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Developer SDKs & Guides
ActionScript 3 Install SDK
Android Install SDK Quick-start Guide
C++ Install SDK
C# Install SDK
iOS Install SDK Quick-start Guide
Java Install SDK
JavaScript Install SDK Quick-start Guide
OS X Install SDK
Perl Install SDK
PHP Install SDK
Python Install SDK Quick-start Guide
Ruby Install SDK Quick-start Guide

For all other platforms, installation and setup instructions can be found in the README file of your platform’s SDK. All Evernote SDKs can be found on Github.