MioIP.info

A completely free, frictionless API for IP Geolocation, ASN data, and IP validation. You can grab full JSON payloads or just query single fields in plain text (e.g., curl mioip.info/api/city). MioIP.info allows you to quickly verify your public IP address, whether you are using IPv4 or IPv6. Beyond simply showing your IP, this tool provides helpful details about your current connection, including your internet service provider (ISP) and your approximate geographic location. It is a simple and effective way to monitor your network status and understand how you appear to others on the web.