{"name":"utilo IP API","description":"Free IP geolocation, WHOIS, DNS, VPN detection, blacklist check, and CIDR calculator API. No API key required.","docs":"https://utilo.kr/ip/api-docs/","openapi":"/openapi.json","llms":"/llms.txt","mcp":{"endpoint":"/mcp","transport":"streamable-http","tools":["lookup_ip","whois_ip","lookup_dns","check_blacklist","detect_vpn","calculate_cidr"]},"rateLimit":{"global":"60/min","whois":"10/min","blacklist":"10/min","dns":"30/min"},"pricing":"free, no key"}