Where do API calls go in a ruby on rails MVC framework project?

I have an application in Ruby on Rails with mvc framework. As of now, I have API calls in the controller but don't think this is the right place for them. What kind of file should all my API calls go in? Thanks

def getDetails(id)
 api_response = HTTParty.get(base_uri, :query => {:DID => id, :DeveloperKey => devKey})
 @json_hash = api_response.parsed_response
 return @json_hash
end