LayerCall

API that scores a signup's IP, email, phone, domain and device for fraud risk in one request.

layercall.com · Free plan

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Details

What it does: Security and passwords
Who it’s for: Developers, Software companies
Pricing: Free plan
Works on: API
Tags: fraud prevention, signup fraud, device fingerprinting, disposable email

Is It Disposable
Catches throwaway email addresses at your signup form with a snippet or REST API, and your rules decide whether to allow or block.
Free plan · Security and passwords · Developers
IP2Location.io
API that returns the country, city, ISP and proxy status of an IP address, plus domain WHOIS data, for developers.
Free plan · Security and passwords · Developers
SignupVet
Checks each new signup's email, phone and IP, spots bot waves, and says whether to allow, review or block it.
Free plan · Security and passwords · Developers
StopReg
An API that checks signup emails in real time and flags throwaway, role-based or fake addresses before they get in.
Free plan · Security and passwords · Developers