n8n Workflow: RapidAPI Domain Insights with WHOIS and GPT-5 Nano

This n8n workflow leverages RapidAPI to perform WHOIS lookups for domains and then uses GPT-5 Nano (via OpenAI) to generate insights based on the WHOIS data. It's designed to provide quick, AI-powered summaries of domain information.

What it does

This workflow automates the following steps:

1. Receives a domain name: It starts by listening for incoming webhook requests, expecting a domain name as input.
2. Performs WHOIS Lookup: It makes an HTTP request to a RapidAPI endpoint to perform a WHOIS lookup for the provided domain.
3. Generates AI Insights: It sends the WHOIS lookup results to OpenAI (presumably using a GPT-5 Nano model, as indicated by the directory name) to generate insightful summaries.
4. Responds to Webhook: Finally, it responds to the initial webhook request with the generated AI insights.

Prerequisites/Requirements

To use this workflow, you will need:

• n8n Instance: A running n8n instance.
• RapidAPI Account: An account with RapidAPI and an API key for a WHOIS lookup service.
• OpenAI Account: An OpenAI account and an API key with access to GPT models (e.g., GPT-5 Nano).
• Webhook Trigger: A system or application that can send HTTP POST requests to trigger the workflow.

Setup/Usage

1. Import the Workflow:

   • Copy the provided JSON code.
   • In your n8n instance, click "New" in the workflows sidebar, then "Import from JSON".
   • Paste the JSON and click "Import".

2. Configure Credentials:

   • HTTP Request (WHOIS Lookup):
     • Locate the "HTTP Request" node.
     • You will need to configure the Authentication for your RapidAPI WHOIS service. This typically involves adding X-RapidAPI-Key and X-RapidAPI-Host headers with your RapidAPI key and host.
     • Ensure the URL is correctly set to your chosen RapidAPI WHOIS endpoint.
   • OpenAI:
     • Locate the "OpenAI" node.
     • Configure your OpenAI API Key credential.

3. Configure Webhook:

   • Locate the "Webhook" node.
   • Activate the workflow.
   • Copy the "Webhook URL" provided by the node. This URL will be used to trigger the workflow.

4. Test the Workflow:

   • Send an HTTP POST request to the copied Webhook URL. The request body should contain the domain you want to analyze. For example:

     {
       "domain": "example.com"
     }
     

   • Observe the execution in n8n to ensure it runs successfully.
   • The "Respond to Webhook" node will return the AI-generated insights.