This Ruby Gem is the official reference client for the payments API. To use this, you will need the Dogecoin, Bitcoin, or Litecoin API key(s) from Go ahead, sign up :)


Add this line to your application's Gemfile:

gem 'block_io'

And then execute:

$ bundle

Or install it yourself as:

$ gem install block_io -v=1.2.0


06/25/18: Remove support for Ruby < 1.9.3 (OpenSSL::Cipher::Cipher). Remove connection_pool dependency.
01/21/15: Added ability to sweep coins from one address to another.
11/04/14: Fix issue with nil parameters in an API call.
11/03/14: Reduce dependence on OpenSSL. PBKDF2 function is now Ruby-based. Should work well with Heroku's libraries.
10/18/14: Now using deterministic signatures (RFC6979), and BIP62 to hinder transaction malleability.


It's super easy to get started. In your Ruby shell ($ irb), for example, do this:

require 'block_io'
BlockIo.set_options :api_key => 'API KEY', :pin => 'SECRET PIN', :version => 2

And you're good to go:


For more information, see


  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 a new Pull Request