Auto-generate Instagram carousels with GPT-Image-1 & AI captions from Google Sheets

🧰 Instagram Carousel Scheduler

A tool to automatically publish Instagram carousels using a Post Description, Instructions, and the number of images you want to post — all directly from a Google Sheet. At the end of each post, the next row is marked as Pending, allowing fully automated posting, so you can prepare months of content in advance. ---

✅ Requirements

📱 Instagram Business Account Required to publish content via the Meta Graph API. Make sure your IG account is connected to a Facebook Page.

🔐 Facebook Developers Token Required to use the Graph API and publish on Instagram. 👉 It's highly recommended to create a System User so your token never expires.

☁️ Cloudinary Upload Preset Used to upload generated images and retrieve public URLs. 👉 Use an unsigned upload preset (no API key required).

🧠 OpenAI API Key Used for: Generating a caption from the post description. Creating image prompts. Generating images using gpt-image-1. ⚠️ You might need to verify your business with OpenAI to access this model.

📊 Google Sheets App with OAuth credentials To fetch your content and instructions from the spreadsheet. ---