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.[1]
In November 2001, Main Street Softworks[2] signed a contract with Red Hat to migrate the existing CCVS clientele to use MCVE. On July 2, 2003, Main Street Softworks renamed MCVE to Monetra. The following day a new version of MCVE was released carrying the new name, Monetra. Since then, they have released several new versions of Monetra and were in version 7 .