CCVS, or Credit Card Verification System, was a credit card processing system designed for

Posix The Portable Operating System Interface (POSIX) is a family of standards specified by the IEEE Computer Society for maintaining compatibility between operating systems. POSIX defines both the system- and user-level application programming interf ...

-based operating systems, including

Unix Unix (; trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and ot ...

Linux Linux ( or ) is a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically packaged as a Linux distribution, which ...

, and a version for

Palm OS Palm OS (also known as Garnet OS) was a mobile operating system initially developed by Palm, Inc., for personal digital assistants (PDAs) in 1996. Palm OS was designed for ease of use with a touchscreen-based graphical user interface. It is provi ...

shown at trade shows. It was originally sold by Hell's Kitchen Systems, Inc. from 1997 onward and was acquired along with the company by

Red Hat Red Hat, Inc. is an American software company that provides open source software products to enterprises. Founded in 1993, Red Hat has its corporate headquarters in Raleigh, North Carolina, with other offices worldwide. Red Hat has become ass ...

in January 2000. In 2002, Red Hat decided to exit the

eCommerce E-commerce (electronic commerce) is the activity of electronically buying or selling of products on online services or over the Internet. E-commerce draws on technologies such as mobile commerce, electronic funds transfer, supply chain managemen ...

market as an ISV, discontinued support for CCVS, and recommended that customers transition to

MCVE MCVE is a credit card processing computer software library and interface running under the Red Hat operating system, replacing Red Hat's CCVS. It was built in to some older versions of PHP PHP is a general-purpose scripting language geared ...

. The CCVS API supported use under

PHP PHP is a general-purpose scripting language geared toward web development. It was originally created by Danish-Canadian programmer Rasmus Lerdorf in 1993 and released in 1995. The PHP reference implementation is now produced by The PHP Group ...

Java Java (; id, Jawa, ; jv, ꦗꦮ; su, ) is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north. With a population of 151.6 million people, Java is the world's List ...

Perl Perl is a family of two high-level, general-purpose, interpreted, dynamic programming languages. "Perl" refers to Perl 5, but from 2000 to 2019 it also referred to its redesigned "sister language", Perl 6, before the latter's name was offici ...

Tcl TCL or Tcl or TCLs may refer to: Business * TCL Technology, a Chinese consumer electronics and appliance company **TCL Electronics, a subsidiary of TCL Technology * Texas Collegiate League, a collegiate baseball league * Trade Centre Limited, a ...

, and C to allow merchants to communicate directly with the credit card clearing house instead of using Internet-based intermediaries. Along with Red Hat's decision to discontinue support for this extension, it has also been removed from

and is no longer available since version 4.3.0. An alternative to CCVS is MCVE.

External links

PHP Manual Entry on CCVSPHP Manual Entry on MCVERed Hat Manual on CCVSMain Street Softworks
Credit card terminology {{compu-library-stub