ipconfig.io

A fast public IP and network lookup service. curl gets the bare IP, /json gets the full record — geolocation, ASN, and reverse DNS. No keys, no signup.

Try it now

# your public IP, as plain text
curl ipconfig.io

# the full record, as JSON
curl ipconfig.io/json

# look up any address
curl ipconfig.io/json?ip=1.1.1.1

The response adapts to the caller: a terminal gets plain text, a browser gets the dashboard, and Accept: application/json (or the /json path) gets JSON.

Start here

• Quickstart — get your IP, fetch JSON, parse a field, wire it into a script.
• API reference — every endpoint, the ?ip= parameter, and the full JSON field set.
• Guides
  • Find your public IP from the terminal
  • Look up IP geolocation with curl
  • What is an ASN, and how to find yours

Looking for the live tool? It's at ipconfig.io.