IP.SB

IP.SB API

Free REST API for IP address information, providing endpoints for caller IP, GeoIP lookup, DNS queries, WHOIS, speed tests, and more. No authentication or API key required.

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https://artifacts.apis.io/ip-sb/apis.yml

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API entry from apis.yml

apis.yml Raw ↑ 
name: IP.SB API
description: Free REST API for IP address information, providing endpoints for caller IP, GeoIP lookup,
  DNS queries, WHOIS, speed tests, and more. No authentication or API key required.
humanURL: https://ip.sb/api/
baseURL: https://api.ip.sb/
aid: ip-sb:ip-sb-api-2