Documents

DomainKits - Domain Name Data and Intelligence

Try it

Query domain availability, WHOIS, DNS, and registration trends across the full domain lifecycle through an MCP server.

What it does

DomainKits is an MCP server that lets an AI query domain data directly. Search tools cover newly registered, aged, expired, deleted, active, and marketplace domains, plus typosquat permutations and nameserver lookups. Lookup tools return availability with pricing, WHOIS/RDAP, DNS records, Safe Browsing status, cross-TLD availability, keyword data, and backlink summaries. Trend tools surface hot keywords and TLD registration patterns. Bulk tools check up to 50 domains at once. Stateful tools save preferences, monitor domains for changes, and store analysis strategies. Connects to Claude Code, Claude.ai, Cursor, and other MCP clients.

When to use it

  • Find available domain names for a new project
  • Investigate a domain's WHOIS history and current DNS
  • Monitor a portfolio of domains for WHOIS, DNS, or page changes
  • Spot trending keywords and TLD patterns in new registrations

The skill document

Why DomainKits?

With DomainKits MCP your AI can:

  • Data-driven actions -- See what's registering now, what's expiring tomorrow, what just dropped
  • Make informed decisions -- Analyze keyword value, brand risk, and safety in seconds
  • Execute instantly -- From idea to available domain with pricing in seconds

Setup

Claude Code

claude mcp add domainkits https://api.domainkits.com/v1/mcp

With API key (for higher limits):

claude mcp add domainkits https://api.domainkits.com/v1/mcp --header "X-API-Key: YOUR_KEY"

Claude.ai

Connect DomainKits via Settings > Connectors. No manual configuration needed.

Cursor / Other MCP Clients

Add to your MCP config:

{
  "mcpServers": {
    "domainkits": {
      "url": "https://api.domainkits.com/v1/mcp"
    }
  }
}

With API key:

{
  "mcpServers": {
    "domainkits": {
      "url": "https://api.domainkits.com/v1/mcp",
      "headers": {
        "X-API-Key": "YOUR_KEY"
      }
    }
  }
}

Tools

  • nrds -- Newly registered domains, by keyword or browse a gTLD
  • aged -- Domains with 5-20+ years history
  • expired -- Domains entering deletion cycle, by keyword or browse a gTLD
  • deleted -- Just-dropped domains, available now
  • active -- Live registered domains (~240M gTLD database)
  • market -- Domains with marketplace listing data, by keyword or browse a gTLD
  • ns_reverse -- Domains on a specific nameserver
  • unregistered_ai -- Unregistered short .ai domains (3-letter, pattern-based)
  • domain_changes -- Domain change detection across 4M+ monitored domains
  • typosquat -- Generate typosquat permutations and check which variants are registered

Lookup

  • available -- Single-domain availability with pricing
  • dns -- DNS records (A, AAAA, MX, NS, TXT, SOA)
  • whois -- WHOIS/RDAP registration data
  • safety -- Google Safe Browsing status (requires account)
  • tld_check -- Keyword availability across TLDs
  • keyword_data -- Google Ads keyword data (requires account)
  • price -- Registration and renewal prices by TLD
  • market_price -- Secondary market listing prices
  • backlink_summary -- SEO backlink profile (requires account)
  • keywords_trends -- Hot, emerging, and prefix keywords in domain registrations
  • tld_trends -- Historical registration trends by TLD
  • tld_rank -- TLD rankings by registration volume

Bulk

  • bulk_tld -- Keyword popularity across TLDs
  • bulk_available -- Batch availability check (up to 50 domains)

Stateful (require memory)

  • preferences -- Manage memory and saved preferences (action: get/set/delete)
  • monitor -- Domain monitoring with WHOIS/DNS/page change checks (action: get/set/update/delete)
  • strategy -- Store user-authored strategy text, run timestamps and the most recent result (action: get/set/update/delete)
  • usage -- Current tier, per-group usage, and remaining quota

Skills

DomainKits MCP serves raw data. For domain industry workflows (naming consultation, competitive analysis, keyword intelligence, expired domain due diligence, and more), see DomainKits Skills, an open-source collection of workflow prompts that any AI assistant can use on top of this data.

Instructions

When user wants domain suggestions:

  1. Brainstorm names based on keywords
  2. Call bulk_available to validate
  3. Show available options with prices

When user wants to analyze a domain:

  1. Call whois, dns, safety
  2. Give a clear verdict

Output rules:

  • Default to no_hyphen=true and no_number=true
  • Use usage to check remaining quota before heavy operations

Access Tiers

GuestMember (free)PremiumPlatinum
Search tools5/min, 10/day20/min, 2000/day60/min, 2000/dayUnlimited
Lookup tools5/min, 10/dayVaries20-50/minUnlimited or high cap
Trend tools5/min, 10/day10/min, 100/dayUnlimitedUnlimited
Bulk tools5/min, 10/day5/min, 50/day8/min, 1000/dayUnlimited
Safety, Backlinks, KeywordsBlockedLimitedLimitedHigh cap or unlimited
Monitors--550Unlimited
Strategies--16Unlimited

Register free at domainkits.com. View pricing.

Privacy

  • Works without API key (guest access)
  • Memory OFF by default, requires explicit consent
  • All stored data encrypted at rest (AES-256-GCM)
  • GDPR compliant, delete data anytime via preferences with action: delete

Questions people ask

Do I need an API key?
No. The server works as a guest without a key, with most tools capped at 5 requests/min and 10/day. A free member account raises those limits; higher tiers (Premium, Platinum) add more.
What data sources does it use?
The docs name Google Safe Browsing for safety, Google Ads for keyword data, and a roughly 240M gTLD database for active-domain lookups. WHOIS and DNS come from standard protocol data; other upstream providers are not specified.
Is any of my data stored?
Memory is off by default and only enabled with explicit consent. Stored data is encrypted at rest with AES-256-GCM, and the docs state GDPR compliance with deletion available through the preferences tool.
Can it produce ready-to-register domain names?
It can brainstorm names from keywords and validate them with bulk_available (up to 50 at once), returning prices for available options. Higher-level naming and due-diligence workflows live in the companion DomainKits Skills repository on GitHub.

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