SendGrid Campaigns REST API v3 - Developers Email Campaigns, Marketing The SendGrid Campaigns API returns JSON data to create, manage, send, and schedule email campaigns. Developers can authenticate with API Key. Sendgrid offers email marketing services.Track API Choose StyleREST Choose Versionv3 RecommendedLearn about versioning SummarySDKs (0)How To(0)Source Code(0)Libraries(0)Developers (0)Followers (0)Changelog (0) Summary SDKs Articles How To Source Code Libraries Developers Followers ChangelogDevelopers (0) Add Mashup