Free IP Geolocation APIs Compared: Which One Should You Use in 2026?

Feb 9, 2026 · 8 min read

Choosing the right IP geolocation API can make or break your location-aware features. Whether you need to personalize content, detect timezones, or log visitor geography, the API you pick affects your app's speed, accuracy, and cost.

We compared five popular free IP geolocation APIs that developers commonly reach for in 2026. Here's how they stack up.

The Contenders

We evaluated these services on their free tiers:

• Kamero Geo API — open-source, Vercel Edge-powered, no API key
• ipgeolocation.io — established provider with a freemium model
• IP-Sonar — newer entrant with MaxMind-backed data
• ipapi.co — popular REST API with generous free tier
• ip-api.com — long-running free service for non-commercial use

Comparison Table

Kamero Geo API

Kamero takes a different approach from traditional geolocation providers. Instead of maintaining a separate IP database, it leverages Vercel's Edge Network headers to extract geolocation data at the edge. This means sub-50ms response times globally with zero infrastructure to manage.

The biggest differentiator: it's fully open source under MIT license and requires no API key. You can deploy your own instance to Vercel with one click, giving you complete control over your geolocation endpoint. For developers who need basic location data (IP, city, country, timezone, coordinates) without the overhead of managing API keys or worrying about rate limits, Kamero is hard to beat.

// Zero setup — just fetch
const res = await fetch("https://geo.kamero.ai/api/geo");
const { city, country, timezone } = await res.json();

ipgeolocation.io

One of the more established players in the space, ipgeolocation.io offers a comprehensive dataset that goes well beyond basic location data. Their API returns currency information, ISP details, connection type, and even threat intelligence data on paid plans.

The free tier gives you 1,000 requests per day with an API key. If you need rich data like ASN, ISP name, or currency details, this is a solid choice. The tradeoff is the registration requirement and the daily limit, which can be restrictive for client-side usage where every page view triggers a request.

IP-Sonar

IP-Sonar is a newer service that combines its own database with MaxMind data for accuracy. They offer 31,000 free requests per month without authentication, which is generous for side projects and MVPs.

They've also built some interesting integrations like an MCP server for AI assistants and a WordPress plugin. If you're building AI-powered tools that need location context, IP-Sonar's MCP integration is worth looking at.

ipapi.co

ipapi.co has been around for years and offers a clean, well-documented API. The free tier allows 1,000 requests per day without an API key, and the response includes useful fields like ASN, organization name, and currency.

One nice feature is the ability to query specific fields (e.g., /json/city) to reduce payload size. However, response times tend to be slightly higher than edge-based solutions.

ip-api.com

ip-api.com is one of the oldest free geolocation APIs. It's fast and returns a good amount of data, but comes with significant limitations: the free tier is restricted to non-commercial use and doesn't support HTTPS. The rate limit of 45 requests per minute also makes it unsuitable for production client-side usage.

Which One Should You Choose?

Here's a quick decision framework:

• Need zero setup and no rate limits? → Kamero Geo API
• Need rich data (ISP, currency, threat intel)? → ipgeolocation.io
• Building AI tools with location context? → IP-Sonar
• Want a mature, well-documented API? → ipapi.co
• Quick prototype, non-commercial? → ip-api.com

For most developers building web applications, the combination of no API key, no rate limits, CORS support, and the ability to self-host makes Kamero a strong default choice. When you need more data fields or enterprise features, the paid tiers of ipgeolocation.io or IP-Sonar fill that gap.