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generate-youtube-thumbnail

Generate a YouTube thumbnail with bold title text, gradient background, and a static image cutout.

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iterationlayer/skills

Works withYouTube n8n

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Files included (1)

SKILL.md11.9 KB

SKILL.md (original)

Review the instructions the agent will receive before you install.

Generate YouTube Thumbnail

Content creators and video platforms use this recipe to generate eye-catching thumbnails at scale. Define a bold gradient canvas, overlay a subject photo with background removal, and add large title text — ready for YouTube uploads, social previews, or content management systems.

APIs Used

Image Generation (1 credits/request)

Prerequisites

You need an Iteration Layer API key. Get one at platform.iterationlayer.com during the 7-day trial.

For full integration guidance (SDKs, auth, MCP, error handling), see the Iteration Layer Integration Guide.

Implementation

curl -X POST https://api.iterationlayer.com/image-generation/v1/render \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "dimensions": {
      "width_in_px": 1280,
      "height_in_px": 720
    },
    "layers": [
      {
        "index": 0,
        "type": "gradient",
        "gradient_type": "linear",
        "angle_in_degrees": 135.0,
        "colors": [
          {
            "hex_color": "#FF6B00",
            "position": 0.0
          },
          {
            "hex_color": "#D90429",
            "position": 100.0
          }
        ],
        "position": {
          "x_in_px": 0.0,
          "y_in_px": 0.0
        },
        "dimensions": {
          "width_in_px": 1280,
          "height_in_px": 720
        }
      },
      {
        "index": 1,
        "type": "image",
        "file": {
          "type": "base64",
          "name": "subject-photo.png",
          "base64": "<base64-encoded-subject-photo>"
        },
        "should_remove_background": true,
        "position": {
          "x_in_px": 700.0,
          "y_in_px": 60.0
        }
      },
      {
        "index": 2,
        "type": "text",
        "text": "I Built an App in 24 Hours",
        "font_name": "Montserrat",
        "font_size_in_px": 64,
        "text_color": "#FFFFFF",
        "font_weight": "bold",
        "position": {
          "x_in_px": 50.0,
          "y_in_px": 120.0
        },
        "dimensions": {
          "width_in_px": 620,
          "height_in_px": 280
        }
      },
      {
        "index": 3,
        "type": "text",
        "text": "Dev With Alex",
        "font_name": "Inter",
        "font_size_in_px": 28,
        "text_color": "#FFF3E0",
        "position": {
          "x_in_px": 50.0,
          "y_in_px": 560.0
        },
        "dimensions": {
          "width_in_px": 400,
          "height_in_px": 50
        }
      }
    ],
    "output_format": "png"
  }'

import { IterationLayer } from "iterationlayer";
const client = new IterationLayer({ apiKey: "YOUR_API_KEY" });

const result = await client.generateImage({
  dimensions: {
    width_in_px: 1280,
    height_in_px: 720,
  },
  output_format: "png",
  layers: [
    {
      index: 0,
      type: "gradient",
      gradient_type: "linear",
      angle_in_degrees: 135.0,
      colors: [
        {
          hex_color: "#FF6B00",
          position: 0.0,
        },
        {
          hex_color: "#D90429",
          position: 100.0,
        },
      ],
      position: {
        x_in_px: 0,
        y_in_px: 0,
      },
      dimensions: {
        width_in_px: 1280,
        height_in_px: 720,
      },
    },
    {
      index: 1,
      type: "image",
      file: {
        type: "base64",
        name: "subject-photo.png",
        base64: "<base64-encoded-subject-photo>",
      },
      should_remove_background: true,
      position: {
        x_in_px: 700,
        y_in_px: 60,
      },
    },
    {
      index: 2,
      type: "text",
      text: "I Built an App in 24 Hours",
      font_name: "Montserrat",
      font_size_in_px: 64,
      text_color: "#FFFFFF",
      font_weight: "bold",
      position: {
        x_in_px: 50,
        y_in_px: 120,
      },
      dimensions: {
        width_in_px: 620,
        height_in_px: 280,
      },
    },
    {
      index: 3,
      type: "text",
      text: "Dev With Alex",
      font_name: "Inter",
      font_size_in_px: 28,
      text_color: "#FFF3E0",
      position: {
        x_in_px: 50,
        y_in_px: 560,
      },
      dimensions: {
        width_in_px: 400,
        height_in_px: 50,
      },
    },
  ],
});

from iterationlayer import IterationLayer
client = IterationLayer(api_key="YOUR_API_KEY")

result = client.generate_image(
    dimensions={
        "width_in_px": 1280,
        "height_in_px": 720,
    },
    output_format="png",
    layers=[
        {
            "index": 0,
            "type": "gradient",
            "gradient_type": "linear",
            "angle_in_degrees": 135.0,
            "colors": [
                {
                    "hex_color": "#FF6B00",
                    "position": 0.0,
                },
                {
                    "hex_color": "#D90429",
                    "position": 100.0,
                },
            ],
            "position": {
                "x_in_px": 0,
                "y_in_px": 0,
            },
            "dimensions": {
                "width_in_px": 1280,
                "height_in_px": 720,
            },
        },
        {
            "index": 1,
            "type": "image",
            "file": {
                "type": "base64",
                "name": "subject-photo.png",
                "base64": "<base64-encoded-subject-photo>",
            },
            "should_remove_background": True,
            "position": {
                "x_in_px": 700,
                "y_in_px": 60,
            },
        },
        {
            "index": 2,
            "type": "text",
            "text": "I Built an App in 24 Hours",
            "font_name": "Montserrat",
            "font_size_in_px": 64,
            "text_color": "#FFFFFF",
            "font_weight": "bold",
            "position": {
                "x_in_px": 50,
                "y_in_px": 120,
            },
            "dimensions": {
                "width_in_px": 620,
                "height_in_px": 280,
            },
        },
        {
            "index": 3,
            "type": "text",
            "text": "Dev With Alex",
            "font_name": "Inter",
            "font_size_in_px": 28,
            "text_color": "#FFF3E0",
            "position": {
                "x_in_px": 50,
                "y_in_px": 560,
            },
            "dimensions": {
                "width_in_px": 400,
                "height_in_px": 50,
            },
        },
    ],
)

package main

import il "github.com/iterationlayer/sdk-go"

func main() {
	client := il.NewClient("YOUR_API_KEY")

	result, err := client.GenerateImage(il.GenerateImageRequest{
		Dimensions: il.Dimensions{
			WidthInPx:  1280,
			HeightInPx: 720,
		},
		OutputFormat: "png",
		Layers: []il.Layer{
			il.NewGradientLayer(0, "linear", []il.GradientColor{
				{
      HexColor: "#FF6B00",
      Position: 0.0,
    },
				{
      HexColor: "#D90429",
      Position: 100.0,
    },
			}, il.Position{
     XInPx: 0,
     YInPx: 0,
   }, il.Dimensions{
     WidthInPx: 1280,
     HeightInPx: 720,
   }),
			il.NewStaticImageLayer(1, il.FileInput{Buffer: "<base64-encoded-subject-photo>"},
				il.Position{
      XInPx: 700,
      YInPx: 60,
    },
				il.Dimensions{}),
			il.NewTextLayer(2, "I Built an App in 24 Hours", "Montserrat", 64, "#FFFFFF",
				il.Position{
      XInPx: 50,
      YInPx: 120,
    },
				il.Dimensions{
      WidthInPx: 620,
      HeightInPx: 280,
    }),
			il.NewTextLayer(3, "Dev With Alex", "Inter", 28, "#FFF3E0",
				il.Position{
      XInPx: 50,
      YInPx: 560,
    },
				il.Dimensions{
      WidthInPx: 400,
      HeightInPx: 50,
    }),
		},
	})
	if err != nil {
		panic(err)
	}
}

{
  "name": "Generate YouTube Thumbnail",
  "nodes": [
    {
      "parameters": {
        "content": "## Generate YouTube Thumbnail\n\nContent creators and video platforms use this recipe to generate eye-catching thumbnails at scale. Define a bold gradient canvas, overlay a subject photo with background removal, and add large title text \u2014 ready for YouTube uploads, social previews, or content management systems.\n\n**Note:** This workflow uses the Iteration Layer community node (`n8n-nodes-iterationlayer`). Install it via Settings > Community Nodes on self-hosted n8n, or add it directly on n8n Cloud with Verified Community Nodes enabled.",
        "height_in_px": 280,
        "width_in_px": 500,
        "color": 2
      },
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        200,
        40
      ],
      "id": "a91b7d97-7812-4174-a020-b99f92380391",
      "name": "Overview"
    },
    {
      "parameters": {
        "content": "### Step 1: Generate Image\nResource: **Image Generation**\n\nConfigure the Image Generation parameters below, then connect your credentials.",
        "height_in_px": 160,
        "width_in_px": 300,
        "color": 6
      },
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        475,
        100
      ],
      "id": "b1400574-f9f8-4914-84d8-80aaa80aa203",
      "name": "Step 1 Note"
    },
    {
      "parameters": {},
      "type": "n8n-nodes-base.manualTrigger",
      "typeVersion": 1,
      "position": [
        250,
        300
      ],
      "id": "a3b4c5d6-dddd-4000-8000-000000000001",
      "name": "Manual Trigger"
    },
    {
      "parameters": {
        "resource": "imageGeneration",
        "widthInPx": 1280,
        "heightInPx": 720,
        "outputFormat": "png",
        "layersJson": "[{\"index\":0,\"type\":\"gradient\",\"gradient_type\":\"linear\",\"angle_in_degrees\":135.0,\"colors\":[{\"hex_color\":\"#FF6B00\",\"position\":0.0},{\"hex_color\":\"#D90429\",\"position\":100.0}],\"position\":{\"x\":0.0,\"y\":0.0},\"dimensions\":{\"width\":1280,\"height\":720}},{\"index\":1,\"type\":\"image\",\"file\":{\"type\":\"base64\",\"name\":\"subject-photo.png\",\"base64\":\"<base64-encoded-subject-photo>\"},\"should_remove_background\":true,\"position\":{\"x\":700.0,\"y\":60.0}},{\"index\":2,\"type\":\"text\",\"text\":\"I Built an App in 24 Hours\",\"font_name\":\"Montserrat\",\"font_size_in_px\":64,\"text_color\":\"#FFFFFF\",\"font_weight\":\"bold\",\"position\":{\"x\":50.0,\"y\":120.0},\"dimensions\":{\"width\":620,\"height\":280}},{\"index\":3,\"type\":\"text\",\"text\":\"Dev With Alex\",\"font_name\":\"Inter\",\"font_size_in_px\":28,\"text_color\":\"#FFF3E0\",\"position\":{\"x\":50.0,\"y\":560.0},\"dimensions\":{\"width\":400,\"height\":50}}]",
        "fontsJson": "[]"
      },
      "type": "n8n-nodes-iterationlayer.iterationLayer",
      "typeVersion": 1,
      "position": [
        500,
        300
      ],
      "id": "a3b4c5d6-dddd-4000-8000-000000000002",
      "name": "Generate Image",
      "credentials": {
        "iterationLayerApi": {
          "id": "1",
          "name": "Iteration Layer API"
        }
      }
    }
  ],
  "connections": {
    "Manual Trigger": {
      "main": [
        [
          {
            "node": "Generate Image",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "executionOrder": "v1"
  }
}

Generate a YouTube thumbnail at 1280x720 pixels. Use the generate_image tool with these layers:

1. Background: gradient layer with [bold colors]
2. Subject cutout: image layer with [subject image URL] positioned to one side
3. Title text: text layer with [video title] in large bold text with dark outline
4. Accent elements: solid-color shapes for visual emphasis

Response

{
  "success": true,
  "data": {
    "buffer": "iVBORw0KGgoAAAANSUhEUgAA...",
    "mime_type": "image/png"
  }
}

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Install

Install with a command

npx skills add https://github.com/iterationlayer/skills --skill generate-youtube-thumbnail

Paste it into your terminal and run it (requires Node.js). You can choose which agents to install it for, such as Claude Code or Codex.

Ask your agent

Please install the following Agent Skill.
https://github.com/iterationlayer/skills/tree/main/skills/generate-youtube-thumbnail

First review SKILL.md and the bundled files and confirm there is nothing suspicious (such as sending data externally or reading credentials). Then place it in ~/.claude/skills/generate-youtube-thumbnail/ for Claude Code, or ~/.agents/skills/generate-youtube-thumbnail/ for Codex.

Send this text to Claude Code or Codex as is. It checks the contents before installing.

View source on GitHub

Repository: iterationlayer/skills
Stars: 4
Forks: 0
Category: Media
License: MIT
Original language: English
Last updated: Jun 9, 2026

A skill is a set of instructions and scripts for an agent. cccskills does not guarantee that skills are safe. Review the contents before you install.

Files included (1)

SKILL.md (original)

Generate YouTube Thumbnail

APIs Used

Prerequisites

Implementation

Response

Links

Reviews

Comments

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