Ruby client for iban.com APIs

banking, fintech, fintech-api, iban
gem install ibancom -v 0.0.8



Ruby client for iban.com APIs (cf. https://www.iban.com/developers)

Run bin/console for an interactive prompt to experiment with the code.


Add this line to your application's Gemfile:

gem 'ibancom'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install ibancom

Supported APIs

This gem provides support for the following APIs:

  • Validation API v4


The first step for using this gem is to instantiate the client:

client = Ibancom::Client.new(apikey: "YOUR_API_KEY")

Once you have an authenticated client, you can validate any IBAN easily by using the validations service:

# Request an IBAN validation
iban = client.validations.validate("ES8800758353964664433159")
iban.valid? # true

# What is the bank/branch associated to this account?
bank = iban.bank # <Ibancom::Resources::IBAN::Bank:0x00007f384a4b80f0 ...
bank.bank        # "BANCO SANTANDER, S.A."
bank.bic         # "BSCHESMMXXX"
bank.account     # "4664433159"
bank.bank_code   # "0075"
bank.branch_code # "8353"
bank.address     # "JUAN IGNACIO LUCA DE TENA 9-11"
bank.city        # "MADRID"
bank.state       # nil
bank.zip         # "28027"
bank.phone       # "0915207000"
bank.country     # "Spain"
bank.country_iso # "ES"

# What SEPA schemes does it support?
#[#<Ibancom::Resources::IBAN::Scheme:0x00007f384f37a710 @code=:SCT, @response=nil, @supported="YES">,
# #<Ibancom::Resources::IBAN::Scheme:0x00007f384f37a030 @code=:SCI, @response=nil, @supported="YES">,
# #<Ibancom::Resources::IBAN::Scheme:0x00007f384f379e50 @code=:SDD, @response=nil, @supported="YES">,
# #<Ibancom::Resources::IBAN::Scheme:0x00007f384f379d10 @code=:COR1, @response=nil, @supported="YES">,
# #<Ibancom::Resources::IBAN::Scheme:0x00007f384f379ba8 @code=:B2B, @response=nil, @supported="YES">]

# Does the IBAN supports instant transfers?
iban.supported_scheme?(:SCI) # true

When the IBAN is not valid the failed checks are available for inspection:

iban = client.validations.validate("ES12")
iban.valid? # false
#[#<Ibancom::Resources::IBAN::Check:0x00007f384a576eb0 @code="202", @message="IBAN Check digit not correct", @response=nil, @type=:iban>,
# #<Ibancom::Resources::IBAN::Check:0x00007f384a576de8 @code="205", @message="IBAN structure is not correct", @response=nil, @type=:structure>,
# #<Ibancom::Resources::IBAN::Check:0x00007f384a576cf8 @code="203", @message="IBAN Length is not correct. Spain IBAN must be 24 characters long.", @response=nil, @type=:length>]


After checking out the repo, run bin/setup to install dependencies. Then, run bundle exec rake to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then tag and push the new version:

git tag vx.x.x main
git push origin vx.x.x

The tagging will trigger the GitHub action defined in release.yml, pushing the gem to rubygems.org.


Bug reports and pull requests are welcome on GitHub at https://github.com/devengoapp/ibancom-ruby. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.


The gem is available as open-source under the terms of the MIT License.

Code of Conduct

Everyone interacting in the PFS project's codebases, issue trackers, chat rooms, and mailing lists is expected to follow the code of conduct.