# Whoiser

> Use this tool when you need to retrieve domain registration and ownership information. It provides a lightweight MCP server for performing WHOIS lookups, enabling standardized queries of domain metadata through a simple interface. Ideal for use cases requiring domain verification, ownership validation, or metadata retrieval, it accepts domain names as input and returns detailed registration information as output.

Canonical page: https://skillsregistry.net/skills/whoiser-whois  
JSON: https://api.skillsregistry.net/v1/skills/whoiser-whois

## Description

Provides a lightweight MCP server for performing WHOIS lookups using the whoiser library. Enables retrieving domain registration and ownership information through a standardized interface. Built with TypeScript and the Model Context Protocol SDK, this implementation offers a simple, type-safe approach to querying domain metadata.

## Trust

- **Trust score (0–1):** 0.65
- **Verification tier:** scanned
- **Last scanned:** 2026-09-01

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-09-01

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/whoiser-whois)
- **Repository:** <https://github.com/modelcontextprotocol-servers/whois-mcp>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "whoiser-whois"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/whoiser-whois` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/whoiser-whois/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt