To get started, you'll need both the GemWallet extension and the API needed to integrate with it.
Install the GemWallet extension.
You'll want a local version of the extension to test with.
Head over to the Chrome extension store and install GemWallet into your browser.
Install GemWallet API
To communicate with the extension, you need to use the GemWallet API that will let you send and receive messages from the extension.