Use the Gmail REST API to add Gmail features to your app, granting it access to threads, messages, labels, drafts, and history. The API is easy to use with modern web languages and Google API client libraries.
Create a Gmail Add-on to let your users interact with your apps and services directly—without ever leaving Gmail. You use Apps Script to create an add-on that can extend Gmail behavior, add functionality, and connect to other G Suite products like Google Calendar.
AMP for Email
Using AMP for Email, your email messages can fetch up-to-date content when the user opens a message, allow users to click through rich interactive widgets like carousels and accordions, and fill out forms.
Amplify your promotional email in Gmail
Email annotations make it easy to highlight key information like deals, expiration dates, and promo codes.
Adding images to your annotations help bring your promotions to life and make them more discoverable.
Gmail automatically groups and highlights promotions that people are most likely to be interested in.**
* Only consumers see the new Gmail Promotions tab. The experience
does not impact G Suite users.
** These are not ads and happen automatically based on a number of factors.