---
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/domain-search/use-cases/search-domain-variations/copilot
---
# How to Search Domain Variations with Copilot

Copilot brings domain search directly into your project setup workflow, letting you find and evaluate available domains while scaffolding a new project. Check availability for names that work as both domains and CLI commands, search across developer-friendly TLDs like .dev and .io, and integrate domain selection into your project initialization process. Perfect for developers who want to secure the right name before writing the first line of code.

## Setup

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

## Steps

1. Add ToolRouter to Copilot MCP config
2. In Copilot Chat: "Search for variations of this domain name" and provide it
3. Copilot checks multiple variations and returns results
4. Ask: "Which of these would work best for a developer tool?"
5. Register your chosen domain

## Example Prompt

```
Search for variations of "devkit" across .com, .dev, .io, .tools, and .sh extensions.
```

## Tips

- Developer-focused TLDs like .dev, .sh, and .tools often have better availability
- Copilot can check availability as part of your project initialization workflow
- Try combining your project name with common developer suffixes like -hq, -app, or -cli
