ipapi.co

Overview

ipapi.co resolves IPs to geolocation data — city, country, timezone, and currency. Free tier is keyless but rate-limited strictly (our test from a datacenter IP hit HTTP 429 RateLimited — verified).

Quick Start

Your IP:

curl "https://ipapi.co/json/"

{
  "ip": "210.61.187.110",
  "city": "Kaohsiung",
  "region": "Kaohsiung",
  "country": "TW",
  "country_name": "Taiwan",
  "latitude": 22.6148,
  "longitude": 120.3139,
  "timezone": "Asia/Taipei",
  "currency": "TWD"
}

Specific IP / formats:

curl "https://ipapi.co/8.8.8.8/json/"
curl "https://ipapi.co/8.8.8.8/country/"
curl "https://ipapi.co/8.8.8.8/csv/"

Authentication

• Anonymous: works but rate-limited (429 under load, verified).
• Free key: register at ipapi.co → key (100k/month) → https://ipapi.co/{ip}/json/?key=YOUR_KEY.

Rate Limits & Notes

• Anonymous: very limited (shared pool); free key: 100,000 requests/month.
• Output formats: json, csv, xml, yaml, and plain field endpoints (/country/, /city/…).
• CORS-enabled — works from browsers (subject to the same rate limits).

FAQ

Is ipapi.co free? Anonymous is rate-limited; a free key gives 100k requests/month.

Why 429? The anonymous pool is heavily rate-limited (verified) — use a key.

What formats? JSON, CSV, XML, YAML, or single fields.