Re: Is there any rails gem to provide bitcoin payment on website?

The subject says all.
I'm looking for a gem to add btc support to my existing web app. Is there any?

You can normally just use your language's JSON-RPC libraries.
I haven't coded in ruby before, but there's an example using Ruby here:
https://en.bitcoin.it/wiki/API_reference_%28JSON-RPC%29#Ruby
And a thread on the subject here: http://forum.bitcoin.org/?topic=2435.0