"Exploring Gemini Services or Tools That Don’t Require an API Key" matching MCP connectors:

Live censorship, China economic, and tamper-evident AI evaluation tools with bounded analysis.

Dedicated static outbound IPv4 over WireGuard. Free 7-day trial, no card, no sales call.

Calculates IPv4 subnet information from an IP address and CIDR prefix or dotted decimal subnet mask

DNS and email security scanner with 80 MCP tools for SPF, DMARC, DNSSEC, SSL, and brand audits.

Check whether AI agents can discover, validate, and trust your domain's services.

Free uptime monitoring: HTTP/TCP/TLS/DNS checks, cron heartbeats, status pages, incident tools.

Custom domains API for SaaS: connect, verify, and manage customer domains, SSL, and DNS

Free no-key IP intelligence: geolocation, VPN detection, DNS, WHOIS, blacklists, breach checks

Monitoring for agencies — uptime, SSL, DNS, blocklists, AI visibility, MCP health. 8 no-auth tools.

Domain reputation over time: Domain Rating, Tranco rank, TLS, and AI crawler policy.

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

DNS, WHOIS/RDAP, DMARC/SPF, LEI, sitemap, web extract, VAT, QR. Paid per call in USDC, no signup.

GreyNoise Community MCP — internet scanner classification (free tier with key)

SecurityTrails MCP — wraps SecurityTrails API (securitytrails.com)

Shodan MCP — wraps the full Shodan REST API (api.shodan.io)

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

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

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

Internet identity for AI agents: register or broker domains, email, DNS - pay by card or USDC.

Domain attribution and correlation for AI agents, with confidence and per-signal evidence.