"Creating a tool to replicate NowCerts API functionality" matching MCP connectors:
Matching Connector Tools:
Watch domains and forecast when they drop; check a name's domain, handles, and trademark.
Domain attribution and correlation for AI agents, with confidence and per-signal evidence.
Custom domains API for SaaS: connect, verify, and manage customer domains, SSL, and DNS
Validate Cốc Cốc Bot IP addresses. Remote MCP validate_ip tool.
Validate PerplexityBot IP addresses. Remote MCP validate_ip tool.
Validate Yahoo! Slurp IP addresses. Remote MCP validate_ip tool.
Validate whether an IP address belongs to YandexBot. Remote MCP server exposing a validate_ip tool.
Validate whether an IP address belongs to Applebot. Remote MCP server exposing a validate_ip tool.
Validate Naver Yeti IP addresses. Remote MCP validate_ip tool.
Live internet-censorship signals: Great Firewall reachability, model-layer censorship, takedowns.
Validate Baiduspider IP addresses. Remote MCP validate_ip tool.
Validate whether an IP address belongs to Googlebot. Remote MCP server exposing a validate_ip tool.
Validate Meta-ExternalAgent and Meta-WebIndexer IP addresses. Remote MCP validate_ip tool.
Validate whether an IP address belongs to Bingbot. Remote MCP server exposing a validate_ip tool.
Validate ClaudeBot and Claude-SearchBot IP addresses. Remote MCP validate_ip tool.
Check email deliverability for a domain: MX, SPF, DKIM, DMARC, blacklists. Graded, no key.
Scan the open TCP ports of your own public IP. Fast (32) or deep (65535). No key, no signup.
SecurityTrails MCP — wraps SecurityTrails API (securitytrails.com)
What's My IP Address: caller's public IP, ASN, geo, timezone, user-agent, headers, TLS info.
Shodan MCP — wraps the full Shodan REST API (api.shodan.io)