Before you can integrate SendGrid with Verst you will need your API Key. If you need help finding it you can look at the below photos, otherwise let's keep going!
To set up SendGrid go to your Verst dashboard and then click into Call-To-Action and hit the + icon to add a new one. Now just toggle "Link to Webpage" to "Email capture" and toggle "Use SendGrid" ON. Voila, Your page should look similar to the one below now :) Simply add your API Key value and you are good to go!
Finding/Creating an API Key
1. Log into SendGrid and click "Settings" --> "API Keys"
2. Once you're here, click "Create API Key"
3. Create & name your API Key