freebase_httparty.rb

class Freebase
   include HTTParty
   format :json
   base_uri 'http://www.freebase.com/api'

   def self.read(q)
     return get('/service/mqlread?', :query => {:query => '{"query":' + q + '}'})['result']
   end
end

query = '{"id":"/en/peru","capital":null,"type":"/location/country"}'
puts Freebase.read(query)['capital']