All Comparisons

Fidro vs VPNAPI.io

VPNAPI.io tells you about an IP address. Fidro weighs that alongside the email and the location, remembers earlier signups, and returns one decision your code can act on.

Last updated: March 2026

What is Fidro?

Fidro is a fraud detection API for developers. One call checks an email address and an IP for disposable domains, VPNs, proxies, Tor and datacenters, remembers earlier signups and logins, and returns a 0 to 100 risk score with an allow, challenge or block recommendation. On the Pro plan it also scores Stripe payments. The free plan includes 200 validations a month, no credit card needed.

Feature Comparison

Feature Fidro VPNAPI.io
VPN, Proxy & Tor Detection Yes Yes
Datacenter IP Detection Yes Yes
Email Validation Yes No
Disposable Email Detection Yes No
Combined Risk Score Yes Raw flags only
Allow / Challenge / Block Recommendation Yes No
Custom Blocklists Yes No
Stripe Chargeback Prevention Yes No
Velocity & Anomaly Detection Yes No
Free Plan 200/month 1,000/day
Starting Price Free, then $29/mo Free, then paid tiers

Where Fidro differs from VPNAPI.io

More than the IP

VPNAPI.io tells you about the network. Fidro adds email checks, disposable domain detection and location matching in the same call, and Stripe payment scoring on Pro.

A decision, not a data point

Fidro weighs the network signals with everything else and returns allow, challenge or block, so you don't write scoring logic around raw flags.

Ship it this afternoon

One REST call, with SDKs for Node, PHP, Laravel, Python and Go. Start with 200 free validations a month, no credit card.

Want to see it first? Check an email for free or browse the disposable email list.

Common questions

What is the difference between Fidro and VPNAPI.io?
VPNAPI.io is a specialist: it takes an IP address and tells you whether it is a VPN, proxy or Tor node. Fidro checks the same network signals but also validates the email address, checks it against nearly 10,000 disposable domains, compares stated country against IP geolocation, and combines everything into one risk score with an allow, challenge or block recommendation. VPNAPI.io returns flags you interpret; Fidro returns a decision.
Does VPNAPI.io have a more generous free tier than Fidro?
Yes, considerably. VPNAPI.io allows 1,000 API requests per day on its free plan, which resets at 00:00 UTC, roughly 30,000 a month. Fidro's free plan is 200 validations a month. If you only need IP lookups at volume and you are cost-sensitive, VPNAPI.io is the better free option and we would rather tell you that here.
Should I use VPNAPI.io or Fidro?
Use VPNAPI.io if you need one signal, at volume, cheaply, and you are happy writing the scoring logic yourself. Use Fidro if you want the network signal weighed alongside email and location risk and returned as a decision, or if you also need to score payments. Many teams start with a single-signal API and move when maintaining their own scoring logic across two or three vendors becomes the work.
Can Fidro replace VPNAPI.io?
For fraud prevention use cases, yes: Fidro covers VPN, proxy, Tor and datacenter detection in the same call as its email and geolocation checks. If your use case is purely high-volume IP classification with no fraud decision attached, VPNAPI.io is the more focused and cheaper tool for that job.
Does VPNAPI.io detect disposable email addresses?
No. VPNAPI.io works on IP addresses only. Disposable email detection would require a separate email validation vendor alongside it, which is the stack Fidro is designed to replace with a single call.

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200 free validations a month. No credit card, no sales call.

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