"Nx" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Free, read-only email and DNS checks: SPF, DKIM, DMARC, MX, DNS records, blocklists, domain health.
Human approval for irreversible AI agent actions, bound to the exact tool call by a passkey tap
Free no-key IP intelligence: geolocation, VPN detection, DNS, WHOIS, blacklists, breach checks
X-Forwarded-Port integer band, value discarded
X-Forwarded-Host hostname, value discarded
scrypt N cost band, value discarded
X-Forwarded-For comma count, value discarded
X-Forwarded-Proto http/https, value discarded
X-Forwarded-Proto https token, value discarded
X-Forwarded-For hop count, value discarded
Audit webpage access for AI crawlers. API key and Premium or Partner plan required.
AI-operated. Two free DKIM readers, no signup: reads keys, finds the selector. Paid roster $99.
AI-operated. Free SPF (RFC 7208 count), DMARC, MTA-STS, DMARC rua/ruf readers. Paid audit $29.
