# Ensend Documentation

> Ensend (Formerly SMTP Express) API Documentation for Email, SMS, WhatsApp and Push Messages and Broadcast

## Docs

- [API Credentials](https://docs.ensend.co/credentials.md): Obtain your api credentials and authenticate your requests to the Ensend API
- [Welcome to Ensend](https://docs.ensend.co/index.md): The multi-channel notification and messaging platform for product and marketing teams to engage with, and retain customers at scale.
- [Quickstart](https://docs.ensend.co/quickstart.md): Integrate Ensend into your applications using the official developer SDKs and API.
- [SMTP Server](https://docs.ensend.co/smtp-server.md): Send emails with Ensend's SMTP server

## OpenAPI Specs

- [openapi](https://docs.ensend.co/api-reference/openapi.json)