Create your account on quicknode.io
Next you will recieve an email to verify
Click VERIFY ACCOUNT link
Choose Ethereum Chain and Mainnet Network
Leave options in add-ons screen "as is" and click continue
Choose the free option at the bottom and click Create
Copy your HTTP Provider option to your clipboard
Add to Sensei by navigating to Settings -> Nodes -> Add Node
Name your Node, and paste your new URL in the URL section
Click Add Node to confirm