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Query Argentine Peso vs US$ exchange values with particular interest in official vs. ilegal (blue) reference prices.

dolarblue is a command-line tool to query AR$ vs US$ exchange values.

The term blue denotes an important difference between the real value of Argentine local currency (the argentine peso) versus the official value currently unreacheable to the general public.


$ gem install dolarblue or add to your Gemfile this line: gem 'dolarblue' then run bundle install

Usage (command-line)

Query latest values

$ dolarblue

Sample result:

Obtaining latest AR


  1. Fork it.
  2. Make your feature addition or bug fix and create your feature branch.
  3. Update the Change Log.
  4. Add specs/tests for it. This is important so I don't break it in a future version unintentionally.
  5. Commit, create a new Pull Request.
  6. Check that your pull request passes the build.


Released under the MIT License. See the LICENSE file for further details.


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