How to Scrape JavaScript-Rendered Pages with OpenClaw
Scrape JavaScript-Rendered Pages with OpenClaw and ToolRouter. Automate bulk extraction from JavaScript-rendered sites on a schedule.
Tool
OpenClaw lets you automate `stealth_scrape` across multiple JavaScript-rendered pages on a schedule — pulling content from SPAs, dashboards, or dynamic sites as part of a recurring data collection job. This is the right approach when you need consistent data from JS-rendered pages more than once.
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 Stealth Scraper tool:
- Prepare the list of JavaScript-rendered URLs to scrape.
- Run `stealth-scraper` with `stealth_scrape` for each URL and collect extracted data in a normalized schema.
- Transform the results into your target format — JSON records, CSV rows, or database inserts.
- Schedule the run on your required cadence to keep the dataset current.
Example Prompt
Try this with OpenClaw using the Stealth Scraper tool
Use stealth-scraper to scrape these JavaScript-rendered product pages in batch: https://example.com/products/a, https://example.com/products/b, https://example.com/products/c. Extract name, price, and availability from each. Return all results in a stable JSON array I can use for comparison runs.
Tips
- Lock the extracted field schema before the first batch run so all results are comparable.
- Schedule scrapes during off-peak hours if volume is high to reduce detection likelihood.
- Diff results between scheduled runs to identify which pages changed — this is often more useful than the full dataset.