---
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/whois-rdap/use-cases/check-domain-expiry/claude
---
# How to Check Domain Expiry with Claude

Claude approaches domain registration research as an investigative conversation, connecting registration patterns to strategic insights through deep reasoning. Ask Claude to analyze ownership timelines, assess domain provenance for acquisitions, and cross-reference registrar details across your entire portfolio in a single session. Its ability to draw inferences from registration data makes it especially valuable for due diligence, competitive intelligence, and security investigations where context matters.

## Setup

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

## Steps

1. Connect ToolRouter: claude mcp add toolrouter -- npx -y toolrouter-mcp
2. Ask Claude: "Check the expiration dates for these domains using whois-rdap" and provide your domain list
3. Claude returns expiration dates for each domain
4. Review which domains are expiring soon
5. Set renewal reminders for your own domains and monitor target domains

## Example Prompt

```
Check the expiration dates for all our company domains: example.com, example.io, example.dev, and our-brand.com. Flag any that expire within 90 days.
```

## Tips

- Ask Claude to check all your domains in one batch for a quick overview
- Set up a quarterly check of all your domain expiration dates
- Monitor competitor domains for potential acquisition when they expire
