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Donny Nguyen
Donny Nguyen

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Monitor Stripe Fraud Rules Programmatically with the Stripe Radar Rules API

#stripe #api #ecommerce #fraud

Why You Need Visibility Into Your Radar Rules

If you're running an e-commerce store on Stripe, you already rely on Radar to block fraudulent payments. But how often do you actually audit your rules? Most teams configure Radar once and forget about it — until legitimate customers start getting declined.

The Stripe Radar Rules API gives you programmatic access to your Radar rule configuration and payment decline rates, so you can build monitoring dashboards, run automated audits, and catch problems before they cost you revenue.

What It Does

This REST API lets you retrieve Stripe Radar fraud rules for any account. You get back the full rule set — including block rules, review rules, and allow rules — along with decline rate metrics. It's useful for:

  • Fraud ops dashboards — surface rule configurations alongside decline trends
  • Multi-merchant platforms — audit Radar rules across all connected accounts
  • Automated alerting — trigger notifications when decline rates spike
  • Compliance reporting — document your fraud prevention posture

Quick Start

Hit the endpoint with a GET request and your account ID:

const response = await fetch(
  'https://consolidated-finance-apis-production.up.railway.app/api/stripe-radar-rules-api/radar/rules?accountId=acct_1234567890',
  {
    method: 'GET',
    headers: {
      'Content-Type': 'application/json'
    }
  }
);

const data = await response.json();

// Inspect active block rules
const blockRules = data.rules?.filter(r => r.action === 'block');
console.log(`Active block rules: ${blockRules?.length}`);

// Check overall decline rate
console.log(`Current decline rate: ${data.declineRate}%`);
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The response includes your complete Radar rule configuration with action types, predicates, and associated decline metrics — everything you need to build a monitoring layer on top of Stripe.

Real-World Use Case

Say you manage payments for a marketplace with 50 connected Stripe accounts. Instead of logging into each dashboard manually, you poll this API on a schedule, aggregate the results, and flag any account where the decline rate exceeds your threshold. That's a five-minute cron job that saves hours of manual review.

Try It Out

The API is available on RapidAPI with a free tier so you can test it immediately:

Stripe Radar Rules API on RapidAPI

Subscribe, grab your API key, and start pulling Radar data into your own tools. If you're building fraud monitoring or multi-merchant payment infrastructure, this saves you from wiring up the Stripe SDK directly for a read-only use case.

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