Extract a Competitor's Product Catalogue
Pull structured product data from a competitor's catalogue — names, prices, descriptions, and images — for competitive analysis.
Monitor Product Price Changes
Track price changes across a product catalogue over time and alert when prices drop, increase, or products go out of stock.
Quick answer: Use the Catalogue Scraper tool through ToolRouter to monitor product price changes directly from Claude, ChatGPT, Microsoft Copilot, and OpenClaw — connect once, then drive it with plain-language prompts. No code required.
ToolPricing decisions get made on stale data. By the time your team notices a competitor cut prices or a key product went out of stock, you have already lost margin or missed purchase windows. The problem isn't awareness — it's the gap between when the change happened and when you found out.
Catalogue Scraper extracts current prices across a full product catalogue and returns the data in a consistent schema. Running it on a schedule and diffing against the previous extraction surfaces every price change and stock status update the moment it appears on the site — not days later.
Pricing teams, buyers, and e-commerce managers use this to respond to competitor price changes before they affect conversion, catch restocks on high-demand products, and maintain current price parity reports.
How to monitor product price changes with Claude, ChatGPT, Microsoft Copilot, and OpenClaw
Connect ToolRouter
1Open connector settings Open Settings
2Add a custom connector with these details
Name
ToolRouterURL
https://api.toolrouter.com/mcp3Let Claude set you up Open Claude
Use Claude with Catalogue Scraper to extract current prices and compare them against a previous snapshot. Claude can identify which products changed, calculate the size of each change, and reason about what pricing moves might mean — rather than just returning a list of numbers that changed.
How to monitor product price changes
Once connected (see setup above), use the Catalogue Scraper tool — the same steps work with Claude, ChatGPT, Microsoft Copilot, OpenClaw, and any MCP client:
- Provide the catalogue URL and a previous price snapshot to compare against (or ask Claude to extract the current prices as a new baseline).
- Ask Claude to use `catalogue-scraper` with `scrape_catalogue` to extract current prices.
- Ask Claude to compare the new prices against the previous snapshot and list every change.
- Ask Claude to interpret the pattern — targeted repricing, across-the-board adjustment, or clearance pricing.
Example prompt
Try this with the Catalogue Scraper tool
Use catalogue-scraper to extract current prices from https://competitor.com/products. I've attached last month's price list. Compare the two and tell me: which products changed price, by how much, in which direction, and what pricing strategy this looks like — targeted discounting, broad reduction, or something else?
Tips
- Provide the previous snapshot as a structured list, not a screenshot, so Claude can make exact comparisons.
- Ask Claude to identify pricing patterns — if cuts cluster in one category, it's likely intentional strategy.
- Request percentage changes alongside absolute changes — a £2 drop on a £5 product is very different from a £2 drop on a £200 product.
Frequently Asked Questions
How do I monitor product price changes with an AI assistant?
Track price changes across a product catalogue over time and alert when prices drop, increase, or products go out of stock. Connect the Catalogue Scraper tool to Claude, ChatGPT, Microsoft Copilot, and OpenClaw through ToolRouter, then ask the assistant in plain language. For example: Provide the catalogue URL and a previous price snapshot to compare against (or ask Claude to extract the current prices as a new baseline). Ask Claude to use `catalogue-scraper` with `scrape_catalogue` to extract current prices.
Which AI assistants can monitor product price changes?
Claude, ChatGPT, Microsoft Copilot, and OpenClaw can all monitor product price changes using the Catalogue Scraper tool through ToolRouter, with no API keys or coding required.
What does the Catalogue Scraper tool do?
Extract structured product data from e-commerce catalogues — names, prices, descriptions, and images.
Related Use Cases
Build a Product Database from Multiple Suppliers
Extract product data from multiple supplier catalogues and consolidate it into a single normalized database.
Migrate a Product Catalogue to a New Platform
Extract your existing product catalogue and re-import it into a new e-commerce platform without manual copying.
Track New Product Launches in a Catalogue
Monitor a competitor or supplier catalogue for new product launches and get alerts the moment new SKUs appear.