Track New Zillow ZIP Listings to Slack with n8n

Automatically track new Zillow ZIP listings and alert your team in Slack

This n8n workflow checks for new for-sale property listings in a specific ZIP code every morning, compares results to what you’ve already seen, and posts only the new Zillow matches to your chosen Slack channel.

What this workflow does

• Runs daily at 8:00 AM using a schedule trigger.
• Submits a ZIP-code for-sale search request to the APIllow properties endpoint via an HTTP Request.
• Waits briefly, then retrieves the completed search results using the returned job ID.
• Filters listings by checking each listing’s ZPID against previously stored ZPIDs in n8n static data.
• Posts new listings to Slack, including the address, price, beds/baths, and a Zillow link.
• Updates the stored ZPID list so the next day’s run continues tracking only truly new listings.

Use cases

• Real estate ops: get a daily feed of new ZIP-specific listings without manually checking Zillow.
• Investor research: monitor multiple ZIP areas and quickly spot newly posted properties.
• Team coordination: centralize listing discovery so agents and analysts see new opportunities in the same Slack channel.
• SaaS operators: provide automated market monitoring for internal workflows or customer-facing processes.

Technical details

• Schedule Trigger (runs every day at 8:00 AM)
• HTTP Request to APIllow (ZIP for-sale search via APIllow properties endpoint)
• Wait step before fetching results by job ID
• Code logic to compare ZPIDs and filter “new” listings using n8n static data
• Slack node to send formatted messages to the selected channel

Setup requirements

• Create an APIllow Header Auth credential in n8n with header key x-api-key and your APIllow API key.
• Add Slack credentials in n8n and choose your target channel in the Slack message action.
• Update the ZIP code (and optional parameters like max_items) in the APIllow request body.