# whois

> whois — kincaidyang-whois. Use this tool when you need to retrieve WHOIS or RDAP information for domains, IP addresses, or network identifiers. It solves problems related to domain ownership, IP address tracking, and network administration by providing normalized JSON output. Input a domain, IP address, CIDR prefix, or ASN to receive detailed registration data in a standardized format.

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

## Description

Query WHOIS/RDAP information for domains, IP addresses, CIDR prefixes and ASNs. Results are normalized to RDAP-style (RFC 9083) JSON. Public instance of the open-source KincaidYang/whois server, which can also be self-hosted.

## Trust

- **Trust score (0–1):** 0.67
- **Verification tier:** scanned
- **Last scanned:** 2026-08-30

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-08-30

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/yti142h7i8)
- **Repository:** <https://github.com/KincaidYang/whois>

## 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": "kincaidyang-whois"
    }
  }
}
```

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