Build a Deal Finder Agent with Craigslist and Amazon Search

Used doesn’t always mean cheaper, and new doesn’t always mean expensive. The best way to decide is to compare both. An AI agent with Craigslist Search and Amazon Search can do that comparison for you and flag the real deals.

Why This Matters

When you’re shopping for something specific — a camera lens, a KitchenAid mixer, a set of dumbbells — you want to know what it costs new versus used. Checking both Craigslist and Amazon manually takes time, and it’s hard to compare across dozens of listings.

With AgentPatch, your agent can search both platforms, compare prices, and send you only the listings worth looking at. Chain in email and you get a deal alert without lifting a finger.

The Workflow

  1. Search Craigslist — Find used listings for the item in your area
  2. Search Amazon — Find the same item new, with current pricing
  3. Compare — Have the agent calculate the discount (used vs. new retail)
  4. Alert — Use Send Email to notify you of listings that are significantly below retail

Example

“I’m looking for a KitchenAid stand mixer. Search Craigslist SF Bay Area and Amazon. Email me any Craigslist listings that are at least 40% below the Amazon price.”

The agent:

1. Searching Amazon for "KitchenAid stand mixer"...
   Top result: KitchenAid Artisan 5-Quart — $349.99 new.

2. Searching Craigslist sfbay for "KitchenAid stand mixer"...
   Found 7 listings.

3. Comparing prices...
   3 listings are 40%+ below retail ($349.99):
   - KitchenAid Artisan Mixer (barely used) — $150 (57% off)
   - KitchenAid Pro 600 Stand Mixer — $180 (49% off)
   - KitchenAid Classic Plus 4.5qt — $125 (64% off)

4. Sending deal alert email...
   Done. Check your inbox for "Deal Alert: KitchenAid Stand Mixer (3 matches)".

You get an email with the Craigslist listings that beat retail by your threshold, with prices and links. Run this for any item you’re shopping for.

Wrapping Up

Combining Craigslist Search with Amazon Search turns your agent into a price comparison tool that works across new and used markets. Add email notifications and you’ve got a deal finder that runs on a single prompt. All tools are available through AgentPatch — visit agentpatch.ai to get started.

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