FraudLabs Pro

Overview

FraudLabs Pro screens orders for fraud — IP geolocation, proxy/VPN detection, and risk scoring. Auth is a free API key.

⚠️ Gotcha (verified 2026-08): an invalid key returns HTTP 200 with NA/empty values (e.g. "ip_country":"") instead of a 401 — check ip_country (or fraudlabspro_validation) in the response to detect a bad key.

Quick Start

Screen an order (replace YOUR_KEY):

curl "https://api.fraudlabspro.com/v1/order/screen?format=json&key=YOUR_KEY&ip=8.8.8.8"

{
  "ip_country": "US",
  "is_country_match": "Y",
  "is_high_risk_country": "N",
  "is_proxy": "N",
  "is_vpn": "N",
  "fraudlabspro_score": 0.5,
  "fraudlabspro_status": "APPROVE"
}

Authentication

• Register at fraudlabspro.com → free API key (emailed).
• Send it as the key query parameter.

Rate Limits & Notes

• Free tier: ~500 transactions/month (check the docs); paid plans scale.
• Order screening returns risk flags: proxy, VPN, high-risk country, and a score.
• A bad key gives 200 + NA values (verified) — validate the response.

FAQ

Is FraudLabs Pro free? Free tier: ~500 orders/month; more is paid.

Why 200 with NA values? Invalid keys return 200 with empty data (verified) — check ip_country.

What does it screen? IP, proxy/VPN, country risk, and card screening.