seo-backlinks MCP Server

MCP server that lets Claude, Cursor, Windsurf, Cline, and other AI agents check backlinks, domain rating, and expired-domain drops directly via seo-backlinks.net.

Built on Common Crawl data — 4.3B backlinks indexed, 262M hosts ranked.

What it does

Ask Claude:

• "What's the Domain Rating of nytimes.com?"
• "Show me the top 10 sites linking to stripe.com"
• "List today's expired domains with backlinks under $50 potential"
• "Compare backlink profiles of ahrefs.com vs semrush.com"

Claude will use this MCP server to query the seo-backlinks API and give you the answer inline.

Tools

Tool	What it does
check_domain	Get DR (0-100), rank, and referring domains count for any domain
get_referring_domains	List sites that link TO a target (competitor research, outreach)
get_domain_info	Detailed metadata + structure for a domain
get_expired_domains	Today's freshly-expired domains that still have real backlinks
get_top_hosts	Top-ranked hosts across the web (from Common Crawl)

Install (Claude Desktop)

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "seo-backlinks": {
      "command": "npx",
      "args": ["-y", "seo-backlinks-mcp"],
      "env": {
        "SEO_BACKLINKS_API_KEY": "your_api_key_here"
      }
    }
  }
}

Config file location:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json
• Linux: ~/.config/Claude/claude_desktop_config.json

Get a free API key: seo-backlinks.net/sign-up (3 checks/day free, paid plans start at $29/mo with 7-day trial).

Restart Claude Desktop after editing config.

Install (Cursor / Windsurf / Cline)

Same idea — add to your MCP settings. Point to the npx -y seo-backlinks-mcp command with SEO_BACKLINKS_API_KEY env var.

Install (local dev)

git clone https://github.com/mouhabmzibra-rgb/mcp-seo-backlinks
cd mcp-seo-backlinks
npm install
npm run build
SEO_BACKLINKS_API_KEY=your_key node dist/index.js

Environment variables

• SEO_BACKLINKS_API_KEY — your API key (get free at seo-backlinks.net)
• SEO_BACKLINKS_API_BASE — override API endpoint (default https://api.seo-backlinks.net)

Pricing

The MCP server is MIT-licensed and free. The underlying seo-backlinks.net service:

• Free tier — 3 domain checks per day (no card)
• Starter — $29/mo, 1000 checks/mo, 7-day free trial
• Pro — $99/mo, 10,000 checks/mo + full API, 7-day free trial

Support

• Website: https://seo-backlinks.net
• Docs: https://seo-backlinks.net/docs
• Issues: https://github.com/mouhabmzibra-rgb/mcp-seo-backlinks/issues

License

MIT