"A server that supports Server-Sent Events (SSE)" matching MCP connectors:

Live DNS lookups for agents: A/MX/TXT/SPF/CNAME/PTR with TTLs and DNSSEC, via Google Public DNS.

DNS and email security: check SPF, DKIM, DMARC, DNSSEC, DANE and build the records. 45 tools.

Free anonymous website, DNS, email and TLS checks, plus read-only access to your monitors.

Vendor status pages, TLS cert inspection, DNS propagation checks, and incident-response playbooks.

Read devices, users, keys, ACLs and DNS for a tailnet; manage devices, routes and auth keys.

Watch domains and forecast when they drop; check a name's domain, handles, and trademark.

Validate whether an IP address belongs to Bingbot. Remote MCP server exposing a validate_ip tool.

Validate whether an IP address belongs to Applebot. Remote MCP server exposing a validate_ip tool.

MCP server for DNSimple — domains, DNS zone records, availability, pricing and contacts.

Remote MCP server: 19 domain-hygiene and email-auth tools (DNS, SPF, DMARC, DKIM, TLS).

Validate whether an IP address belongs to Googlebot. Remote MCP server exposing a validate_ip tool.

Check email deliverability for a domain: MX, SPF, DKIM, DMARC, blacklists. Graded, no key.

Site crawl + tech stack + DNS + SSL + WHOIS — five web-intel layers in one MCP.

WHOIS, DNS, SSL, IP geo for security forensics and OSINT — separate from SEO.

Cloudflare Workers MCP server: domain-intel

Provides capabilities that let LLM agents perform a range of infrastructure management tasks.

Public MCP server for summaries, DNS lookup, catalog, replies, and JSON checks.

The internet's largest queryable infrastructure graph — 7.39 billion nodes, 39 billion edges, 5.6 million threat-intelligence relationships. Pivot from any IP, domain, or ASN across DNS, BGP, WHOIS, GeoIP, and threat intel in a single Cypher query. Most threat-intel and OSINT APIs are point lookups: you ask about one indicator, you get one record. Investigations don't work that way — you start from one suspicious domain and need to trace its hosting, its sibling domains, its registrar, its email

Scan your home network and local machine for security risks, open ports, weak Wi-Fi, unknown devices. Providing with a trust score and clear explanations.

XFA's remote MCP server — query device posture, compliance, policies & CVEs. Read-only.