AI agent for Instagram DM/inbox. Manychat + Open AI integration

# AI Agent for Instagram DM Inbox with OpenAI Integration

This n8n workflow provides a robust framework for building an AI agent capable of handling Instagram Direct Message (DM) inbox interactions, leveraging OpenAI's language models for intelligent responses. It's designed to be a starting point for automating customer service, engagement, or information retrieval directly within your Instagram DMs.

## What it does

This workflow sets up the foundational components for an AI agent:

1.  **Receives Webhook Input**: It listens for incoming data via a webhook, which would typically be triggered by a new Instagram DM or a message from a platform like ManyChat that forwards DM content.
2.  **Edits Fields (Set)**: Allows for initial data transformation or setting of variables based on the incoming webhook payload. This can be used to extract relevant message content, sender ID, or other metadata.
3.  **Initializes AI Agent**: Sets up an AI agent powered by LangChain, providing the core intelligence for processing messages and generating responses.
4.  **Configures OpenAI Chat Model**: Integrates with an OpenAI Chat Model (e.g., GPT-3.5, GPT-4) to understand the user's intent and generate human-like text responses.
5.  **Manages Simple Memory**: Incorporates a "Simple Memory" (Buffer Window Memory) to maintain context across a conversation, allowing the AI agent to remember previous turns in the dialogue.
6.  **Responds to Webhook**: Sends a response back to the originating system (e.g., ManyChat or Instagram API wrapper) to deliver the AI agent's generated message.

## Prerequisites/Requirements

To use this workflow, you will need:

*   **n8n Instance**: A running instance of n8n.
*   **OpenAI API Key**: An API key for OpenAI to access their chat models.
*   **Instagram Account**: An Instagram account (likely a Business or Creator account) that can receive DMs.
*   **Webhook Source**: A system capable of sending webhook requests to n8n when a new Instagram DM is received. This could be:
    *   **ManyChat**: If you're using ManyChat for Instagram automation.
    *   **Custom Integration**: A custom script or service that monitors Instagram DMs and sends data to n8n.
    *   **Instagram Graph API**: Direct integration with the Instagram Graph API (requires development).
*   **Understanding of LangChain Concepts**: Familiarity with LangChain agents and memory concepts will be beneficial for advanced customization.

## Setup/Usage

1.  **Import the Workflow**:
    *   Copy the provided JSON code.
    *   In your n8n instance, click "New" in the workflows section.
    *   Click the three dots menu (`...`) and select "Import from JSON".
    *   Paste the JSON code and click "Import".
2.  **Configure Webhook Trigger**:
    *   Open the "Webhook" node.
    *   Note down the "Webhook URL" generated by n8n. This URL will be used by your Instagram DM forwarding system (e.g., ManyChat) to send incoming messages to n8n.
    *   Set the "HTTP Method" to `POST` (or as required by your forwarding system).
3.  **Configure OpenAI Credentials**:
    *   Open the "OpenAI Chat Model" node.
    *   Select or create an OpenAI API credential. If creating a new one, you will need your OpenAI API Key.
4.  **Customize AI Agent Logic**:
    *   Open the "AI Agent" node.
    *   Configure the agent's "Tools" and "Agent Type" based on the specific tasks you want it to perform (e.g., answering FAQs, retrieving product info).
    *   Adjust the "System Message" to define the agent's persona and instructions.
5.  **Configure Simple Memory**:
    *   Open the "Simple Memory" node.
    *   Adjust the "K" value (window size) to control how many previous messages the agent remembers.
6.  **Customize "Edit Fields" (Set) Node**:
    *   Modify this node to extract and format the necessary information from the incoming webhook payload (e.g., `{{ $json.body.message.text }}`, `{{ $json.body.sender.id }}`).
7.  **Configure "Respond to Webhook" Node**:
    *   Ensure this node is configured to send the AI agent's response back in the format expected by your Instagram DM forwarding system. You'll likely map the AI agent's output to a field like `{{ $json.response }}`.
8.  **Activate the Workflow**:
    *   Once configured, activate the workflow by toggling the "Active" switch in the top right corner of the n8n editor.
9.  **Test the Integration**:
    *   Send a test DM to your Instagram account to ensure the webhook triggers correctly and the AI agent responds as expected.

This workflow provides a flexible foundation. You can expand it by adding more nodes for:
*   Conditional logic (e.g., if message contains keywords).
*   Integration with other services (e.g., Google Sheets for data lookup, CRM systems).
*   Advanced LangChain tools (e.g., search, API calls) to enhance the AI agent's capabilities.