Find Expired Domains

Find Expired Domains

This skill turns your agent into an expired-domain prospector. It connects to CatchDoms, a platform that aggregates expired, dropping, and auction domains from 19+ registrars and enriches each one with SEO metrics, then lets you search and qualify them in natural language.

When to use this skill

Use it whenever the user wants to:

• Find expired / aged domains for SEO (money sites, niche sites, affiliate, PBN)
• Drop-catch a deleted domain or back-order an expiring one
• Evaluate a specific domain's authority and backlink profile before bidding
• Compare auction listings (current bid, end time, platform) across registrars
• Find domains in a niche (by keyword, TTF topic category, or language)
• Find aged domains in a specific TLD (.com, .fr, .de, .co.uk, …)

How it works — connect the MCP server first

CatchDoms exposes its data over the Model Context Protocol (MCP). There are two endpoints. Start with the free one; it needs no account.

Free tier (no auth — recommended starting point)

• URL: https://catchdoms.com/mcp/catchdoms/free
• Transport: HTTP (streamable)
• Returns the top 50 domains per search. The first 10 domain names are shown in

full; the rest are masked. Premium metrics (Trust Flow, Citation Flow, TTF topic, GMB) are hidden behind a free signup.

• Rate limit: 3 requests/min.

Add it to Claude Code:

claude mcp add --transport http catchdoms https://catchdoms.com/mcp/catchdoms/free

Or in ~/.claude.json / claude_desktop_config.json:

{
  "mcpServers": {
    "catchdoms": {
      "type": "http",
      "url": "https://catchdoms.com/mcp/catchdoms/free"
    }
  }
}

For Claude Desktop (needs Node for the remote bridge):

{
  "mcpServers": {
    "catchdoms": {
      "command": "npx",
      "args": ["mcp-remote", "https://catchdoms.com/mcp/catchdoms/free"]
    }
  }
}

Pro tier (full access — Bearer token)

For all domain names, full metrics (TF/CF, GMB, TTF topic), 80K+ aged registrable ccTLD domains, and unlimited results, use the authenticated endpoint with a CatchDoms Pro API token:

• URL: https://catchdoms.com/mcp/catchdoms
• Header: Authorization: Bearer
• Get a token at https://catchdoms.com/pricing

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

> If the MCP server is connected, prefer its tools over scraping or guessing. > If it is not connected, tell the user to add it (commands above) before > you can return live data — do not invent domain metrics.

Tools available on the server

| Tool | What it does | |------|--------------| | search_domains | Search/filter domains. Returns them ranked by quality and auction interest. | | get_domain | Get full details for one domain by id or name (Pro endpoint). | | list_filters | List available sources, TLDs, and languages with counts. | | get_stats | Platform stats: total domains, new today, breakdown by source. |

search_domains filters

Pass only the filters that matter; everything is optional and AND-combined.

• source — one of: dynadot, catched, dropcatch, godaddy, gname,

snapnames, ukdroplists, subreg, webexpire, parkio, bloomup, seodomains, nameshift, namesilo, nicsell, gnews-domains, backorders-domains, domainlore, rakkodomain, namepros, regfree (regfree = deleted/registrable ccTLD domains, Pro only).

• tld — e.g. .com or .fr; comma-separated for several (.fr,.de,.it).
• score_min — quality score 0-100. Use 30+ decent, 50+ good, 70+ excellent.
• age_min — minimum age in years (first Wayback snapshot).
• type — auction, closeout, or backorder.
• has_bids — true to keep only domains with live bids (market interest).
• has_backlinks — true to require referring domains (SEO value).
• da_min — minimum Domain Authority (0-100).
• rd_min — minimum referring domains.
• tf_min / cf_min — minimum Trust Flow / Citation Flow (Pro tier).
• has_edu_gov — true to require .edu/.gov referring domains.
• categories — comma-separated TTF topic categories (Business,Health).
• language — detected content language code (EN, FR, DE, ES, …).
• contains — keyword in the domain name; comma list = OR (shop,store).
• price_min / price_max — bid/price bounds in USD.
• snapshots_min — minimum Wayback snapshots.
• techs — historical tech stack labels, OR semantic (WordPress, Shopify,Stripe).
• limit — 1-100 (free tier capped at 50).

How to qualify a domain (the part that matters)

Raw metrics lie. Walk the user through real quality, not just a high DA:

1. Backlink quality over quantity. 50 real editorial referring domains beat

5,000 spam links. Check referring_domains, da_min, and whether links are topical. has_edu_gov=true is a strong trust signal.

1. Trust Flow vs Citation Flow. A healthy ratio (TF/CF) above ~0.5 means the

link profile is trusted, not just large. Low TF with high CF = link spam.

1. Age and history. age_min + snapshots_min confirm the domain actually

had a real site, not a parked shell. Cross-check on the Wayback Machine.

1. Topical match. Use categories (TTF topic) and language so the domain's

history matches the user's project niche — relevance compounds authority.

1. Clean name. Prefer no hyphens/numbers (already filtered out at import on

most sources), pronounceable, brandable for a money site.

1. Auction economics. For auctions, weigh current bid (price_min/max,

has_bids) against the value of the link profile and the auction end time.

1. Spam check. Be wary of gambling/pharma/adult keywords, foreign-language

spam history, and link networks. A high score with a spammy niche is a trap.

Always recommend the user verify backlinks independently (Ahrefs/Majestic) and check the Wayback Machine before spending real money.

Example interactions

"Find me aged French domains with good backlinks under $100."

search_domains(tld=".fr", age_min=10, has_backlinks=true, price_max=100, score_min=50)

"Any WordPress sites in the health niche with edu/gov links?"

search_domains(techs="WordPress", categories="Health", has_edu_gov=true, score_min=50)

"What's currently up for auction on DropCatch with bids and DA 30+?"

search_domains(source="dropcatch", type="auction", has_bids=true, da_min=30)

"Show me the strongest .com closeouts right now."

search_domains(tld=".com", type="closeout", score_min=70, limit=50)

After returning results, summarize the top 3-5 picks with their key metrics and a one-line rationale, then point the user to the listing on CatchDoms to bid/buy.

Notes & limits

• Free tier: top 50 results, first 10 names visible, premium metrics masked,

3 req/min. Sign up free at https://catchdoms.com/register to unlock more.

• regfree (deleted registrable ccTLD domains) requires a Pro/Authority plan.
• Domains with hyphens and numbers are excluded at import on most sources.
• This skill reads live data only; it does not place bids or buy domains. Send

the user to the registrar via the listing link to complete a purchase.

About CatchDoms

CatchDoms tracks expired and auction domains from 19+ registrars and enriches them with Wayback age, DataForSEO (DA/backlinks/referring domains), SEObserver (TF/CF/TTF), language detection, and a 0-100 quality score. Learn more at https://catchdoms.com.

Source & license

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

• Author: Sambel
• Source: Sambel/expired-domains-skill
• License: MIT
• Homepage: https://catchdoms.com/mcp

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