Stop abuse across the customer lifecycle.
Detect and block bad actors before they exploit your business's policies or products.
The opportunity
Fraud and abuse are no longer limited to checkout—they exploit free trials and tiers to steal tokens, use invalid payment methods in post-pay business models, and claim refunds for products they actually received.
Stripe Radar is built to detect and block fraud from signup to usage. Trained on Stripe's network, Radar's AI learns from patterns identified across millions of global businesses—so your protection gets stronger over time.
Prevent customer abuse before it costs you.
Stay ahead of first-party fraud at every stage—not just at the moment of payment.
Stop high-risk signups and free trial abuse
Flag and block bad actors at account creation without turning away legitimate customers. For AI companies, protect free tiers and trials while preventing costly token theft.
Tell malicious bots from legitimate ones
At payment time, block fraudulent automated transactions without disrupting legitimate agentic commerce.
Defend your usage-based and post-pay revenue
Identify bad actors running up compute, bandwidth, or storage bills before they churn without paying. Built for the abuse patterns hitting AI companies hardest.
The Stripe network enables Radar to detect and block abuse at scale
Stop bad actors from exploiting your product.
Radar protects against common and emerging types of customer abuse.
Free trial abuse
Bad actors sign up for free trials with no intent to pay when required, using prepaid cards or canceling immediately after access is granted.
Multi-account abuse
Bad actors create multiple accounts to repeatedly access free tiers, trials, or promotions.
Bot abuse
Bad actors deploy automated and scripted behavior that exploits self-serve flows at scale.
Pay-as-you-go abuse
Bad actors accumulate large usage bills (compute, bandwidth, storage) and churn without paying when required. Particularly costly for AI companies.
1 Merchant Risk Council and B2B International. 2026 Global eCommerce Payments & Fraud Report. Merchant Risk Council, 2026.