@domainkits/mcp

@domainkits/mcp

MCP server for the DomainKits domain data API.

This is the official MCP server for the DomainKits API, published and maintained by the DomainKits team. DomainKits is built and operated by Lyalpha GmbH, with domain data and infrastructure provided by ABTdomain, our domain intelligence and data aggregation platform. This repository is hosted under the ABTdomain GitHub organisation. Learn more about the relationship at domainkits.com/about.

DomainKits is one API with a shared key across every endpoint. This package exposes all 28 of them to any MCP client: expiring domains, newly registered domains, DNS, WHOIS, reverse nameserver lookups, typosquat detection, TLD trends and more.

Works without an API key on a guest quota, so you can try it before signing up.

Install

No install step. Point your MCP client at the package and npx fetches it on first run.

Claude Desktop: add to claude_desktop_config.json:

{
  "mcpServers": {
    "domainkits": {
      "command": "npx",
      "args": ["-y", "@domainkits/mcp"]
    }
  }
}

Cursor: add to .cursor/mcp.json in your project, or the global equivalent. Same shape as above.

Any MCP client that speaks stdio works with the same config.

Credentials

No key required to start. Without one you run as a guest: every tool is callable, capped at 5 domain searches, 5 WHOIS lookups and 5 DNS lookups per day. Filters are ignored at that tier and paging stops after 2 pages of 10, so a search returns the newest unfiltered results across every gTLD. It is enough to see what the data looks like.

Registering is free and changes what you can ask. A free Member account turns on the filters that make a search a question rather than a sample (restrict to a gTLD, choose where the keyword sits in the name, pick the expiry stage) and raises the daily search quota from 5 to 30, with 10 pages instead of 2.

Paid tiers widen the same axes. Lite ($24.99/mo) adds character-set, length, registry-hold and sort filters, 300 searches a day and 50 pages. Premium ($99.99/mo) unlocks every filter the API supports, 2,000 searches a day and 400 pages. Platinum removes the daily and paging caps.

Current pricing: domainkits.com/pricing.

To use a key, add it to the env block:

{
  "mcpServers": {
    "domainkits": {
      "command": "npx",
      "args": ["-y", "@domainkits/mcp"],
      "env": {
        "DOMAINKITS_API_KEY": "dk_xxxxxxxxxxxxxxxx"
      }
    }
  }
}

Keys come from domainkits.com and work across every DomainKits surface: this MCP server, the REST API, and the n8n node. The key is never written to disk by this package.

Call the usage tool at any time for your current tier and remaining quota on every endpoint.

Tools

28 tools, grouped by what they answer:

Group	Tools
Domain lifecycle	expired, deleted, nrds, aged, active
Availability	available, bulk_available, bulk_tld, tld_check
Records	dns, whois, ns_reverse, domain_changes
Market	market, market_price, price
Research	keyword_data, keywords_trends, tld_rank, tld_trends, backlink_summary, unregistered_ai
Risk	safety, typosquat
Account	usage, monitor, preferences, strategy

Each tool ships its own input and output schema, so the client knows what arguments are valid before calling. Run usage to see your account's quota for every endpoint.

Stateful tools and what they store

Search and lookup tools are stateless: nothing you ask is retained. Three tools do store data across sessions, by design:

Tool	What it stores
monitor	The domains you watch and the results of each check
preferences	Your saved preferences and the memory switch
strategy	Strategy text you wrote, run timestamps and the most recent result

Storage is opt-in. Memory is off by default and must be enabled through preferences before monitor or strategy will accept anything. Stored data is encrypted at rest (AES-256-GCM) in isolated per-user directories, persists across MCP clients under the same account, and can be deleted in full at any time with preferences action: delete (GDPR Article 17).

Full details: Privacy Policy | Terms of Service

Coverage

gTLDs only for the domain search tools. The index covers generic TLDs: .com, .net, .org, .info, .biz, .xyz, .online, .site, .top, .club, .live, .app, .dev and others. Country-code TLDs are not indexed: a query for .de, .io, .co or .us returns an empty result set, not an error.

No PII. Responses contain no personal data. WHOIS results are limited to registrar, dates, status codes and nameservers; registrant names, emails, addresses and phone numbers are not returned.

Scale, measured on 27 July 2026 by browsing .com with no other filter:

Stage	.com domains
Expired	1,597,469
Redemption	2,754,494
Pending delete	495,650

Counts move daily as names progress through the lifecycle and drop.

What this package does

It is a stdio transport for the hosted DomainKits MCP endpoint. Tool definitions, filtering and rate limiting all live server-side, so the tool list stays current without republishing this package.

If your client supports remote MCP over HTTP, you can skip this package and connect to the endpoint directly, see the API reference.

Configuration

Variable	Default	Purpose
DOMAINKITS_API_KEY	(none)	Optional. Without it you run as a guest.
DOMAINKITS_MCP_URL	https://api.domainkits.com/v1/mcp	Override the endpoint.

Rate limits

Three things scale with your tier: how often you can ask, how precisely you can ask, and how deep you can read. Figures below are for the domain search tools (expired, nrds, deleted, aged, active, market, unregistered_ai, domain_changes).

Tier	Searches/day	Per min	Pages	Filters
Guest (no key)	5	2	2	none
Member (free)	30	10	10	TLD, keyword position, expiry stage
Lite	300	20	50	the above, plus character set, length, registry hold, sort
Premium	2,000	60	400	all
Platinum	unlimited	unlimited	unlimited	all

Pages are 10 results each, so Guest sees at most 20 matches per search and Premium 4,000.

Other tool groups have their own quotas: monitor, preferences, strategy and usage are unmetered on every tier. Call usage for the full picture on your account. Daily quotas reset at 00:00 UTC.

Resources

• DomainKits API reference
• n8n community node, same API, same key
• About DomainKits and ABTdomain
• ABTdomain
• Model Context Protocol
• Privacy Policy
• Terms of Service

License

MIT