ESputnik ESputnik is a marketing automation platform designed to help businesses create and manage email, SMS, and web push campaigns. It's used by marketers and sales teams to nurture leads, engage customers, and drive sales through personalized communication. Official docs: https://esputnik.com/api/ ESputnik Overview - Contact - Contact Fields - Contact List - Template - Campaign - Segment Use action names and parameters as needed. Working with ESputnik This skill uses the Membrane CLI to interact with ESputnik. Membrane handles authentication and credentials refresh automatically — so you…