Why use MaxMind's APIs?

• Save time. Call API code instead of writing your own HTTP calling and parsing code
• Built-in support for automatic failover to the backup server in case the primary server goes down
• PHP, Java and Perl APIs are Open Source and free to use

PHP, Java, Perl, ASP and ColdFusion APIs
Download APIs for MaxMind Credit Card Fraud Detection service. The license key required by the APIs is available for registered users. The ASP, .NET, MS SQL and ColdFusion APIs are unsupported. The use of the .NET API is not recommended, due to the fact that it throws a fatal error if the city is not found, and does not support some of the newer input and output fields. For .NET we recommend using our HTTP or SOAP interface. We do have full support for the PHP, Java and Perl APIs.

Documentation
The input and output fields are documented on our website. Each one of the APIs includes an example program that can be modified for your setup.

Updates
February 19th, 2009 Version 1.49 of PHP, Java and Perl APIs released, added new minfraud3.maxmind.com server.

October 3rd, 2008 Version 1.48 of PHP, Java and Perl APIs released, added user_agent and accept_language inputs.

October 4th, 2007 Version 1.46 of PHP, Java and Perl APIs released, replaced www.maxmind.com and www2.maxmind.com with minfraud1.maxmind.com and minfraud2.maxmind.com

October 3rd, 2006 Version 1.43 of PHP, Java and Perl APIs released, adds support for usernameMD5 and passwordMD5 input fields.

March 21st, 2006 MS-SQL minFraud API is now available, thanks to Shaun Hawkes.

August 8th, 2005 Version 1.4 of PHP, Java and Perl APIs released, adds support for Telephone Verification and shipForward input fields. We have improved performance and reliability by making the usage of DNS optional. The APIs now use the POST method which fixes a bug where the GET method truncated long query strings.

June 14th, 2005 - ColdFusion Custom Tag now available, thanks to TollFreeForwarding.com for the contribution.

February 9th, 2005 Version 1.3 of PHP, Java and Perl APIs released, adds support for requested_type, forwardedIP, emailMD5, shipAddr, txnID and sessionID input fields.

August 17th, 2004 - ASP minFraud API now available, thanks to Shaun Hawkes for the contribution.

August 12th, 2004 - .NET minFraud API now available, thanks to Samuel Stimpson for the contribution.

July 2nd, 2004 - Version 1.2 of APIs released, adds support for binName, binPhone and custPhone input fields.

June 8th, 2004 - Updated version of PHP API released, contains bug fix for using SSL mode. If you got a SSL error you should upgrade to 1.1.

May 27th, 2004 - Updated version of PHP API released, contains bug fixes for cities with spaces and PHP compiled with Curl. All PHP users should upgrade from 1.0 to 1.0b.