About Greybox

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We believe that security and privacy should be foundational, not an afterthought.

At Greybox, we develop a suite of specialized API solutions designed to integrate seamlessly into modern security and development stacks.

riskr API - Real-Time Fraud Detection & Identity Risk Scoring

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riskr is a real time fraud detection API that analyzes email addresses, phone numbers, IP addresses, and browser timezone signals to produce a risk score and verdict for each request. It is designed to integrate directly into sign up flows, checkout pages, and authentication systems to help stop fraudulent accounts before they are created.

Intelligent Auditing. Weighted Precision. 


riskr transforms fraud prevention from a static checklist into a high speed intelligence engine. By executing three specialized analysis pipelines in parallel, the platform correlates data from email, phone, and network signals to identify sophisticated threats in real time.
 
Rather than relying on simple pass/fail triggers, riskr applies weighted risk points to every suspicious signal. From VOIP detection and geographic divergence to /24 subnet velocity tracking, riskr returns a nuanced, actionable verdict to your application instantly.
 
This weighted approach allows you to neutralize high-risk actors like botnets and professional fraud rings while maintaining a frictionless experience for your legitimate users.


Explore the riskr API at: https://riskr.dev

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