"MCP servers that don't require API keys" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
WHOIS, RDAP, DNS, IP / ASN / CIDR and Web3 name (ENS, Unstoppable, Handshake) lookups. No API key.
Connect custom domains via AI agents: DNS pre-flight checks, hand-off connect sessions and checks.
VPN, proxy, Tor, hosting and CDN detection for any IP address, from the VPNDetection API.
29 DNS, SEO, SSL, security, WHOIS & mail tools for AI agents. Pay per call (x402) or card API key.
Dedicated static outbound IPv4 over WireGuard. Free 7-day trial, no card, no sales call.
Read deSEC domains, DNSSEC keys, zone files and RRsets; create or replace one DNS record set.
DNS and email security: check SPF, DKIM, DMARC, DNSSEC, DANE and build the records. 45 tools.
Your servers, monitors, incidents, DNS, domains and certificates in InfraNest, in your AI assistant.
External checks of TLS, HTTP headers, email domain, DNS and ports, with cause and fix
Is it DNS? Audit a site or domain that isn't working: one call says if it resolves and why. No key.
Official Porkbun MCP server: domains, DNS, SSL, hosting and Cloudflare via the Porkbun API.
Read devices, users, keys, ACLs and DNS for a tailnet; manage devices, routes and auth keys.
Free MCP server of security & dev API tools -- supply-chain, CVE, DNS, WHOIS, OFAC, Cosmos SDK.
Find lookalike domains of a brand's website: typos, swapped letters, look-alike characters, added words and other TLDs. Shows which of them resolve in DNS and what their front page shows. One read-only tool, no sign-up. Registry name: com.openbait/lookalike-domains. Web version: https://openbait.com/tools/typosquat-check
Manage your Squish domains, DNS, hosting, backups and site files from your AI assistant.
Machine-Readable Company Profiles: find, search and read any company's Trust Profile, fact by fact.
DNS hosting, secondary DNS and dynamic DNS paid per call in sats; optional Nostr account tools.
UniFi quotes, case studies and network, camera, access config guides from a nationwide integrator.
Domain and email trust checks for agents: DNS, SPF/DMARC, disposable email. By Crypto Money Maker
USDC/USDT domain registrar: expiring drops, idea-to-name generator, WHOIS/DNS/value tools.
