Free IP API With No Key: The Keyless Options Compared (2026)
The Short Answer
HackMyIP is a free IP geolocation and privacy API that needs no signup and no API key. Every endpoint is a plain HTTPS GET, returns JSON, and supports CORS, so you can call it from a script, a serverless function, or directly from browser JavaScript. The base URL is https://hackmyip.com. Start with curl https://hackmyip.com/api/ip to get your own IP with full enrichment. If you are weighing the options, the comparison table below lines up the main free IP APIs by the three things that actually decide it: whether they need a key, their free-tier limit, and whether HTTPS and commercial use are allowed on the free plan. Read the full API docs for every endpoint.
Why No Key Matters
Most IP APIs make you register, confirm an email, and paste a key into every request before you can make a single call. For a quick script, a prototype, or a privacy check, that friction is the whole cost. HackMyIP skips it: paste the URL and run. There is no token to rotate, no dashboard to log into, and no per-key quota to track for basic use.
Free IP APIs Compared
These are the free IP geolocation and IP-info APIs developers ask about most. Each cell comes from that provider's own pricing or documentation page, checked July 2026. Free-tier limits and terms change often and can differ between the keyless JSON endpoint and a paid dashboard, so confirm on the provider's site before you rely on any number. Where a provider did not state a field on its page, it is marked "Not stated" rather than guessed.
| Service | API key / signup? | Free-tier limit (as stated) | HTTPS on free? | Commercial use on free? |
|---|---|---|---|---|
| HackMyIP (this API) | None | Light per-IP limit | Yes | Free privacy toolkit |
| ip-api.com | None (JSON endpoint) | 45 / minute | No (SSL is paid) | Non-commercial only |
| ipwho.is | None | 1,000 / day | Yes | Allowed |
| geojs.io | None | No limit stated (yet) | Yes | Not stated |
| freeipapi.com | None (key optional) | 60 / minute | Yes | Allowed (EU servers on free) |
| ipapi.co | None (basic) | ~1,000 / day | Yes | Not for production |
| ipinfo.io | Signup (token) | Country-level free tier | Not stated | Commercial license |
| ipgeolocation.io | Signup (key) | 1,000 / day | Not stated | Non-commercial only |
| ipdata.co | Signup | 1,500 / day | Not stated | Non-commercial only |
| ipstack | Signup (key) | 100 / month | No (SSL is paid) | Not stated |
| ip2location.io | Signup (key) | 50,000 / month | Not stated | Attribution required |
"None" means the JSON endpoint answers with no key or signup — several of these providers still gate fuller data or higher volume behind a key. Limits are quoted in the window each provider uses (per minute, per day, or per month); do not convert between them.
The Endpoints (HackMyIP)
All free, all keyless, all JSON:
# Your IP + geolocation + ISP + ASN + VPN/proxy/datacenter classificationThere are more — DNS records, WHOIS/RDAP, reverse DNS, blacklist checks, email breach lookups, port scans, and site up/down checks — all documented on the API docs page and listed for machines in /llms.txt and the OpenAPI spec. For the privacy-specific endpoints (email breach, VPN detection, privacy score), see the free privacy API guide.
The Even-Simpler Path
If all you want is your own IP in a terminal, you do not even need the /api prefix. curl hackmyip.com prints it as clean text, and curl hackmyip.com/json returns minimal JSON. See the command-line IP guide for one-liners across curl, wget, PowerShell, and Python.
What to Watch For in a Free IP API
A "free" IP API can carry conditions that only surface once you are in production. The four that trip people up:
Honest Limits (HackMyIP)
This is a young, free project — first launched in spring 2026 — run as a privacy toolkit, not an enterprise SLA. There is light per-IP rate limiting to keep it healthy for everyone (the current headers are documented on the API docs page), and the data comes from upstream public providers, so treat it as best-effort rather than a billing-grade source of truth. HTTPS and CORS work on every endpoint with no paid tier. For a developer-facing breakdown of VPN/proxy detection specifically, see the VPN detection API page, and for batch jobs see bulk IP lookup.
Frequently Asked Questions
Which free IP API does not need an API key?
As of July 2026, HackMyIP, ip-api.com, ipwho.is, geojs.io, and freeipapi.com all answer a JSON request with no key and no signup. HackMyIP also returns VPN/proxy classification, DNS, WHOIS, and breach data keyless. Always confirm the current terms on each provider page, since free tiers change.
Is there a free IP API with no signup?
Yes. HackMyIP offers IP geolocation, ISP/ASN detection, VPN/proxy classification, DNS, WHOIS, breach, and more as free HTTPS GET endpoints with no signup and no API key. Start with curl https://hackmyip.com/api/ip.
Can I use a free IP API commercially?
It depends on the provider. Several free tiers are non-commercial only or require attribution — ip-api.com, ipgeolocation.io, and ipdata.co restrict free commercial use, and ip2location.io requires an attribution credit — so read the terms before you ship. HackMyIP is a free privacy toolkit; use it reasonably so it stays available for everyone.
What is the rate limit on a free IP API?
It varies widely and is quoted in different windows: ip-api.com states 45 per minute, ipwho.is 1,000 per day, ipstack 100 per month. Read the window, not just the number. HackMyIP applies light per-IP rate limiting for fair use.
Do I need an API key for HackMyIP?
No. None of the public endpoints require a key or a token. You call the URL directly. There is light rate limiting for fair use, but no registration step for basic access.
Can I call the API from browser JavaScript?
Yes. The endpoints send CORS headers, so you can fetch them directly from front-end JavaScript without a proxy. They also work from servers, serverless functions, and scripts.
What can the API tell me about an IP?
For your own IP or any IP you pass, it returns geolocation (city, region, country), ISP and ASN, and a VPN/proxy/datacenter classification with a privacy grade. It can also check an IP against spam blacklists and do reverse DNS.
Is it really free, with no hidden cost?
Yes, the public API is free with no credit card and no paid tier required for the documented endpoints. It is a free privacy toolkit. Please use it reasonably so it stays available for everyone.