internet-names-mcp 0.1.3

MCP server for checking availability of domain names, social media handles, and subreddits

Internet Names MCP Server

An MCP server for checking availability of domain names, social media handles, and subreddits. Returns clean JSON responses suitable for programmatic use.

Features

• Domain names - Check availability via RDAP (free) or NameSilo API (includes pricing)
• Social media handles - Instagram, Twitter/X, Reddit, YouTube, TikTok, Twitch, Threads
• Subreddits - Check if subreddit names are available on Reddit
• Comprehensive search - Generate name combinations and check everything at once

Quick Start

1. Add to Claude Code

claude mcp add --scope user internet-names-mcp uvx internet-names-mcp

That's it! The server works immediately using RDAP for domain lookups.

2. Optional: Configure NameSilo API (for domain pricing)

The server works without an API key using RDAP. To get domain pricing info, add a free NameSilo API key:

1. Create an account at namesilo.com (or log in)
2. Go to API Manager: https://www.namesilo.com/account/api-manager
3. Click Generate New API Key
4. Copy the key and run:

uvx internet-names-mcp --setup

Or set via environment variable:

export NAMESILO_API_KEY="your-key-here"

CLI Commands

uvx internet-names-mcp              # Run the MCP server
uvx internet-names-mcp --setup      # Configure API keys interactively
uvx internet-names-mcp --show-config # Show current configuration
uvx internet-names-mcp --version    # Show version
uvx internet-names-mcp --help       # Show help

Tools

get_supported_socials()

Returns list of supported social media platforms.

Response:

{
  "platforms": ["instagram", "twitter", "reddit", "youtube", "tiktok", "twitch", "threads", "subreddit"]
}

Note: subreddit is checked via check_subreddits(), not check_handles().

---

check_domains(names, tlds?, method?, onlyReportAvailable?)

Check domain name availability and pricing.

Parameters:

Name	Type	Default	Description
names	list[str]	required	Domain names or base names to check
tlds	list[str]	["com", "io", "ai", "co", "app", "dev", "net", "org"]	TLDs to check
method	str	"auto"	"auto", "rdap", or "namesilo"
onlyReportAvailable	bool	false	If true, omit unavailable domains from response

If a name contains a dot, it's treated as a full domain. Otherwise, it's combined with each TLD.

Response:

{
  "available": [
    {"domain": "myapp.com", "price": 17.29},
    {"domain": "myapp.io", "price": 34.99}
  ],
  "unavailable": ["myapp.ai"],
  "summary": {
    "cheapestAvailable": {"domain": "myapp.com", "price": 17.29},
    "shortestAvailable": {"domain": "myapp.io", "price": 34.99}
  }
}

---

check_handles(username, platforms?, onlyReportAvailable?)

Check social media handle availability across platforms.

Parameters:

Name	Type	Default	Description
username	str	required	The username/handle to check
platforms	list[str]	all platforms	Platforms to check
onlyReportAvailable	bool	false	If true, omit unavailable handles from response

Supported platforms: instagram, twitter, reddit, youtube, tiktok, twitch, threads

Note: Twitter/X checking uses a headless browser and takes ~4 seconds.

Response:

{
  "available": ["instagram", "tiktok", "youtube"],
  "unavailable": [
    {"platform": "twitter", "url": "https://x.com/myapp"},
    {"platform": "reddit", "url": "https://reddit.com/user/myapp"}
  ]
}

---

check_subreddits(names, onlyReportAvailable?)

Check subreddit name availability on Reddit.

Parameters:

Name	Type	Default	Description
names	list[str]	required	Subreddit names to check (with or without r/ prefix)
onlyReportAvailable	bool	false	If true, omit unavailable subreddits from response

Response:

{
  "available": ["mynewsubreddit"],
  "unavailable": [
    {"name": "programming", "subscribers": 6835000},
    {"name": "privatesubreddit", "note": "private"}
  ]
}

---

check_everything(components, tlds?, platforms?, method?, requireAllTLDsAvailable?, onlyReportAvailable?, alsoIncludeHyphens?)

Comprehensive check across domains and social media. Generates name combinations from components, checks domains first (fast), then checks social handles for names that pass the domain check.

Parameters:

Name	Type	Default	Description
components	list[str]	required	Name components to combine (e.g., ["red", "sweater"])
tlds	list[str]	["com", "net", "org", "io", "ai"]	TLDs to check
platforms	list[str]	all platforms	Social platforms to check
method	str	"auto"	"auto", "rdap", or "namesilo"
requireAllTLDsAvailable	bool	false	If true, name must be available in ALL TLDs to pass
onlyReportAvailable	bool	false	If true, omit unavailable items from response
alsoIncludeHyphens	bool	false	If true, also check hyphenated versions

Name Generation: From components ["red", "sweater"], generates:

• Single components: red, sweater
• Concatenations: redsweater, sweaterred

Response:

{
  "availableDomains": [
    {"domain": "redsweater.com", "price": 17.29},
    {"domain": "redsweater.io", "price": 34.99}
  ],
  "domainSuccessfulBasenames": ["redsweater", "sweaterred"],
  "availableHandles": {
    "redsweater": ["instagram", "twitter", "youtube"],
    "sweaterred": ["instagram", "tiktok"]
  },
  "unavailableHandles": {
    "redsweater": [{"platform": "reddit", "url": "..."}]
  },
  "summary": {
    "fullyAvailable": ["sweaterred"],
    "cheapestDomain": {"domain": "redsweater.com", "price": 17.29}
  }
}

The fullyAvailable list contains names that are available on ALL checked platforms.

Domain Lookup Methods

Method	Description	Pricing	Speed
auto	Uses NameSilo if API key configured, otherwise RDAP	With NameSilo	Fast
rdap	Direct registry queries via IANA bootstrap	No	Fast
namesilo	NameSilo API (requires API key)	Yes	Fast

Configuration

Configuration is stored in:

• macOS/Linux: ~/.config/internet-names-mcp/config.json
• Windows: %APPDATA%/internet-names-mcp/config.json

API key lookup order:

1. Config file (set via --setup)
2. Environment variable (NAMESILO_API_KEY)
3. macOS Keychain (legacy)

Development

Local Setup

git clone <repo-url> InternetNamesMCP
cd InternetNamesMCP
python3 -m venv .venv
source .venv/bin/activate
pip install -e ".[dev]"
playwright install chromium

Running Tests

source .venv/bin/activate
python test_server.py

Project Structure

├── src/internet_names_mcp/
│   ├── __init__.py      # CLI entry point
│   ├── server.py        # MCP server
│   ├── config.py        # Configuration management
│   ├── rdap_bootstrap.py # RDAP bootstrap cache
│   └── rdap_client.py   # Async RDAP client
├── pyproject.toml       # Package configuration
└── README.md

Troubleshooting

"sherlock not found"

Sherlock is installed automatically as a dependency. If you see this error, reinstall:

uvx --reinstall internet-names-mcp

"playwright not installed" or Chromium errors

Install Playwright browser:

playwright install chromium

Or with uvx:

uvx --from playwright install chromium

Twitter checks fail or timeout

Twitter/X checks use a headless browser which can be slow or blocked. If checks consistently fail, Twitter may be rate-limiting or blocking automated access.

License

MIT