CatchDoms MCP Server

MCP (Model Context Protocol) server for CatchDoms — search 40,000+ expired and auction domains from 12 platforms, enriched with SEO metrics.

Use this server to let AI assistants (Claude, Cursor, Windsurf, etc.) search for expired domains, check auction prices, and find high-value domains programmatically.

Quick Start (Free — no API key needed)

Try it instantly — no signup required:

{
  "mcpServers": {
    "catchdoms": {
      "url": "https://catchdoms.com/mcp/catchdoms/free",
      "transport": "sse"
    }
  }
}

Free tier includes: Top 50 domains per search, first 10 names visible, basic SEO metrics. Trust Flow, Citation Flow, and GMB detection require Pro.

Pro (full access)

{
  "mcpServers": {
    "catchdoms": {
      "url": "https://catchdoms.com/mcp/catchdoms",
      "transport": "sse",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

Get your API key: Sign up for free → API Settings → See pricing

Feature	Free	Pro
Domains per search	50	Unlimited
Visible domain names	10	All
Trust Flow / Citation Flow	Hidden	Yes
GMB detection	Hidden	Yes
get_domain tool	No	Yes
Rate limit	3 req/min	15 req/min

Tools

`search_domains`

Search for domains with filters. Returns up to 100 results sorted by quality.

Parameters:

Parameter	Type	Description
`source`	string	Filter by platform: `dynadot`, `catched`, `dropcatch`, `godaddy`, `gname`, `snapnames`, `ukdroplists`, `subreg`, `webexpire`, `parkio`, `bloomup`, `seodomains`
`tld`	string	Filter by TLD (`.com`, `.fr`, `.de`). Comma-separated for multiple.
`score_min`	integer	Minimum quality score (0-100). 50+ = good, 70+ = excellent.
`age_min`	integer	Minimum domain age in years (Wayback first snapshot).
`language`	string	Detected language code (`EN`, `FR`, `DE`, `ES`, etc.).
`contains`	string	Keyword the domain name must contain.
`has_bids`	boolean	Only domains with active auction bids.
`has_backlinks`	boolean	Only domains with referring domains.
`has_gmb`	boolean	Only domains with a Google Business listing.
`has_edu_gov`	boolean	Only domains with .edu or .gov backlinks.
`da_min`	integer	Minimum Domain Authority (0-100).
`rd_min`	integer	Minimum referring domains count.
`tf_min`	integer	Minimum Trust Flow (0-100).
`cf_min`	integer	Minimum Citation Flow (0-100).
`categories`	string	TTF topic categories, comma-separated (e.g., `Business,Health`).
`price_min`	number	Minimum price/bid (USD).
`price_max`	number	Maximum price/bid (USD).
`snapshots_min`	integer	Minimum Wayback Machine snapshots.
`limit`	integer	Results to return (1-100, default 50).

Example prompt:

Find me French .fr domains with a quality score above 50, at least 10 years old, under $500

`get_domain`

Get full details for a specific domain.

Parameter	Type	Description
`domain_id`	integer	Domain ID
`domain_name`	string	Domain name (e.g., `example.com`)

`list_filters`

Get available filter options with counts — sources, TLDs, and languages.

No parameters.

`get_stats`

Get platform statistics — total domains, new today, by source, SEO coverage.

No parameters.

Domain Sources

Source	Type	Domains
Dynadot	Closeouts (fixed $5-$30)	~13K
GoDaddy	Expiring auctions + closeouts	~10K
DropCatch	Auctions (Dropped, Pre-Release)	~9.6K
Catched	Auctions + backorder	~3.5K
Gname	Auctions + buy now	~2K
SnapNames	Pre-release + closeout	~1K
UK Droplists	UK dropping/expired	~2K
Subreg	Expiring auctions	~500
WebExpire	French .fr auctions	~500
Park.io	Premium auctions	~30
BloomUp	French .fr auctions + buy now	~600
SEO.Domains	Buy now with SEO metrics	~59K

SEO Metrics

Every domain is enriched with:

Quality Score (0-100) — composite score based on age, authority, backlinks, name quality
Domain Authority (0-100) — from DataForSEO
Trust Flow / Citation Flow (0-100) — from Majestic via SEObserver
TTF Topic — topical category (e.g., Business/Marketing)
Referring Domains — unique linking domains count
Backlinks — total backlink count
PageRank (0-10) — Open PageRank
Domain Age — from Wayback Machine first snapshot
Language — detected from archived content
Google Business — GMB listing detection

Response Format

Each domain includes:

{
  "id": 12345,
  "name": "example.fr",
  "tld": ".fr",
  "source": "webexpire",
  "type": "auction",
  "score": 72,
  "price": 150.00,
  "max_bid": 210.00,
  "bids_count": 4,
  "auction_end_date": "2026-04-07T15:00:00+00:00",
  "age": 19,
  "domain_authority": 28,
  "trust_flow": 22,
  "citation_flow": 16,
  "ttf_topic": "Business/Marketing",
  "referring_domains": 216,
  "backlinks_count": 2000,
  "language": "FR",
  "has_gmb": false,
  "purchase_url": "https://www.webexpire.com/...",
  "purchase_platform": "WebExpire"
}

REST API

CatchDoms also offers a REST API at https://catchdoms.com/api/domains. Full documentation.

License

MIT

CatchDoms — Expired Domains API