ipto vs ipstack
ipstack advertises "100+ fields" and 2 million+ locations across 200,000+ cities, backed by ISP-partnership data and a 99.9% uptime claim. Unlike ipto, every tier — including free — requires registering for an API key before your first request.
| Feature | ipto | ipstack |
|---|---|---|
| API key required for free tier | Never | Yes |
| Published uptime SLA | Not yet | 99.9% |
| Security module | VPN, Tor, abuse — documented in full | 1 module, limited public field detail |
| City coverage claim | No published count | 200,000+ cities |
| Output formats | JSON, CSV, text, XML, YAML | JSON, XML |
| User-Agent / device parsing | Yes — GET /v1/ua, browser/OS/device/bot detection, also on the account dashboard | Yes — claimed in ipstack's own docs; sibling APILayer product "Userstack" is a dedicated UA-parsing API |
When ipstack might fit better
- You want a provider with ISP-partnership-sourced location data and a large advertised city-coverage number.
- A published 99.9% uptime SLA is a procurement requirement for you.
When ipto fits better
- You don't want to register for a key before your first test request — ipstack requires one even on the free plan.
- You want every field documented in detail upfront; ipstack's "100+ fields" claim isn't fully itemized on their public docs.
FAQ
Can I try ipstack without signing up?
No — ipstack requires an API key for every request, including free-tier ones. ipto never requires a key for the free tier.
Does ipstack publish all 100+ fields it advertises?
Not in full detail on their public marketing pages — much of the breakdown is paywalled behind their documentation for paid plans.
Try it: curl https://ipto.to/v1/ip/8.8.8.8 · full API reference · all alternatives