"A tool for real-time error detection in web browsers" matching MCP connectors:

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

Email posture for any domain: can it receive mail, can it be spoofed? MX, SPF and DMARC.

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

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

Normalized JSON for any domain across 1,200+ TLDs. The modern WHOIS replacement.

DNS and email security scanner with 76 MCP tools for SPF, DMARC, DNSSEC, SSL, and brand audits.

Stateful WebSocket session registry with per-connection Shannon entropy delta tracking for schema di

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

Domain/IP intelligence, web page capture and search APIs

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.

IP Lookup MCP — ip-api.com (free, no auth for basic usage)

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

IPInfo MCP — wraps ipinfo.io (free tier, no auth required for basic usage)

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

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