I Made a Ultra-Low Latency IP Geolocation API in Go
Hey! I'm a solo developer having fun learning Go. I have a side hustle and wanted to implement currency localization. I could use existing IP databases, but hosting on serverless is slow. So I built my own. I was surprised how fun it can be to use Go, and it's fast. Thankfully, Go's speed makes up for my dodgy code. Anyway, I'd love to get some feedback on my website/API. After a few weeks of testing and losing money on ads, I'm confident it's very reliable. This isn't a promo. It's basicly free (30k lookups/month), so there's no need to pay. Any advice or tips on how to grow and…
I Made a Ultra-Low Latency IP Geolocation API in Go launched on November 28, 2024 with 15 votes, #990 of 4,990 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 1 year on.
In plain words
An IP geolocation API built in Go that identifies user location for currency localization and other purposes. The service emphasizes low latency performance, particularly for serverless deployments. It offers a free tier of 30,000 monthly lookups with paid options available. Designed for developers integrating location-based features into their applications, this tool prioritizes speed and reliability over feature complexity.
written from the facts on this page · September 2026
From the sources
IP Flare is a geolocation API. Our API is designed with developers in mind. With a single endpoint, you can effortlessly retrieve accurate geolocation information for any IP address. Enjoy ultra-fast responses, typically between 50-100ms, and reliable performance with 99.9% uptime.
Fast, scalable geolocation API for fraud prevention, ad targeting, and app localization. Choose between our REST API with a simple authorization header, or use our official TypeScript/JavaScript NPM package for even easier integration. Experience blazing-fast response times and join our thriving Discord community for support. 1 curl - H "X-API-Key: your-api.key-here" \ 2 https :// api . ipflare . io / 84.17.50.173 3 4 { 5 "ip" : "84.17.50.122" , 6 "version" : "IPv4" , 7 "city" : "London" , 8 "region" : "England" , 9 "region_code" : "ENG" , 10 "country_code" : "GB" , 11 "country_code_iso3" : "GBR" , 12 "country_fifa_code" : "ENG" , 13 "country_fips_code" : "UK" , 14 "country_name" : "United…from ipflare.io
In the maker’s words, at launch
Hey! I'm a solo developer having fun learning Go. I have a side hustle and wanted to implement currency localization. I could use existing IP databases, but hosting on serverless is slow. So I built my own. I was surprised how fun it can be to use Go, and it's fast. Thankfully, Go's speed makes up for my dodgy code.…
Does a similar job
all alternatives →
Tiny, fast, and free API to geolocate IP addresses2019 · github.com · ▲144Lightweight API service to get geolocation data from IP addresses. - risk3sixty/geoapi
Free IP API2023 · freeipapi.com · ▲83Free, Fast and Reliable IP Geolocation, Countries, Timezones and Phone codes API for commercial and non-commercial usage, Available in JSON and XML formats.
IPLocate.io – a free IP geolocation service2017 · iplocate.io · ▲20Real-time geolocation and privacy detection API for developers and enterprises. Free up to 1,000 requests per day. Detect user location, proxy and VPN usage, and more. Trusted by 100k businesses worldwide. More than 15 billion requests served every month.
- IMI made IP-to-Geo location data library for developers2025 · ip2geo.framer.website · ▲10
I made this lib called Ip2Geo — it's a super-lightweight, type-safe library that lets you convert any IP into geolocation data. It's 100% free with unlimited uses—no catch. It works online only and runs on both the client and server.
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