The gem is a Ruby wrapper for a web service of the german "Sparkasse". It calculates the IBAN for a given bank code (in German "Bankleitzahl") and bank account number ("Kontonummer"). Behind the scenes the web service returns JSON (Example here)

WARNING: I'm not affiliated in any way with the web service or the Sparkasse. The web service seems not to be official. Maybe it will be offline soon. I didn't find any terms of use on their website. Use this gem at your own risk!

Ruby 2.0.0 or newer.

Add this line to your application's Gemfile:

gem 'ibanomat'

And then execute:

$ bundle

Or install it yourself as:

$ gem install ibanomat

  Ibanomat.find :bank_code => '37040044', :bank_account_number => '532013000'
  # =>
  # {
  #             :bank_name => 'Commerzbank',
  #                   :bic => 'COBADEFFXXX',
  #                  :iban => 'DE89370400440532013000',
  #             :bank_code => '37040044',
  #   :bank_account_number => '0532013000',
  #           :return_code => '00'
  # }

A return_code other than '00' indicates a warning or error.

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request

Copyright (c) 2013-2023 Georg Ledermann, released under the MIT license