A free curl API for IP data (we scan the IPv4 space in <24h)
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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!
HN · launched Jul 29, 2026 · 10 upvotes (top 46%) · 0 views
Niche: geospatial and transport tracking platforms · 50 launches, 7 in the last 7 days · Explore this niche →
Category and tags
- Horizontal
- Data infrastructure
- Developer
- Not AI
- Commercial product
Visit website ↗ Source listing ↗
More like this: all 50 launches in geospatial and transport tracking platforms →
Could you build this?
No Continuously scanning the entire IPv4 address space in under 24 hours while gathering BGP, ASN, and geo data requires distributed network infrastructure and massive bandwidth.
What it would actually take: A real version requires high-speed packet generation frameworks (such as ZMap or Masscan using raw sockets/PF_RING) distributed across multiple datacenters with dedicated transit providers that permit Internet-wide port scanning without abuse termination. It also requires BGP routing table parsers, custom reverse DNS pipelining handling hundreds of thousands of queries per second, and in-memory trie databases for sub-millisecond CIDR lookups. Network systems engineering and anti-abuse operational expertise are mandatory.
Discussion
5 comments analyzed.
Competitors mentioned: MaxMind, bgp.tools
Concerns raised: GeoIP location accuracy mismatches with MaxMind, CIDR range pages show incorrect allocations, Unallocated blocks not handled properly
Feature requests: IPv6 support, Show all allocated sub-ranges like bgp.tools, Prefix not found pages for unallocated ranges
Competitors
Other products that read as similar to this one : 100 launches clear the similarity bar, closest 8 shown.
Attention rank: #45 of 101 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 263 days after the earliest competitor.
- IP Geolocation API · ph · 2026-09-12 · 2 upvotes · similarity 0.53
- Subdomains by Jsmon · ph · 2026-09-12 · 1 upvotes · similarity 0.49
- IP Clean Check · ph · 2026-10-14 · 1 upvotes · similarity 0.45
- WtsMyIP.com · ph · 2026-10-26 · 1 upvotes · similarity 0.45
- IPAware · hn · 2026-02-19 · 7 upvotes · similarity 0.43
- ipintel.pw · ph · 2026-10-01 · 1 upvotes · similarity 0.43
- Time Network Scanner Tool · ph · 2026-10-08 · 1 upvotes · similarity 0.42
- ip-please.github.io · github · 2026-10-18 · 304 upvotes · similarity 0.41
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