# Whoiser
> Provides a lightweight server for performing WHOIS lookups using the whoiser library, enabling retrieval of domain registration and ownership information through TypeScript-based type-safe queries.
Canonical: https://www.mcpfolio.com/servers/whoiser
Last updated: 2026-10-28
## Catalog record

- Publisher: modelcontextprotocol-servers
- Categories: development, search

## Repository

https://github.com/modelcontextprotocol-servers/whois-mcp

## Transports

stdio

## Authentication

No credentials were configured; the tested read-only tool “whois_domain” succeeded in an isolated environment. Other tools may have additional requirements.

## Tools

- **whois_domain**: Looksup whois information about the domain
- **whois_tld**: Looksup whois information about the Top Level Domain (TLD)
- **whois_ip**: Looksup whois information about the IP
- **whois_as**: Looksup whois information about the Autonomous System Number (ASN)

## Sources

- [MCP.Directory public profile](https://mcp.directory/servers/whoiser)
- [Linked publisher repository](https://github.com/modelcontextprotocol-servers/whois-mcp)
- [npm registry metadata](https://registry.npmjs.org/%40mcp-server%2Fwhois-mcp)

## Setup

Use the interactive setup panel on [the detail page](https://www.mcpfolio.com/servers/whoiser) to view instructions for each supported client.