Retail price monitors

Summary

Retail price monitors is the umbrella for a fleet of retailer-specific bots, each tuned to a different store's clearance patterns and pricing quirks. Together they continuously scan Home Depot, Lowe's, Sam's Club, Walmart, and Amazon for the kinds of mispriced or clearance items resellers care about, and post structured findings into Discord.

Why it exists

No single bot is good at every retailer. Each store has its own quirks: penny pricing at Home Depot, plank clearance at Lowe's, Sam's Club's hidden cut-tag prices, Walmart's sniper-friendly pricing windows. The fleet specializes per retailer rather than trying to build one generic price watcher that does each one badly.

Coverage

• Home Depot store-level penny clearance scanning + SKU watchlists with discount thresholds
• Lowe's clearance monitoring, with special handling for plank/lumber drops
• Sam's Club cut-tag price alerts
• Walmart pricing window alerts
• Amazon Amazon-to-Amazon arbitrage finding

How it works

Each bot has its own fetch path: official APIs where possible, Chrome-impersonating clients (curl_cffi) where the retailer's anti-bot is aggressive. Findings normalize into a shared schema, get deduped against recent runs, and post into the appropriate Discord channel with the structured detail a reseller needs (store number where applicable, SKU, current price, baseline, link).

Stack

• Python + Flask the heavier scrapers
• Node.js + discord.js Discord posting layer
• curl_cffi where Chrome impersonation matters
• Railway hosting

Status

Most live, a few in active development.