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Products that do what We (IPinfo) built a free IP data API that supports unlimited requests does
I am Abdullah from IPinfo. We have finally launched our API service that supports an unlimited amount of requests to fetch IP to Country and ASN database. It is free to use. https://ipinfo.io/lite Try out this token for the next several to check out the API service: a6c2e5328296f5 https://api.ipinfo.io/lite/8.8.8.8?token=a6c2e5328296f5 https://api.ipinfo.io/lite/me?token=a6c2e5328296f5 - The API system is built using Node.js from the ground up but we are currently moving our backend to Rust. We processed over 2 trillion requests last…
- 1IG
Hey all, wanted to share my recent weekend hack project. I wanted to improve upon the existing space for looking up information about IP addresses and ASNs. The backend is written in Rust and pulls BGP data every 8 hours from the RIPE RIS project to build up a routing table and also adds geolocation information. The frontend is using React and Tailwind. Would love any feedback or suggestions on what to improve.
2023 · ip.guide
- 2FI
Free IP to Country and ASN Data downloads: - MMDB, CSV and JSON format - Full accuracy (not degraded quality compared to our paid downloads) - IPv4 and IPv6 data - A single file that includes both country and ASN details - Daily updated - CC Attribution license (no usage restrictions, only requirement is a link back to ipinfo.io) Here's an example of querying the MMDB file using our mmdbctl tool: $ echo "1.1.1.1" | mmdbctl read country_asn.mmdb | jq . { "as_domain": "cloudflare.com", "as_name": "Cloudflare, Inc.", "asn": "AS13335", "continent": "NA", "continent_name": "North America",…
2023
- 3IV
Hi HN! Thanks for your attention to my post. It was a big challenge to run most of Node.js packages in browser, fast moreover. Virtual File system, resolve import/export. I got cold many times, depressions, burned out, yet still alive and finished it. Many guys helped me with an advice. Many users give a lot of positive feedback. There are 200,000 monthly unique users. I work full time now because of the freemium business model. To be honest - I am happy after many years of hard work.
2022 · playcode.io
- 4AS
2014 · ipinfo.io
- 5
- 6AA
We launched an API for custom hostnames today. A simple HTTP post with a hostname gets a temp hostname with CNAME/a record instructions, as soon as DNS is setup we issue SSL and start accepting traffic for that hostname. It's the quickest way we know of to provision custom hostnames: https://fly.io/mix/custom-hostnames/ When we started building Fly, we figured it was too late to "make SSL easy and the customers will come". Lets Encrypt changed the world, and we knew many companies rolling their own SSL support with nginx, Traefik, etc, etc. It seemed like a…
2017
- 7AF
The curl API for WorldIP is now live and completely free to use. You can hit it right from your terminal: curl worldip.io — returns information about your requesting IP. curl worldip.io/8.8.8.8 — returns details on any specific IP. The main differentiator here is that we aren't just wrapping another provider's API and reselling their data. We built and run our own global infrastructure capable of scanning the entire IPv4 space in about a day. Happy to answer any questions about the scanning infrastructure or the stack!
Jul 2026 · worldip.io
- 8IM
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…
2024 · ipflare.io
- 9CN
Last week Cloudflare released Cap'n Web [1], a schema-free capability-based RPC protocol. I built capn-rs this week - a Rust implementation with full wire protocol compatibility. Links: GitHub: https://github.com/currentspace/capn-rs Crates: https://crates.io/crates/capnweb-server API docs: https://docs.rs/capnweb-server What's working: Wire compatibility verified via integration tests against TypeScript reference Multi-transport: HTTP batch, WebSocket, WebTransport (HTTP/3) Complete IL (intermediate language) expression evaluator…
Sep 2025 · github.com
- 10SI
We recently launched a free tool that shows a summary of the top cities, countries, asns, routes and much of the other context that we (IPinfo) have for any IP addresses you paste into it. Sample results: https://ipinfo.io/summarize-ips/result?id=239e90aa-88b8-4476-84c7-bfd10ed2de3f You can paste any arbitrary text into the tool at https://ipinfo.io/summarize-ips and we'll extract the IPs. It can be useful for getting a quick summary of a set of IPs (eg. click on first google result for "public proxies", copy and paste the results into the tool, and see…
2021
- 11II
We've just launched an opensource golang `ipinfo` cli that lets you quickly and easily get IP address data from the cli. You can lookup geolocation, isp, carrier & vpn status for a single IP (in much the same way you can by `curl ipinfo.io`) but there's a bunch of additional functionality, including: - bulk lookups of IPs - summarize IPs (so get top ASNs, cities etc from a ton of IPs) - grepip subcommand to grep for IPs (v4, v6 and bogon flags available) - map command to map a bunch of IPs And more! See https://github.com/ipinfo/cli for more details and installation…
2021
- 12
- 13IM
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.
2025 · ip2geo.framer.website
- 14BI
I was setting up tests involving DNS resolution recently, where something like 127.0.0.1.service.foo would have been tremendously useful. Back in the day, I'd have used xip.io - but sadly that service died. Well, every excuse is a good one when it comes to writing a DNS server! Backname.io joins nip.io and sslip.io in the wildcard DNS game.
2023 · backname.io
- 15FI
Someone is selling a list of available three, four, and five letter .io domains that are available for $20. This - https://gist.github.com/4111298 - generates a list of available .io domains of any length (user specified). And, its free. (I'm away from my computer, so it isn't tested, but I ran it in repl.it). Edit - this is the seller - http://news.ycombinator.com/item?id=4804627
2012
- 16AD
I am currently working on a larger project that needs a short-lived HTTP "auth" based on a separate, out-of-band authentication process. Since every allowed IP only needs to be allowed for a few minutes at a time on specific server names, I created this project to solve that. It should work with any Redis-compatible database. For the docker-compose example, I used valkey. This is mostly useful if you have multiple domains that you want to control access to. If you want to allow 1.1.1.1 to mywebsite.com and securesite.com, and 2.2.2.2 to securesite.com and anothersite.org for certain TTLs,…
Dec 2025 · github.com
- 17PZ
Hi everyone! So a couple of weeks ago I was building a chrome extension for crawling data and uploading it somewhere online for further exploration. I found myself struggling a lot with this as I found every solution I tried hard to implement (Firebase, Mongo Atlas, EC2). I mean I only needed a simple endpoint in which I was able to set and get JSON data with some key. In the end I made a small CRUD using Mongo, Sinatra, Puma, and Nginx. Then Chrome complained that my endpoint (raw IP) was not HTTPS so I bought a cheap domain and configured an SSL certificate into my server. I found this to…
2020
- 18IU
Hey HN, We built IPAware (https://ipaware.io) - an IP intelligence API that doesn't charge per request. What it does: - IP geolocation (country, region, city, coordinates, timezone) - Threat detection (VPN/Proxy/Tor, risk scoring, datacenter detection) - ASN/ISP data - Clean JSON responses Why we built this: Every IP lookup service we tried had the same problem - you start small, your app grow and suddenly you're paying hundreds for what should be a commodity lookup. The metering anxiety is real. We wanted something we could integrate without worrying about the bill…
Feb 2026
- 19CA
I’ve been experimenting with building a Node.js HTTP framework using Rust + Hyper with N-Api. The project started as a fully synchronous server, but I recently patched it to support async (Tokio/Hyper). That change alone nearly doubled throughput in benchmarks. What’s different: * Built directly on Hyper, no heavy abstraction * napi glue for Node.js bindings * Minimal core (sync and async engines side-by-side) * Focused on raw performance, not plugins (yet) This is still experimental and not production-ready. I’d like feedback on: * Async API design — does it feel ergonomic? *…
2025
- 20AM
I made an open source, MIT license Typescript library based on some of the latest research that generates prompt injection attacks. It is a super minimal/lightweight and designed to be super easy to use. Keen to hear your thoughts and please be responsible and only pen test systems where you have permission to pen test!
2025 · prompt-injector.blueprintlab.io
- 21
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IP intelligence without the bill. Free ~2M/month, 50 req/min
Jul 2026 · ipdata.info
- 23JI
2021 · npmjs.com
- 24H3
I built this because I wanted to make outbound and accept inbound HTTP/3 and raw QUIC connections from ordinary Node.js code, without building Node from source or putting everything behind a reverse proxy. Repo: https://github.com/currentspace/http3 npm: https://www.npmjs.com/package/@currentspace/http3 It’s a native package around Rust/quiche. It supports both client and server APIs, I'm using it in a couple of projects: creating raw QUIC streams, datagrams, custom ALPN, session behavior, and HTTP/3 client work from Node. I've…
Jun 2026 · github.com
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