{
  "markdown": "# CatchDoms — Expired Domains API & MCP Server\n\nCatchDoms exposes an **Expired Domains API** and an **MCP (Model Context Protocol) server** that aggregate expired domains from **16 auction platforms** (Dynadot, GoDaddy, DropCatch, SnapNames, Catched, Gname, BloomUp, UKBackorder, DomainLore, and 7 more) plus **100,000+ aged ccTLD domains** available at registration price. Every domain is enriched with Trust Flow, Citation Flow, Domain Authority, backlinks count, referring domains, and Wayback history.\n\nUse the **REST API** to integrate expired domain data into your tools, scripts, or pipelines. Use the **MCP server** to let Claude, Cursor, Windsurf, or any MCP-compatible AI assistant search expired domains conversationally — find drop-catches, check auction prices, and surface high-value aged domains programmatically.\n\n## Quick Start (Free — no API key needed)\n\nTry it instantly — no signup required:\n\n```json\n{\n  \"mcpServers\": {\n    \"catchdoms\": {\n      \"url\": \"https://catchdoms.com/mcp/catchdoms/free\",\n      \"transport\": \"sse\"\n    }\n  }\n}\n```\n\n**Free tier includes:** Top 50 domains per search, first 10 names visible, basic SEO metrics. Trust Flow, Citation Flow, and GMB detection require Pro.\n\n### Pro (full access)\n\n```json\n{\n  \"mcpServers\": {\n    \"catchdoms\": {\n      \"url\": \"https://catchdoms.com/mcp/catchdoms\",\n      \"transport\": \"sse\",\n      \"headers\": {\n        \"Authorization\": \"Bearer YOUR_API_KEY\"\n      }\n    }\n  }\n}\n```\n\n**Get your API key:** [Sign up for free](https://catchdoms.com/register) → [API Settings](https://catchdoms.com/api-access) → [See pricing](https://catchdoms.com/pricing)\n\n| Feature | Free | Pro | Authority |\n|---------|------|-----|-----------|\n| Domains per search | 50 | Unlimited | Unlimited |\n| Visible domain names | 10 | All | All |\n| Trust Flow / Citation Flow | Hidden | Yes | Yes |\n| GMB detection | Hidden | Yes | Yes |\n| `get_domain` tool | No | Yes | Yes |\n| Aged domains (regfee, 100k+) | No | No | Yes |\n| Rate limit | 3 req/min | 15 req/min | 60 req/min |\n\n## Tools\n\n### `search_domains`\n\nSearch for domains with filters. Returns up to 100 results sorted by quality.\n\n**Parameters:**\n\n| Parameter | Type | Description |\n|-----------|------|-------------|\n| `source` | string | Filter by platform: `dynadot`, `catched`, `dropcatch`, `godaddy`, `gname`, `snapnames`, `ukdroplists`, `subreg`, `webexpire`, `parkio`, `bloomup`, `seodomains`, `nameshift`, `nicsell`, `gnews-domains`, `backorders-domains`, `regfree` (Authority only) |\n| `tld` | string | Filter by TLD (`.com`, `.fr`, `.de`). Comma-separated for multiple. |\n| `score_min` | integer | Minimum quality score (0-100). 50+ = good, 70+ = excellent. |\n| `age_min` | integer | Minimum domain age in years (Wayback first snapshot). |\n| `language` | string | Detected language code (`EN`, `FR`, `DE`, `ES`, etc.). |\n| `contains` | string | Keyword the domain name must contain. |\n| `has_bids` | boolean | Only domains with active auction bids. |\n| `has_backlinks` | boolean | Only domains with referring domains. |\n| `has_gmb` | boolean | Only domains with a Google Business listing. |\n| `has_edu_gov` | boolean | Only domains with .edu or .gov backlinks. |\n| `da_min` | integer | Minimum Domain Authority (0-100). |\n| `rd_min` | integer | Minimum referring domains count. |\n| `tf_min` | integer | Minimum Trust Flow (0-100). |\n| `cf_min` | integer | Minimum Citation Flow (0-100). |\n| `categories` | string | TTF topic categories, comma-separated (e.g., `Business,Health`). |\n| `price_min` | number | Minimum price/bid (USD). |\n| `price_max` | number | Maximum price/bid (USD). |\n| `snapshots_min` | integer | Minimum Wayback Machine snapshots. |\n| `limit` | integer | Results to return (1-100, default 50). |\n\n**Example prompt:**\n> Find me French .fr domains with a quality score above 50, at least 10 years old, under $500\n\n### `get_domain`\n\nGet full details for a specific domain.\n\n| Parameter | Type | Description |\n|-----------|------|-------------|\n| `domain_id` | integer | Domain ID |\n| `domain_name` | string | Domain name (e.g., `example.com`) |\n\n### `list_filters`\n\nGet available filter options with counts — sources, TLDs, and languages.\n\n*No parameters.*\n\n### `get_stats`\n\nGet platform statistics — total domains, new today, by source, SEO coverage.\n\n*No parameters.*\n\n## Domain Sources\n\n16 auction & marketplace sources, refreshed daily:\n\n| Source | Type |\n|--------|------|\n| **Dynadot** | Closeouts (fixed $5-$30) + auctions |\n| **GoDaddy** | Expiring auctions + closeouts |\n| **DropCatch** | Auctions (Dropped, Pre-Release) |\n| **Catched** | Auctions + backorder |\n| **Gname** | Auctions + buy now |\n| **SnapNames** | Pre-release + closeout |\n| **UK Backorder** | UK dropping/expired |\n| **Subreg** | Expiring auctions |\n| **WebExpire** | French .fr auctions |\n| **Park.io** | Premium auctions |\n| **BloomUp** | French .fr auctions + buy now |\n| **SEO.Domains** | Buy now with SEO metrics |\n| **NameShift** | Premium buy-now / make offer |\n| **Nicsell** | European ccTLD auctions (top-auktionen) |\n| **Gnews Domains** | Hand-curated premium news domains, buy-now |\n| **Backorders Domains** | Niche ccTLD auctions (.ie, .si, .paris, .tw, .ph, .mx…) |\n\n### Authority-only: Regfee Database\n\n100k+ aged ccTLD domains across 60+ TLDs (.fr, .de, .it, .co.uk, .nl, .id, .kz and dozens more) **available at registration price**. No auction, no bidding war. Same SEO enrichment (TF/CF/DA/backlinks/Wayback) on every entry. Use `source=regfree` from the MCP `search_domains` tool with an Authority API key.\n\n## SEO Metrics\n\nEvery domain is enriched with:\n\n- **Quality Score** (0-100) — composite score based on age, authority, backlinks, name quality\n- **Domain Authority** (0-100) — from DataForSEO\n- **Trust Flow / Citation Flow** (0-100) — from Majestic via SEObserver\n- **TTF Topic** — topical category (e.g., `Business/Marketing`)\n- **Referring Domains** — unique linking domains count\n- **Backlinks** — total backlink count\n- **PageRank** (0-10) — Open PageRank\n- **Domain Age** — from Wayback Machine first snapshot\n- **Language** — detected from archived content\n- **Google Business** — GMB listing detection\n\n## Response Format\n\nEach domain includes:\n\n```json\n{\n  \"id\": 12345,\n  \"name\": \"example.fr\",\n  \"tld\": \".fr\",\n  \"source\": \"webexpire\",\n  \"type\": \"auction\",\n  \"score\": 72,\n  \"price\": 150.00,\n  \"max_bid\": 210.00,\n  \"bids_count\": 4,\n  \"auction_end_date\": \"2026-04-07T15:00:00+00:00\",\n  \"age\": 19,\n  \"domain_authority\": 28,\n  \"trust_flow\": 22,\n  \"citation_flow\": 16,\n  \"ttf_topic\": \"Business/Marketing\",\n  \"referring_domains\": 216,\n  \"backlinks_count\": 2000,\n  \"language\": \"FR\",\n  \"has_gmb\": false,\n  \"purchase_url\": \"https://www.webexpire.com/...\",\n  \"purchase_platform\": \"WebExpire\"\n}\n```\n\n## REST API\n\nCatchDoms also offers a REST API at `https://catchdoms.com/api/domains`. [Full documentation](https://catchdoms.com/api/docs).\n\n## Links\n\n- **Website:** [catchdoms.com](https://catchdoms.com)\n- **API Docs:** [catchdoms.com/api/docs](https://catchdoms.com/api/docs)\n- **Pricing:** [catchdoms.com/pricing](https://catchdoms.com/pricing)\n\n## License\n\nMIT\n",
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