"How to send a message on Slack" matching MCP connectors:
Matching Connector Tools:
Scores any web domain's public resilience: TLS, headers, DNS, response time. From $0.005 to $0.01/call, no signup.
Free no-key IP intelligence: geolocation, VPN detection, DNS, WHOIS, blacklists, breach checks
Live data: weather, air quality, FX, CN/HK/US stocks, IP geo, domain, SSL, China reachability.
Internet censorship and website reachability: OONI network measurements, keyless
macvendors.com MCP — MAC address (OUI) → hardware manufacturer lookup.
GreyNoise Community MCP — internet scanner classification (free tier with key)
Shodan InternetDB MCP — wraps Shodan InternetDB (internetdb.shodan.io)
IP Lookup MCP — ip-api.com (free, no auth for basic usage)
SecurityTrails MCP — wraps SecurityTrails API (securitytrails.com)
OpenCellID MCP — cell tower geolocation database (free with key)
IPInfo MCP — wraps ipinfo.io (free tier, no auth required for basic usage)
Cloudflare Radar MCP — internet observatory (traffic, attacks, BGP, quality)
Shodan MCP — wraps the full Shodan REST API (api.shodan.io)
PeeringDB MCP — the peering ecosystem database.
Read devices, users, keys, ACLs and DNS for a tailnet; manage devices, routes and auth keys.
AbuseIPDB MCP — wraps AbuseIPDB v2 API (api.abuseipdb.com/api/v2)
Free anonymous website, DNS, email and TLS checks, plus read-only access to your monitors.