Auto-generate and post Instagram reels with Veo3, OpenAI, and Blotato

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2/3/2026

📱 Veo3 Instagram Agent – Create & Auto-Post Reels with Blotato

Description: This no-code workflow automates the full pipeline of generating and publishing Instagram Reels using Veo3 (via Wavespeed API). From prompt to post, it handles content ideation, short-form video generation, caption writing, logging, and even automatic publishing to Instagram via Blotato.

Perfect for creators, brands, and marketers who want to scale content creation without needing to shoot or edit videos manually.

🔗 Watch the full step-by-step tutorial on how to build this workflow: https://youtu.be/s-KzxeKWmIA?si=6x8WKMeiyWodZWVq

Google Sheet Template: https://docs.google.com/spreadsheets/d/1bA-PQTrvekC1Rti-XumGANgjIwLjvcFCqoIxVCYsq2E/edit?usp=sharing

🚀 What This Workflow Does: Trigger via Chat or Telegram Start with a simple message like: "Make a reel for a luxury minimalist candle brand using calm aesthetics."

AI Video Prompt Generation Uses OpenAI to craft a visually rich, platform-optimized video description prompt.

🎞️ Video Creation with Veo3 API Submits your prompt to Veo3 to create a short video (9:16 ratio, 8 seconds) with motion, tone, and trend styles.

✍️ Caption Writing An AI agent writes an engaging and playful caption based on the video content.

📄 Google Sheets Logging Stores prompt, video URL, caption, and status in a GSheet to keep track of all generated assets.

📤 Auto-Publish to Instagram Posts the video + caption directly to Instagram using Blotato’s social media publishing API.

🔌 Tools & Integrations Used: OpenAI for prompt & caption generation

Wavespeed API (Veo3) for video generation

Google Sheets for tracking

Blotato for scheduling & publishing content

n8n for orchestration and automation logic

💡 Use Cases: Content calendar automation for small teams

Trend-based ad creation and testing

UGC-style reel generation for e-commerce

Rapid ideation & creative experimentation

n8n Workflow: Basic Data Processing and Conditional Logic

This n8n workflow demonstrates a fundamental pattern for processing data from a Google Sheet, applying conditional logic, and making an HTTP request. It's a template for workflows that need to read tabular data, make decisions based on that data, and then interact with an external API.

What it does

This workflow performs the following steps:

Reads from Google Sheets: It starts by fetching data from a specified Google Sheet. This acts as the initial data source for the workflow.
Edits Fields (Set): The data retrieved from Google Sheets is then passed through a "Set" node, which is typically used to transform, rename, or add new fields to the incoming data.
Conditional Logic (If): An "If" node evaluates a condition based on the data. Depending on whether the condition evaluates to true or false, the workflow will proceed down one of two branches.
Makes HTTP Request: On the true branch of the "If" node, an HTTP Request is made. This could be used to send data to an API, trigger an external service, or fetch additional information.
Waits: On the false branch of the "If" node, a "Wait" node is encountered, pausing the workflow for a specified duration.
Chat Trigger: Separately, there's a "Chat Trigger" node, suggesting the potential for this workflow (or a related sub-workflow) to be initiated by a chat message.
OpenAI Interaction: An "OpenAI" node is present, indicating that the workflow can integrate with OpenAI services, likely for generating text, images, or other AI-driven tasks.
Sticky Note: A "Sticky Note" node is included for documentation or temporary notes within the workflow.

Prerequisites/Requirements

To use this workflow, you will need:

Google Sheets Account: Configured with the necessary credentials in n8n to read from your spreadsheet.
HTTP Endpoint: If you intend to use the HTTP Request node, you'll need a target API or URL to send requests to.
OpenAI Account & API Key: If you plan to utilize the OpenAI node for AI functionalities.
Chat Platform Integration: If the "Chat Trigger" is to be used, you'll need to configure it for your chat platform (e.g., Slack, Discord, Telegram).

Setup/Usage

Import the Workflow: Download the JSON provided and import it into your n8n instance.
Configure Credentials:
- Set up your Google Sheets credentials.
- Configure your OpenAI API key if using the OpenAI node.
Customize Nodes:
- Google Sheets: Specify the spreadsheet ID, sheet name, and the operation to perform (e.g., "Read All").
- Edit Fields (Set): Adjust the fields to be added, removed, or modified as per your data transformation needs.
- If: Define the specific condition that the workflow should evaluate to determine which branch to follow.
- HTTP Request: Configure the URL, method (GET, POST, etc.), headers, and body for your API call.
- Wait: Adjust the duration for the wait node if it's used in your logic.
- Chat Trigger: Configure the chat platform and trigger conditions.
- OpenAI: Select the desired OpenAI model and parameters for your AI task.
Activate the Workflow: Once configured, activate the workflow to enable it to run.
Trigger the Workflow:
- The Google Sheets node typically acts as a polling trigger, running at a set interval to check for new data.
- The Chat Trigger node will activate when a message matching its configuration is received.

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