Create AI-Powered Website Chatbot with Langflow Backend and Custom Branding

This workflow integrates a chatbot frontend with a backend powered by Langflow , a visual low-code AI development tool. The flow is triggered whenever a chat message is received via the n8n chatbot widget embedded on a website. It then sends the message to a Langflow flow for processing and returns the generated response to the user.

How It Works

1. Chat Trigger : The workflow starts with a webhook trigger (When chat message received) that listens for incoming chat messages from the n8n Chat interface.
2. Langflow Integration : The chat input is sent to a Langflow instance via an HTTP request (Langflow node). The request includes the user's message and expects a response from the Langflow flow.
3. Response Processing : The output from Langflow is extracted and formatted using the Edit Fields node, ensuring the chatbot displays the response correctly.
4. Customization : Sticky notes provide instructions for embedding the n8n Chat widget on a website and customizing its appearance, including welcome messages, language settings, and branding.

Set Up Steps

1. Configure Langflow Connection :

   • Replace LANGFLOW_URL and FLOW_ID in the HTTP request node with your Langflow instance details.
   • Ensure the API headers (e.g., Content-Type: application/json) and authentication (if required) are correctly set.

2. Deploy n8n Chat :

   • Add the provided CDN script to your website, replacing YOUR_PRODUCTION_WEBHOOK_URL with the webhook URL generated by the When chat message received node.
   • Customize the chatbot’s UI (e.g., title, placeholder text, initial messages) using the JavaScript snippet in the sticky notes.

3. Activate Workflow :

   • Toggle the workflow to "Active" in n8n.
   • Test the chatbot by sending a message and verifying the Langflow response is processed and displayed correctly.

Advantages

✅ Seamless Langflow Integration
It allows n8n to communicate directly with a Langflow flow via API, enabling AI responses using custom-designed Langflow logic.

✅ No-Code Chatbot Deployment
With just a script snippet, the chatbot widget can be embedded into any website. Minimal coding is required to launch a fully functioning AI chatbot.

✅ Customizable UI/UX
The included embed code offers full control over the chatbot's appearance, language, welcome message, input placeholder, and branding—ideal for white-label or customer-facing deployments.

✅ Modular and Extensible
Because it's built in n8n, this chatbot can be easily extended with other services like CRMs, email alerts, or databases, without leaving the platform.

✅ Real-Time AI Interactions
Thanks to Langflow's API and chat response support, users get immediate and dynamic AI-driven replies.

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