An agent can connect on its own if it already holds X_API_KEY, X_API_KEY.Remote endpoint behind a static API key or header. The registry never sees the value; the agent fills the placeholder.
Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.
Endpoints
remote
auth
reachable
uptime 30d
p50
protocol
last ok
https://lookuplab.io/api/mcpstreamable-http
api_key ${X_API_KEY}
yes
100%
340 ms
2025-11-25
2026-10-20
Tools (4)
dns_check
Inspect a user-provided domain's MX, SPF, DMARC or DKIM record and report issues. Does not change DNS. DKIM requires a selector. Uses 1 existing account credit for a successful check.
email_verify
Check an email address supplied by the user for syntax, MX records, disposable-domain and role-address indicators. Does not prove mailbox ownership or guarantee delivery. Uses 1 existing account credit for a successful check; does not send email.
ip_lookup
Look up approximate IP location and network/provider indicators for an IP address supplied by the user. IP location is not a person's precise location or identity; privacy flags may be unavailable. Uses 1 existing account credit for a successful check.
phone_lookup
Check a user-provided phone number for carrier and line type. Optional US/CA caller-name data is a carrier listing, not identity verification. Uses existing account credits: 1 for landline/VoIP/toll-free, 3 for mobile or unknown; caller name adds 2. Reserves up to 5 credits before execution. Does not place calls or send messages.