YouTube Thumbnail Generator with OpenAI & Apify

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              "name": "startUrls",
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              "value": "=[\n     \"{{ $json['Youtube URL'] }}\"   \n    ]"
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        "content": "### 🔧 Step-by-Step Setup\n\n#### 1️⃣ Form & Parameter Assignment\n- **Node**: `Form Trigger`\n- **How it works**: Collects the YouTube URL via a form embedded in your n8n instance.\n- **API Required**: None\n- **Additional Node**: `Set`\n  - Converts the single input URL into the format Apify expects: an array of `{ url }` objects."
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        "content": "#### 2️⃣ Apify Actors for Data Extraction\n- **Node**: `HTTP Request (Query Metadata)`\n  - **URL**: `https://api.apify.com/v2/acts/streamers~youtube-scraper/run-sync-get-dataset-items`\n  - **Payload**: JSON with `startUrls` array and filtering options like `maxResults`, `isHD`, etc.\n- **Node**: `HTTP Request (Query Transcript)`\n  - **URL**: `https://api.apify.com/v2/acts/topaz_sharingan~Youtube-Transcript-Scraper/run-sync-get-dataset-items`\n  - **Payload**: `startUrls` array\n- **API Required**: Apify API Token (via HTTP Query Auth)\n- **Notes**: You must have an Apify account and actor credits to use these actors."
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        "content": "#### 3️⃣ OpenAI GPT-4o & DALL·E Generation\n- **Node**: `OpenAI (Prompt Creator)`\n  - Uses the transcript and title to generate a DALL·E-compatible visual prompt.\n- **Node**: `OpenAI (Image Generator)`\n  - Resource: `image`\n  - Model: DALL·E (default with GPT-4o key)\n- **API Required**: OpenAI API Key\n- **Prompt Strategy**:\n```markdown\nCreate a minimalist YouTube thumbnail in an illustration style. The background should be a very simple, uncluttered setting with soft, ambient lighting that subtly reflects the essence of the transcript. The overall mood should be professional and non-cluttered, ensuring that the text overlay stands out without distraction. Do not include any text.\n```"
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        "height": 660,
        "content": "#### 4️⃣ Resize for YouTube Format\n- **Node**: `Edit Image`\n- **Purpose**: Resize final image to 1280x720 with `ignoreAspectRatio` set to true.\n- **No API required** — this runs entirely in n8n.\n\n---"
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        "content": "### 👤 Need more help? \n**Robert Breen**  \nAutomation Consultant | AI Workflow Designer | n8n Expert  \n📧 [[email protected]](mailto:[email protected])  \n🔗 [LinkedIn](https://www.linkedin.com/in/robert-breen-29429625/)"
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        "formTitle": "Get URL",
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            {
              "fieldLabel": "Youtube URL",
              "placeholder": "https://www.youtube.com/watch?v=lW5xEm7iSXk",
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        "jsonBody": "={\n    \"downloadSubtitles\": false,\n    \"hasCC\": false,\n    \"hasLocation\": false,\n    \"hasSubtitles\": false,\n    \"is360\": false,\n    \"is3D\": false,\n    \"is4K\": false,\n    \"isBought\": false,\n    \"isHD\": false,\n    \"isHDR\": false,\n    \"isLive\": false,\n    \"isVR180\": false,\n    \"maxResultStreams\": 0,\n    \"maxResults\": 1,\n    \"maxResultsShorts\": 0,\n    \"preferAutoGeneratedSubtitles\": false,\n    \"saveSubsToKVS\": false,\n    \"startUrls\": [\n        {\n            \"url\": \"{{ $('Get URL').item.json['Youtube URL'] }}\" ,\n            \"method\": \"GET\"\n        }\n    ]\n} ",
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          "size": "1792x1024",
          "returnImageUrls": false
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        "resource": "image"
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          "format": "jpeg",
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