ipapi.is

ipapi.is is a fast, accurate IP geolocation and security intelligence API that provides comprehensive metadata for any IPv4 or IPv6 address, targeted at developers and security professionals.

🚀 Overview

ipapi.is delivers reliable IP address data by integrating WHOIS records, threat intelligence, honeypot networks, and proprietary algorithms for geolocation, hosting detection, VPN/proxy identification, and more. It addresses the common issues of inaccurate, slow, or incomplete IP data from other services, offering average response times under 1ms via globally distributed servers.

The API is built for developers integrating IP intelligence into apps for fraud prevention, traffic classification, ad targeting, analytics, and network security. Security teams and businesses benefit from its strong focus on detecting malicious traffic like abusers, Tor exits, and datacenters.

Created by developers in late 2022 as a foundation for IT security products, it has grown to serve over 3,300 users and hundreds of millions of requests monthly, with continuous data updates.

✨ Key Features

IP Geolocation: High accuracy for country and city levels using a proprietary database.
Hosting Detection: Identifies over 630k IPv4 and 550k IPv6 networks from thousands of providers with a custom algorithm.
Security Intelligence: Flags VPNs (1M+ IPs), proxies, Tor, and abusers (4.6M+ IPs) from threat feeds and scans.
ASN & Organization Info: Updated WHOIS from 5 RIRs, plus ASN metadata.
Bulk Lookups & Formats: Up to 100 IPs per request, outputs in JSON, HTML, Text, CSV; self-hosting option.
Optional: Dedicated full API/database rental for high-scale needs.

🛠 Tech Stack

Frontend: Static HTML/JavaScript (simple API demo site)
Backend: Custom HTTP API
Database: Proprietary (WHOIS crawls, threat intel, scans); open databases on GitHub
Auth: API keys (free signup)
Hosting: Microsoft Azure (servers in Germany, US East, Singapore; Traffic Manager, Cloud DNS)

👥 Who Is This For?

This project is useful for:

Developers who want to add fast IP metadata to apps
Security teams looking for threat blocking and traffic analysis
Businesses building geolocation-based services, ad personalization, or analytics

📸 Screenshots / Demo

Live demo: https://ipapi.is/?8.8.8.8 (enter any IP on homepage)
GitHub: https://github.com/ipapi-is

🔥 Project Status

🟢 Actively building

Last updated: 2026-03-24

❓ FAQ

Is this project free?

Freemium — 1,000 requests free per day; paid plans via indefinite credits for higher volume (pricing at /pricing.html).

Is the source code available?

Partially — IP databases open on GitHub (https://github.com/ipapi-is/ipapi); core API is proprietary.

Can I contribute?

Yes — submit PRs/issues to GitHub repos for databases; report data errors/corrections via https://ipapi.is/corrections.html; feedback on developers page.