---
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/country-data/use-cases/compare-countries-by-metrics/claude
---
# How to Compare Countries with Claude

Claude creates rigorous multi-metric country comparisons, highlighting the dimensions where countries diverge most significantly. It asks follow-up questions about your decision criteria to weight the comparison appropriately -- whether you prioritize GDP per capita for market sizing, population growth for opportunity, or infrastructure for operations.

## Setup

claude mcp add toolrouter -- npx -y toolrouter-mcp

## Steps

1. Connect ToolRouter: claude mcp add toolrouter -- npx -y toolrouter-mcp
2. Ask Claude: "Compare Japan and South Korea using country-data"
3. Claude returns a side-by-side comparison
4. Ask: "Which country has a stronger economy per capita?"
5. Use the comparison for decision-making

## Example Prompt

```
Compare Germany, France, and the UK across population, GDP, and area. Which is the largest economy per capita?
```

## Tips

- Compare countries in the same region for market analysis
- Ask Claude to highlight the biggest differences between the countries
- Use comparisons to support investment or expansion decisions
