"Web search without requiring an API key" matching MCP connectors:

Live internet-censorship signals: Great Firewall reachability, model-layer censorship, takedowns.

Domain & company intel for AI agents: RDAP, DNS, email deliverability, tech stack. No API keys.

The web capability layer for AI agents: render, extract, DNS, SSL, WHOIS & more via x402.

DNS, RDAP, LEI/KYB, DMARC/SPF, sitemaps, web extraction, VAT, QR. Paid per call in USDC.

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 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.

Agent-native web hosting — deploy sites, manage DNS, register domains, scale infrastructure

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.

DMCA takedown & host reveal for AI agents: who hosts an infringing URL, even behind Cloudflare.

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)

AbuseIPDB MCP — wraps AbuseIPDB v2 API (api.abuseipdb.com/api/v2)

AI data-center design engine: size, validate & lay out Rubin-era data centers. Korea live.

Explore FCC ULS licenses, ASR antenna structures, and microwave path elevation profiles.

OpenCellID MCP — cell tower geolocation database (free with key)