> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fraudeg.com/llms.txt
> Use this file to discover all available pages before exploring further.

# FraudEG: Real-Time Fraud Prevention for Digital Businesses

> FraudEG is an API-first fraud prevention platform. Learn how it stops payment fraud, account takeover, and identity abuse in real time.

FraudEG is a real-time fraud prevention platform built for digital businesses that cannot afford to let bad actors through — or turn away good customers. Whether you run a fintech app, an e-commerce store, a marketplace, a payment processor, or a crypto exchange, FraudEG plugs directly into your transaction and user flows via REST API and returns a risk score, a decision, and a full set of explainable signals in milliseconds.

## Who FraudEG Is For

FraudEG is designed for engineering and risk teams at:

* **Fintechs and neobanks** — protect account funding, P2P transfers, and card issuance from day one.
* **E-commerce and retail** — stop card-not-present fraud and chargeback abuse without adding friction for genuine buyers.
* **Marketplaces** — screen buyers, sellers, and payouts for synthetic identities and collusion.
* **SaaS platforms** — defend trial abuse, promo fraud, and unauthorized account access.
* **Payment processors and PSPs** — add a fraud decisioning layer across your entire merchant portfolio.
* **Crypto exchanges and Web3 apps** — assess risk on deposits, withdrawals, and wallet interactions.

## Problems FraudEG Solves

Modern fraud is fast, automated, and cross-channel. FraudEG is built to counter it across every major threat vector:

| Threat                     | Description                                                         |
| -------------------------- | ------------------------------------------------------------------- |
| **Payment fraud**          | Stolen card numbers, BIN attacks, and card-testing at checkout      |
| **Chargebacks**            | First-party misuse and friendly fraud that erodes margins           |
| **Account takeover (ATO)** | Credential stuffing, session hijacking, and unauthorized logins     |
| **Synthetic identities**   | Fabricated user profiles combining real and fake data to pass KYC   |
| **Social engineering**     | Authorized push payment (APP) fraud and scam-initiated transactions |

## How It Works

Every FraudEG integration follows the same straightforward pattern:

1. **Your server makes a REST API call** — send transaction, user, device, and session context to the FraudEG endpoint.
2. **FraudEG returns a risk score, a decision, and signals** — a score from 0 (no risk) to 100 (highest risk), a machine decision (`allow`, `challenge`, or `block`), and a ranked list of contributing signals.
3. **You act on the decision** — pass the transaction, step up authentication, or decline, all within your own UX.

The entire round-trip typically completes in under 100 ms, making FraudEG suitable for synchronous, customer-facing flows.

## Supported Payment Rails

FraudEG covers the full breadth of modern payment methods:

* **Credit and debit cards** — Visa, Mastercard, Amex, and co-branded cards
* **Digital wallets** — Apple Pay, Google Pay, PayPal, and proprietary wallet products
* **Bank transfers** — ACH, wire, SEPA, and instant payment schemes
* **QR payments** — dynamic and static QR code-based flows
* **Cryptocurrency** — on-chain transfers, exchange deposits/withdrawals, and wallet interactions

## Key Capabilities

**Risk Scoring Engine** — A multi-model ensemble trained on billions of transactions produces a single, calibrated risk score alongside the factors that drove it.

**Identity Verification** — Cross-reference user-supplied identity data against global databases, email reputation signals, phone intelligence, and document verification results.

**Device Intelligence** — Fingerprint devices across sessions, detect emulators and virtual machines, and link devices to known fraud rings without requiring any SDK on the client.

**Behavioral Analysis** — Model how a legitimate user navigates your product and surface anomalies — unusual typing cadence, copy-paste in sensitive fields, rapid form completion — that precede fraud.

**Workflow Automation** — Build no-code rules and dynamic risk thresholds in the FraudEG dashboard to route decisions through your own business logic without a redeployment.

## Get Started

<CardGroup cols={2}>
  <Card title="Quickstart" icon="bolt" href="/quickstart">
    Make your first fraud risk assessment in under 5 minutes with a single API call.
  </Card>

  <Card title="Authentication" icon="key" href="/authentication">
    Learn how to obtain your API key and authenticate every request securely.
  </Card>

  <Card title="Risk Scoring Concepts" icon="chart-line" href="/concepts/risk-scoring">
    Understand how FraudEG calculates risk scores and what signals mean.
  </Card>

  <Card title="API Reference" icon="code" href="/api-reference/overview">
    Explore the full REST API — every endpoint, parameter, and response schema.
  </Card>
</CardGroup>

<Note>
  FraudEG provides a fully featured **sandbox environment** that mirrors production behavior. Use test API keys (prefixed `feg_test_`) to simulate transactions, trigger specific decisions, and validate your integration before going live — no real money or real users involved.
</Note>