# Domain Whois

> Check domain name availability across 12 TLDs via direct WHOIS/RDAP lookups. No external service needed. Use when the user asks about domain availability, wants to find a domain name, or mentions registering a domain.

- **Type:** Skill
- **Install:** `agentstack add skill-stevederico-skills-domain-whois`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [stevederico](https://agentstack.voostack.com/s/stevederico)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [stevederico](https://github.com/stevederico)
- **Source:** https://github.com/stevederico/skills/tree/master/domain-whois

## Install

```sh
agentstack add skill-stevederico-skills-domain-whois
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Domain WHOIS Checker

Check domain availability across 12 TLDs via direct WHOIS and RDAP lookups. No API dependency.

## When to use

- User asks "is example.com available?"
- User wants to find available domain names
- User is brainstorming project names and wants to check domains

## How to check

Run the bundled script:

```bash
scripts/check.sh 
```

Pass the base name only (no TLD). The script checks all 12 TLDs in parallel:
`.com`, `.net`, `.org`, `.io`, `.dev`, `.app`, `.co`, `.xyz`, `.ai`, `.shop`, `.site`, `.tech`

## Output format

Pipe-delimited, sorted available first:

```
example.dev|Available
example.app|Available
example.com|Taken
example.shop|Unknown
```

## Presenting results

Format as a table:

| Domain | Status |
|--------|--------|
| example.dev | Available |
| example.app | Available |
| example.com | Taken |

## Checking multiple names

Run the script once per name. Can run in parallel:

```bash
scripts/check.sh name1 &
scripts/check.sh name2 &
wait
```

## How it works

- 10 TLDs checked via `whois -h ` (port 43 TCP)
- `.dev` and `.app` checked via RDAP (HTTP to Google registry)
- All 12 lookups run in parallel
- Results parsed for known available/taken patterns

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [stevederico](https://github.com/stevederico)
- **Source:** [stevederico/skills](https://github.com/stevederico/skills)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-stevederico-skills-domain-whois
- Seller: https://agentstack.voostack.com/s/stevederico
- Browse the marketplace: https://agentstack.voostack.com/browse

---
Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.