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Presenton can connect to your ComfyUI server to generate images for presentations. Instead of using cloud services like DALL-E or Pexels, you can use your own local setup with any model (FLUX, Stable Diffusion, SDXL, etc.).

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🛠️ Step 1: Start ComfyUI with Network Access

Launch ComfyUI with the --listen flag to allow external connections: 
python main.py --listen 0.0.0.0

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🎨 Step 2: Create and Test Your Workflow

Open ComfyUI in your browser and create a text-to-image workflow. Test it first — make sure it generates images successfully before proceeding.

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✏️ Step 3: Rename Your Prompt Node

This is the most important step. Presenton needs to know which node to inject the prompt into.
  1. Find your prompt node (the node where you enter your text prompt)
  2. Right-click on it → Title
  3. Rename it to exactly “Input Prompt”
⚠️ Why is this required? When Presenton generates an image, it needs to replace the prompt text in your workflow. It searches for a node with the title “Input Prompt” to know exactly where to inject the prompt. Without this, Presenton cannot determine which text field to modify.

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📦 Step 4: Export Workflow in API Format

  1. Click the gear icon (⚙️) in ComfyUI
  2. Enable “Enable Dev mode Options”
  3. Click on ComfyUI Logo at top left → File
  4. Click “Export (API)” — this downloads a JSON file
📝 Note: You must use “Export (API)”, not the regular “Save” button. The API format contains the node structure that Presenton needs.

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⚙️ Step 5: Configure Presenton

  1. Go to Settings in Presenton
  2. Select “ComfyUI” as image provider
  3. Enter your ComfyUI Server URL
  4. Paste the workflow JSON content
  5. Save

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Server URL

Enter the URL where your ComfyUI server is running:
SetupURL FormatExample
Local ComfyUIhttp://<YOUR_IP>:<PORT>http://192.168.1.100:8188
Deployed ComfyUIYour deployment URLhttps://comfyui.example.com
💡 The default ComfyUI port is 8188. To find your IP address, run hostname -I on Linux/Mac or ipconfig on Windows.

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Node Requirement

For Presenton to work with your workflow:
RequirementValue
Node Title”Input Prompt” (case-insensitive)

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How It Works

  1. Presenton parses your workflow JSON
  2. It searches for a node where _meta.title equals “Input Prompt”
  3. It replaces the text input with the generated prompt
  4. The modified workflow is sent to ComfyUI for image generation

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What the JSON Looks Like

Your exported workflow should have a node like this: 
"6": {
  "inputs": {
    "text": "your placeholder text",
    "clip": ["4", 1]
  },
  "class_type": "CLIPTextEncode",
  "_meta": {
    "title": "Input Prompt"
  }
}
Presenton will replace "your placeholder text" with the actual prompt.

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✅ Checklist

Before using ComfyUI with Presenton, verify:
  • ComfyUI is running with --listen 0.0.0.0
  • Your workflow generates images successfully when tested manually
  • Your prompt node is renamed to “Input Prompt”
  • You exported using “Export (API)”
  • You can access ComfyUI from the URL you’re using