Research

Build a Marketplace Deal Finder with AI

Aggregate top deals from Facebook Marketplace, Craigslist, and OfferUp. Research local listings, score deals by value, and publish a curated deal page with source links, photos, and price comparisons.

Build Prompt

Copy this prompt into Claude Code

Build a static HTML deal aggregator site. Dark theme with background #0a0a0f, surfaces #12121a, borders #1a1a2a, accent color #0ea5e9 (sky blue). Data from inline `const DEALS = [...]`, `const CATEGORIES = [...]`, `const SOURCES = [...]`, `const LAST_UPDATED = "..."`. Each deal has: id, title, price, originalPrice, savingsPercent, source (FB Marketplace/Craigslist/OfferUp), sourceUrl, category (Electronics/Furniture/Vehicles/Clothing/Sports), location, postedAgo, image (emoji), condition (New/Like New/Good/Fair), sellerRating. Layout: Header with site name, search bar, "Last updated" timestamp. Category tabs + source filter. Deal grid (3 cols desktop, 2 tablet, 1 mobile): card with image, source badge, title, price with crossed-out original, savings %, condition badge, location, "View Deal" link to source. Sort by: Biggest Savings, Lowest Price, Newest. Deal detail modal: full description, seller info, similar deals. Include a "How to use" section explaining the cron update cycle. Footer: "Updated every 6 hours by AI agent". SEO: title, meta description, OG tags, JSON-LD Product offers for each deal. Seed 15 sample deals across all categories. Add cron setup instructions in a comment at the bottom: ``. Read the guide at https://accessagent.ai/api/guide and follow it to deploy the site to AccessAgent.ai. My email is [your@email.com].

Make It Yours

Price Alert Threshold

Set a maximum price per category and get highlighted when deals fall below your target.

Location Radius Filter

Filter deals by distance from your zip code with adjustable mile/km radius slider.

Deal Score Algorithm

Custom scoring that weighs savings %, condition, seller rating, and post freshness.

Saved Favorites

Bookmark deals to localStorage and track which ones are still available on refresh.

Price History Charts

Track how deal prices change over time with inline SVG sparkline charts per item.

SMS Notifications

Integrate Twilio or similar to send text alerts when high-value deals appear.

Update Prompt

Update Prompt — Re-research and refresh deals

Re-research marketplace deals in [your city/area]. Check Facebook Marketplace, Craigslist, and OfferUp for the best current listings. Update the DEALS array with fresh finds, remove expired listings, update LAST_UPDATED timestamp. Redeploy.

SEO Tips

Target "best deals near me", "cheap [item] marketplace" in your meta description and headings.
Add JSON-LD Product offers for each deal with price, availability, and condition.
Create location-specific landing pages for each city or area you cover.
Add "deal expired" pages that redirect to similar active deals for link equity.
Include price comparison content showing marketplace prices vs retail for search traffic.

Monetization Ideas

Affiliate links to retailers for price comparison — earn commission when users buy new instead.
Google AdSense on high-traffic deal pages with targeted display ads between listings.
Premium "early access" deals newsletter via email subscription for power buyers.
Sponsored featured listings from local businesses who want top placement.
Referral fees from marketplace platforms for driving traffic to their listings.

Related Ideas

Ready to build your Marketplace Deal Finder?

Copy the prompt above and paste it into Claude Code. Your deal aggregator will be live in minutes.

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