How to Monitor Product Price Changes with OpenClaw
Monitor Product Price Changes with OpenClaw and ToolRouter. Schedule recurring price extractions and automate alerts on significant pricing changes.
Tool
OpenClaw automates recurring price monitoring — scraping product catalogues on a schedule, diffing against the previous extraction, and surfacing price changes immediately. This is the right approach for continuous competitive pricing intelligence without manual intervention.
Connect ToolRouter to OpenClaw
1Install the CLI
npm install -g toolrouter-mcp2Call tools directly from OpenClaw
toolrouter-mcp call web-search search --query "AI tools"
toolrouter-mcp toolsSteps
Once connected (see setup above), use the Catalogue Scraper tool:
- List the catalogue URLs to monitor and define your alert thresholds — price change percentage, stock status change.
- Run `catalogue-scraper` with `scrape_catalogue` for each catalogue on your chosen schedule.
- Diff the new extraction against the previous run and filter to changes exceeding your threshold.
- Generate a weekly price change report for the pricing team and trigger alerts for critical changes.
Example Prompt
Try this with OpenClaw using the Catalogue Scraper tool
Use catalogue-scraper to monitor prices from https://competitor.com/products weekly. Return a diff against last week's data with: changed products (sorted by change_pct), new products, and removed products. Alert on any price drop over 10% as high priority.
Tips
- Set a meaningful alert threshold — 10% is a significant pricing move, 1% is likely rounding.
- Run the monitoring on the same day each week so weekly diffs are directly comparable.
- Archive all historical diffs so you can trend pricing behavior over months, not just the most recent change.