: {
    providers: {
      comfy: {
        image: {
          workflowPath: "./workflows/edit-api.json",
          promptNodeId: "6",
          inputImageNodeId: "7",
          inputImageInputName: "image",
          outputNodeId: "9",
        },
      },
    },
  },
}

Video workflows

Set the default video model to comfy/workflow:

{
  agents: {
    defaults: {
      videoGenerationModel: {
        primary: "comfy/workflow",
      },
    },
  },
}

Comfy video workflows support text-to-video and image-to-video through the configured graph.

FluffBuzz does not pass input videos into Comfy workflows. Only text prompts and single reference images are supported as inputs.

Music workflows

The bundled plugin registers a music-generation provider for workflow-defined audio or music outputs, surfaced through the shared music_generate tool:

/tool music_generate prompt="Warm ambient synth loop with soft tape texture"

Use the music config section to point at your audio workflow JSON and output node.

Backward compatibility

Existing top-level image config (without the nested image section) still works:

{
  models: {
    providers: {
      comfy: {
        workflowPath: "./workflows/flux-api.json",
        promptNodeId: "6",
        outputNodeId: "9",
      },
    },
  },
}

FluffBuzz treats that legacy shape as the image workflow config. You do not need to migrate immediately, but the nested image / video / music sections are recommended for new setups.

If you only use image generation, the legacy flat config and the new nested image section are functionally equivalent.

Live tests

Opt-in live coverage exists for the bundled plugin:

FLUFFBUZZ_LIVE_TEST=1 COMFY_LIVE_TEST=1 pnpm test:live -- extensions/comfy/comfy.live.test.ts

The live test skips individual image, video, or music cases unless the matching Comfy workflow section is configured.

Image Generation

Image generation tool configuration and usage.

Video Generation

Video generation tool configuration and usage.

Music Generation

Music and audio generation tool setup.

Provider Directory

Overview of all providers and model refs.

Configuration reference

Full config reference including agent defaults.

Overview

Concepts and configuration

Providers

What it supports

Getting started

Configuration

Shared keys

Per-capability keys

Workflow details

Image Generation

Video Generation

Music Generation

Provider Directory

Configuration reference

Overview

Concepts and configuration

Providers

​What it supports

​Getting started

​Configuration

​Shared keys

​Per-capability keys

​Workflow details

​Related

Image Generation

Video Generation

Music Generation

Provider Directory

Configuration reference

What it supports

Getting started

Configuration

Shared keys

Per-capability keys

Workflow details

Related