AI Instagram DM Responder Agent (via ManyChat & OpenAI)

Unlock Automated & On-Brand Instagram Conversations with this AI Agent

This n8n workflow acts as an intelligent AI Agent designed to handle your Instagram Direct Messages. It receives messages forwarded by ManyChat, processes them using OpenAI's ChatGPT, and sends back contextually relevant replies that align with your defined brand persona. This allows you to provide instant, personalized responses to your Instagram audience, 24/7.

Key Features & Benefits

• AI-Powered Conversational Ability: Leverages OpenAI's advanced language models to understand and generate human-like responses to incoming Instagram DMs.
• Customizable Persona: Easily define the AI's personality, writing style, and communication rules in the 'Set your system promt for AI' node to ensure responses perfectly match your brand voice (e.g., an 'Instagram influencer' persona).
• Context-Aware Interactions: Utilizes built-in memory (Langchain Memory Buffer Window) to remember previous parts of the conversation, leading to more coherent and natural dialogues.
• Seamless ManyChat Integration: Designed to work with ManyChat, which acts as the bridge to your Instagram account, handling message fetching and sending.
• Scalable DM Management: Frees up your time by automating responses to common queries, greetings, or initial interactions, allowing you to focus on more complex engagement.
• Simple Setup: Get up and running quickly by configuring the webhook, AI prompt, and OpenAI credentials.

• An n8n instance (Cloud or self-hosted).
• OpenAI API Key with access to a suitable model (e.g., gpt-3.5-turbo or gpt-4).
• A ManyChat account connected to your Instagram account.
• Ensure your ManyChat flow can send POST requests to a webhook and handle the JSON response.

1. Download the n8n workflow JSON file and import it into your n8n instance.
2. Configure the 'Getting message from Instagram' (Webhook) node: Copy the 'PRODUCTION' URL. You'll use this URL in ManyChat.
3. In the 'Set your system promt for AI' node:
   • Customize the prompt variable. This is where you define your AI's persona, context, task, and style rules. For example: Persona: You are a friendly community manager for a SaaS startup...
   • Ensure sessionId is set to ={{ $json.body.session_id }} and chatInput is set to ={{ $json.body.text }} (or adjust based on your ManyChat payload structure).
4. In the 'ChatGPT model' node, select or create your OpenAI API credentials.
5. Optional: In the 'Local n8n memory' node, you can adjust the contextWindowLength to control how many past messages the AI remembers (default is 20).
6. In your ManyChat flow:
   • Add an 'External Request' action (or similar) to send a POST request to the n8n Webhook URL copied in step 2.
   • Configure the request body in ManyChat to send data like session_id and text (user's message).
   • Set up ManyChat to receive the response from the n8n workflow (via the 'RespondToWebhook' node) and send it as a reply in Instagram.
7. Activate the n8n workflow. Test thoroughly by sending messages to your Instagram account via ManyChat.