"Free and open-source GPS without an API" matching MCP connectors:

Scan/purge hidden text & score web domains: TLS, DNS, headers, speed. Free scans, $0.01 actions.

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.

Scan and fix email auth (SPF, DMARC, DKIM, MX, blacklists, expiry) + DNS checks. Validated fixes.

Control Plane (controlplane.com): deploy and operate workloads across AWS, GCP, Azure, and more.

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

Live DNS, email-auth and redirect checks, HTTP security headers, uptime history, PC hardware prices.

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

Read-only IT Health Check, domain security, recommendations, pricing, and draft enquiries.

Free, keyless domain registration lookup via RDAP: registered, available, registrar, expiration.

Query WHOIS/RDAP information for domains, IP addresses, CIDR prefixes and ASNs. Self-hostable.

Domain/IP intelligence, web page capture and search APIs

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

Free SPF, DKIM, DMARC, MX deliverability check with graded shareable reports, plus referral terms

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.

Internet censorship and website reachability: OONI network measurements, keyless