Marketplace Stock & Availability Tracker

Out Of Stock Monitor

junipr/out-of-stock-monitor

Monitor product pages for stock-status transitions, availability changes, and related signals.

HobbyLink Japan Gunpla & Figure Prices + Stock Status

jpmarketdata/hlj-hobby-market-checker

Type a keyword and get what Gunpla, model kits and figures cost at HobbyLink Japan and if they are in stock, preorder, backorder or discontinued. Returns typical price and range over the items read, counts by stock status and release years. $0.02 per keyword, no results = no charge. Unofficial.

Shopify price tracker & stock monitor: watch any stores via public products.json and get only the diff — price changes with % delta, per-variant restocks, new & removed products.

Shopify Price & Stock Monitor — Track Any Store

vertaizen/shopify-price-monitor

Shopify price tracker & competitor monitoring via any store's public products.json. Get prices, sale prices, stock & new arrivals in clean JSON. Monitor mode returns only CHANGES — price drops, out-of-stock, restocks & launches. Webhook alerts, pay per result.

Shopify Competitor Tracker

problemsolver/shopify-competitor-tracker

Monitors Shopify stores and detects changes in products, prices, and stock availability. Get notified of new products, removed items, price changes, and stock updates — pay only for the changes that are found.

Shopify Store Monitor — Price, Stock & Catalog Changes

johndowdev/shopify-store-monitor

Monitors Shopify stores on a schedule and returns what changed since the last run: price moves, sales starting and ending, new and removed products, out-of-stock and back-in-stock variants. Pay per change, not per crawl.

Shopify Price & Stock Change Tracker

scrapebench/shopify-change-tracker

Monitor any Shopify store for changes — price increases/decreases, back-in-stock & out-of-stock flips, and products added or removed. Run on a schedule for set-and-forget competitor and supplier watching.

Marketplace Buy Box & Seller Monitor

glowing_glove/marketplace-buy-box-seller-monitor

Monitor marketplace product pages for price, stock, seller, offer, review, coupon, and availability signals.

Shopify Stock & Inventory Scraper

maarlon/shopify-stock-inventory-scraper

Extract complete catalogs, prices, images, and detect out-of-stock winning products in real-time from any Shopify store.

Monitor Shopify store inventory, availability, and prices across multiple stores using the public products.json API. Tracks variant-level stock levels, detects out-of-stock items, exports JSON and CSV, and optionally notifies a webhook when inventory changes.