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minFraud Integration

We provide automated access to our minFraud service using the HTTP protocol. There is also a new SOAP interface available. This page describes the input and output fields for the minFraud service. While you can write your own code to access the HTTP service, we recommend using our PHP, Perl, Java and ASP APIs. The APIs will reduce programming time, and automatically failover to the backup server in case the primary server is unreachable.

MaxMind minFraud has been integrated by many popular e-commerce software providers. For more information, please take a look at the list of e-commerce solutions that support minFraud.

For a more detailed description of each feature and its relevance to fraud, please take a look at the fraud detection manual.


minFraud Service Inputs
Field Description
i Required Client IP Address (IP address of customer placing order)
city, region, postal, country Required Billing City/State/ZipCode/Country
domain Optional E-mail domain (e.g. hotmail.com, aol.com)
bin Optional BIN number, first 6 digits of credit card that identifies the issuing bank.
binName Optional Name of the bank which issued the credit card based on BIN number. Used to verify that cardholder is in possession of credit card.
binPhone Optional Customer service phone number listed on back of credit card. Used to verify that cardholder is in possession of credit card.
custPhone Optional Area code and local exchange. Used to verify phone number is in billing location of cardholder. Most formats are acceptable, as we remove non-numeric characters from the input.
license_key Required License Key. Obtain my license key or sign up for free trial.
requested_type Optional Can be set to
  • city (standard service)
  • premium (premium service)
To be used if you have multiple plans in one account and wish to select type of query you wish to make. By default the service uses the highest level available. For example if you have both standard and premium paid queries, the service will return the premium lookup results by default. However, if you wish to make a standard query to save on costs, specify the requested_type parameter to be city.
forwardedIP Optional IP address of end user, as forwarded by transparent proxy. Transparent proxies set the HTTP headers X-Forwarded-For or Client-IP, which contain the IP address of the end user. These IP addresses can be typically be accessed through the environment variables HTTP_X_FORWARDED_FOR and HTTP_CLIENT_IP. Note that the forwarded IP should be passed to the forwardedIP input field instead of the i input field, because we check that the IP address passed to the i input field is a legitimate transparent proxy before using the value in the forwardedIP input field.
emailMD5 Optional MD5 hash in hexadecimal form of lowercase version of e-mail. Used by carderEmail output to check against database of high risk e-mails. Must convert e-mail to lowercase before passing to MD5 hash function. MD5 hash is used to protect privacy of customer while having a unique identifier for the e-mail.
usernameMD5 Optional MD5 hash in hexadecimal form of lowercase version of your customer's user name. Used by highRiskUsername output to check against database of high risk user names. Must convert user name to lowercase before passing to MD5 hash function.
passwordMD5 Optional MD5 hash in hexadecimal form of lowercase version of your customer's password. Used by highRiskPassword output to check against database of high risk passwords. Must convert password to lowercase before passing to MD5 hash function.
shipAddr, shipCity, shipRegion, shipPostal, shipCountry Optional Shipping address. Used by shipForward output field to check against over 1,600 known mail forwarding services. You should only pass the shipping address when shipping physical goods, and when the billing address and shipping address are different, or an AVS check is not available on the billing address.
txnID Optional Internal transaction ID of order. Used to locate queries in our logs for debugging and reporting purposes, and is included in minFraud alert e-mails and notifications.
sessionID Optional Internal session ID for website. Used to link fraudulent orders together when carder tries using different credit cards and proxy servers. Typically you would get the session ID by tracking the user with a cookie or URL rewriting.


minFraud Service Outputs
Field Format Description
Geographical IP address location checking
countryMatch Yes or No Whether country of IP address matches billing address country (mismatch = higher risk)
countryCode two-letter ISO-3166 code Country Code of the IP address
highRiskCountry Yes or No Whether IP address or billing address country is in Egypt, Ghana, Indonesia, Lebanon, Macedonia, Morocco, Nigeria, Pakistan, Romania, Serbia and Montenegro, Ukraine, or Vietnam.
distance rounded integer Distance from IP address to Billing Location in kilometers (large distance = higher risk)
ip_region two character string ISO-3166-2/FIPS 10-4 code Estimated State/Region of the IP address, ISO-3166-2/FIPS 10-4 code
ip_city string Estimated City of the IP address
ip_latitude degrees Estimated Latitude of the IP address
ip_longitude degrees Estimated Longitude of the IP address
ip_isp string ISP of the IP address
ip_org string Organization of the IP address
Proxy Detection
anonymousProxy Yes or No Whether IP address is Anonymous Proxy (anonymous proxy = very high risk)
proxyScore decimal from 0 to 10 Likelihood of IP Address being an Open Proxy
isTransProxy Yes or No Whether IP address is in our database of known transparent proxy servers, returned if forwardedIP is passed as an input.
E-mail and Login Checks
freeMail Yes or No Whether e-mail is from free e-mail provider (free e-mail = higher risk)
carderEmail Yes or No Whether e-mail is in database of high risk e-mails
highRiskUsername Yes or No Whether usernameMD5 input is in database of high risk usernames. Only returned if usernameMD5 is included in inputs.
highRiskPassword Yes or No Whether passwordMD5 input is in database of high risk passwords. Only returned if passwordMD5 is included in inputs.
Issuing Bank BIN Number Checks
binMatch Yes, No, NotFound, or NA Whether country of issuing bank based on BIN number matches billing address country*
binCountry two-letter ISO-3166 code Country Code of the bank which issued the credit card based on BIN number*
binNameMatch Yes, No, NotFound, or NA Whether name of issuing bank matches inputted binName. A return value of Yes provides a positive indication that cardholder is in possession of credit card.*
binName string Name of the bank which issued the credit card based on BIN number*. Available for approximately 96% of BIN numbers.
binPhoneMatch Yes, No, NotFound, or NA Whether customer service phone number matches inputed binPhone. A return value of Yes provides a positive indication that cardholder is in possession of credit card.*
binPhone string Customer service phone number listed on back of credit card*. Available for approximately 75% of BIN numbers. In some cases phone number returned may be outdated.
Address and Phone Number Checks
custPhoneInBillingLoc Yes, No, NotFound, or NA Whether the customer phone number is in the billing zip code. A return value of Yes provides a positive indication that the phone number listed belongs to the cardholder. A return value of No indicates that the phone number may be in a different area, or may not be listed in our database. Currently we only support US Phone numbers.
shipForward Yes, No, or NA Whether shipping address is in database of known mail drops
cityPostalMatch Yes or No Whether billing city and state match zipcode. Currently available for US addresses only, returns empty string outside the US.
shipCityPostalMatch Yes or No Whether shipping city and state match zipcode. Currently available for US addresses only, returns empty string outside the US.
Risk Score
score decimal from 0 to 10 Overall fraud score based on outputs listed above. This is the original fraud score, and is based on a simple formula. It has been replaced with riskScore (see below), but is kept for backwards compatibility.
explanation string A brief explanation of the score, detailing what factors contributed to it, according to our formula
riskScore decimal from 0 to 100 New fraud score representing the estimated probability that the order is fraud, based off of analysis of past minFraud transactions. Requires an upgrade for clients who signed up before February 2007.
Account Information
queriesRemaining integer Number of queries remaining in your account, can be used to alert you when you may need to add more queries to your account
maxmindID eight character string Unique identifier, used to reference transactions when reporting fraudulent activity back to MaxMind. This reporting will help MaxMind improve its service to you and will enable a planned feature to customize the fraud scoring formula based on your chargeback history.
err string Returns an error string with a warning message or a reason why the request failed. List of possible error strings.
String outputs can be up to 255 characters long.
* Only Premium service returns binCountry, binName and binPhone.


minFraud Service URLs
Secure (HTTPS)

  • Primary Server: https://minfraud1.maxmind.com/app/ccv2r
  • Backup Server: https://minfraud2.maxmind.com/app/ccv2r
Regular (HTTP)
  • Primary Server: http://minfraud1.maxmind.com/app/ccv2r
  • Backup Server: http://minfraud2.maxmind.com/app/ccv2r
A sample query is listed below: https://minfraud1.maxmind.com/app/ccv2r?i=24.24.24.24&domain=yahoo.com&city=New+York&
region=NY&postal=10011&country=US&bin=549099&license_key=YOUR_LICENSE_KEY_HERE


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