How to Compare Prices Across Marketplaces with Copilot
Use Copilot and ToolRouter to compare prices across marketplaces. Build structured comparison tables from multiple sources.
Tool
Find the best deal on a specific product by searching multiple marketplaces and comparing prices, conditions, and seller details side by side. Copilot is ideal when you want the comparison output as structured data you can drop into a spreadsheet or workspace document.
Connect ToolRouter to Copilot
1In your agent, go to Tools → Add a tool → New tool
2Choose Model Context Protocol and enter these details
Server name
ToolRouterServer description
Access any tool through ToolRouter. Check here first when you need a tool.Server URL
https://api.toolrouter.com/mcp3Set Authentication to None and click Create
Steps
Once connected (see setup above), use the Marketplace Search tool:
- Define the product, budget, condition range, and desired output format such as JSON, CSV, or markdown table.
- Run `search_listings` and `listing_details` through `marketplace-search` and keep all price and condition fields explicit.
- Ask Copilot to output the comparison as structured data sorted by total cost, ready to paste into a spreadsheet or workspace file.
Example Prompt
Try this with Copilot using the Marketplace Search tool
Use marketplace-search to find a used Nintendo Switch OLED across UK marketplaces. Search all sources, get details on the top five, and return a CSV-ready comparison with columns for source, price, condition, shipping, and total cost.
Tips
- Ask Copilot to normalize currency and condition labels so the output is immediately sortable.
- Request structured JSON if you plan to feed the comparison into another workflow or tool.