Stripe Radar

Radar's strongest argument is structural, not feature-level. Stripe handled $1.9 trillion in payments in 2025 across 11 million active Connect accounts, and Radar's models train on 70 trillion-plus data points from that traffic. Stripe says 92% of charges it sees on Stripe come from cards the network has previously processed — that prior exposure is why its risk scores land where they do, and it's not something a standalone vendor can replicate by model tuning alone. The second argument is operational: for existing Stripe merchants, Radar is on by default. There is no integration sprint, no separate dashboard, no data pipeline to maintain. Rules, 3D Secure, and review queues live inside the Stripe dashboard next to everything else you run. For a lean team without a dedicated fraud analyst, that is worth a lot. Where it goes deeper than most buyers expect is lifecycle coverage. Radar is not just a checkout filter. Account fraud prevention gives onboarding risk scores on merchants and customers and keeps monitoring them post-onboarding — that's the marketplace and platform use case, and it's the reason Stripe Connect accounts get protection with no extra implementation. On the customer side it watches free-trial abuse, multi-account signups, account sharing, and usage-based billing abuse, plus token theft before compute costs balloon — a real concern for AI and usage-based companies. Radar also distinguishes malicious bots from legitimate AI agents, which is the emerging agentic commerce problem. Smart Disputes, backed by Verifi and Ethoca early warnings, handles evidence assembly and submission for chargebacks. Two honest frictions. First, price. The 2026 increase more than tripled costs for some merchants and was presented as an opt-out free trial, so if you didn't opt out you're now on the new rate. Tier names and included screening volumes need to be checked against your actual transaction, account, and customer counts every renewal. Radar's own limitations note it doesn't cover every fraud type for extremely high-risk industries, and its models, while adaptive to your business data, are not exportable or transparent if that's an audit requirement. Second, Radar doesn't offer a chargeback guarantee — if you buy on guaranteed outcomes, Riskified or Forter structure their commercial terms differently (and generally charge accordingly). Where it fits: Stripe merchants of any size who want fraud handled without a project; platforms and marketplaces needing risk scores on every connected account; AI, usage-based, and subscription businesses exposed to trial abuse, token theft, and billing abuse; and teams moving into agentic commerce. Where it doesn't: merchants who need a chargeback guarantee, low-volume low-risk businesses where Stripe's built-in protection is already enough, cost-sensitive teams that can't absorb the 2026 increase, and companies that require transparent or exportable ML models. Non-Stripe merchants can use Radar through the