I'm shopping for a gem or plugin to help me convert between currencies and handle day to day exchange rate fluctuation.
I've found the gem currency: http://currency.rubyforge.org/
And a few other plugins...
http://wiki.github.com/jasonfranklin-stokes/currencyexchange
& http://jamesbrooks.net/2009/01/05/rails-cash-handler-plugin/
The gem is about 3 years out of date and some of it's sources don't even exist anymore. But all of them only support ~10 currencies. I would like one that supported as many currencies as possible. Possibly WebserviceX or another free API.
Any ideas?