The full upstream README, mirrored here for reference. Install config, tool schemas, adoption signals, and an original overview live on the Seo Backlinks listing page.
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.
Ask Claude:
Claude will use this MCP server to query the seo-backlinks API and give you the answer inline.
| 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) |
Add to your claude_desktop_config.json:
Config file location:
~/Library/Application Support/Claude/claude_desktop_config.json%APPDATA%\Claude\claude_desktop_config.json~/.config/Claude/claude_desktop_config.jsonGet 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.
Same idea — add to your MCP settings. Point to the npx -y seo-backlinks-mcp command with SEO_BACKLINKS_API_KEY env var.
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)The MCP server is MIT-licensed and free. The underlying seo-backlinks.net service:
MIT