Stripe Radar

Learn about our integrated solution for fraud protection.

Stripe Radar is a suite of modern tools to help you fight fraud. It’s fully integrated into your payments flow and you can start using it without any additional development time.

At the center of Stripe Radar is a machine learning system that provides real-time transaction scoring based upon thousands of signals about each incoming card payment. Our system also uses data across Stripe’s network of millions of businesses to evaluate the level of risk for each payment you process, and has shielded businesses on Stripe from millions of attempted fraudulent payments. If you’ve integrated with Stripe Checkout, Payment Intents, or Setup Intents, you may also use Stripe Radar to dynamically prompt your customers for authentication with 3D Secure, giving you a liability shift against fraudulent payments that have been verified by the card issuer.


Stripe Radar, our core machine learning engine, and Radar for Fraud Teams, an add-on suite of tools for fraud professionals, offer the following key features.

Stripe Radar Stripe Radar
For Fraud Teams
Machine learning-based risk evaluations on all your card payments.
Overview of the machine learning engine.
Default rules for CVC and ZIP code verification and dynamic authentication.
A risk score (0–100) that gives you granular insight into the risk level of a card payment.
Risk score settings that you can adjust based on business preference.
Insights on the latest state of your fraud prevention, with metrics on your rules performance, manual review efficiency, and fraud activity.
Rules to automate custom business logic.
Review workflows for suspicious payments.
Lists to automatically allow or block trusted or untrusted customers.


To use Stripe Radar, your website or app must use one of our recommended payments integrations. These integrations allow Radar to collect information on anomalous device or user behavior that may be indicative of fraud.

You should ensure that your own privacy policy tells your customers about this type of collection. Here is a paragraph you could add to your policy if it does not already include such a disclosure:

Next steps

Read on to learn more about risk evaluations that appear in the Dashboard and API, best practices for reviewing payments, and how to maximize machine learning performance with your integration.

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