How to Monitor Product Price Changes with Claude
Monitor Product Price Changes with Claude and ToolRouter. Track price changes across product catalogues and get analysis of pricing trends and competitive shifts.
Tool
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.
Connect ToolRouter to Claude
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
Steps
Once connected (see setup above), use the Catalogue Scraper tool:
- 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 Claude using 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.