Adding Mailchain to your application is easy. Mailchain's SDK makes interacting with the Mailchain protocol simple. Using the SDK you will be able to send, receive (coming soon... for now you can view replies in https://app.mailchain.com) and register addresses (coming soon).
To add Mailchain's SDK to your application install via your package manager of choice.
npm install @mailchain/sdk
yarn add @mailchain/sdk