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This API help you to screen an order to detect the degree of credit card fraud, and therefore protect your business order from losses due to chargebacks. The accuracy depends on the number of parameters and previous feedback. The more details & feedback supplied, the higher number of accuracy in return. Please visit http://www.fraudlabspro.com/developer/api for the API details.
IPQ's Proxy Detection can detect low quality IP connections that indicate fraudulent activity such as proxies, VPNs, & Tor connections. Reduce fraud and potential chargebacks by detecting high risk IP addresses. This service is excellent for affiliate networks and advertisers that want to avoid fraudulent traffic, merchants that want to avoid chargebacks, forums that want to block spammers, and other services looking to eliminate fraudulent signups and purchases. Get 5,000 FREE monthly queries, create a free account at IPQualityScore.com.
The FraudLabs Credit Card Fraud Detection Web Service allows instant detection of fraudulent online credit card order transactions which helps internet retailers to avoid loss of revenue, waste of productivity and increase of operation costs in chargebacks or refunds. Sign up for free license key at http://www.fraudlabs.com/freelicense.aspx?PackageID=1 which allows up to 90 queries a month.