# Abuse prevention

Use Stripe Radar to detect and prevent account abuse by your customers.

Stripe Radar provides abuse prevention APIs that let you detect and act on suspicious behavior before it impacts your revenue. Use Radar when you need to prevent abuse that occurs when your customer creates an account or logs in, or in between billing cycles.

[Multi-account and account sharing abuse evaluation](https://docs.stripe.com/radar/multi-account-and-account-sharing-abuse.md): Detect multi-accounting and account sharing abuse at signup and login, before you collect payment. Block fraudulent actors earlier in your workflow.

[Free trial abuse prevention](https://docs.stripe.com/radar/free-trial-abuse.md): Detect customers likely to abuse free trials by collecting a payment method at the start of a trial. You can block high-risk trials before they convert to subscriptions.

[Pay-as-you-go abuse evaluation](https://docs.stripe.com/radar/pay-as-you-go-abuse.md): Identify subscription customers unlikely to pay their next invoice before a billing cycle ends. You can limit usage, issue an early invoice, or flag accounts for review mid-cycle.

[Bot abuse prevention](https://docs.stripe.com/radar/bot-abuse.md): Detect payments likely made by automated scripts or agents. You can write rules to block high-scoring payments based on your anti-bot policies.