---
title: ToolRouter — Agent Use Case Guide
description: Step-by-step guide for completing a task with a specific AI agent using ToolRouter.
url: https://toolrouter.com/tools/marketplace-search/use-cases/compare-prices-across-marketplaces/copilot
---
# How to Compare Prices Across Marketplaces with Copilot

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.

## Setup

{"mcpServers":{"toolrouter":{"command":"npx","args":["-y","toolrouter-mcp"]}}}

## Steps

1. Connect ToolRouter in Copilot: {"mcpServers":{"toolrouter":{"command":"npx","args":["-y","toolrouter-mcp"]}}}
2. Define the product, budget, condition range, and desired output format such as JSON, CSV, or markdown table.
3. Run `search_listings` and `listing_details` through `marketplace-search` and keep all price and condition fields explicit.
4. Ask Copilot to output the comparison as structured data sorted by total cost, ready to paste into a spreadsheet or workspace file.

## Example Prompt

```
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.
