FraudShield Detection API

Payments & Finance Infrastructure

FraudShield analyzes 200+ signals per request — velocity checks, device fingerprinting, IP reputation, card BIN lookup, and behavioral biometrics — in under 80ms. Returns a 0–100 risk score with a recommendation (allow/review/block) and detailed reason codes.

RESTTypeScript SDKWebhooksOpenAPINode.js

https://api.fraudshield.io/v2

Trust Score

4.8 / 5

234 dev notes

Live Uptime

99.99%

Guaranteed SLA

Avg Latency

72ms

Global Edge

API Traffic

18.0M

monthly average

Available Endpoints

POST/score/transactionScore a payment transaction

POST/score/loginScore a login attempt

POST/score/signupScore a new account registration

GET/rulesList active fraud rules

Implementation Example

const res = await fetch('https://api.fraudshield.io/v2/score/transaction', {
  method: 'POST',
  headers: { 'X-API-Key': process.env.FS_KEY, 'Content-Type': 'application/json' },
  body: JSON.stringify({ amount: 9900, currency: 'usd', ip: '1.2.3.4', card_bin: '411111' }),
});
const { score, recommendation } = await res.json();
// score: 12, recommendation: 'allow'

API Access

✓ FREE TIER ACTIVE

First 1,000 calls are free every month.

Personal$2/mo

Team$5/mo

Enterprise$15/mo

Technical Docs

API Provider

Jackson Lee

Fintech backend developer. Payments & fraud detection expert.