> ## Documentation Index
> Fetch the complete documentation index at: https://docs.usesend.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> useSend is open source alternative to Resend, Sendgrid, Mailgun and Postmark etc.

## Setting up

Quicklinks to set up your account and get started

> [card] [Add domain](https://app.usesend.com/domains)
>
> Add domains to send emails

> [card] [Create API key](https://app.usesend.com/dev-settings/api-keys)
>
> Generate API key to send emails from your app.

> [card] [Try our API](https://docs.usesend.com/api-reference/introduction.md)
>
> Learn how to use our API to send emails programmatically.

> [card] [NodeJS](https://docs.usesend.com/get-started/nodejs.md)
>
> Learn how to use our SDK using NodeJS to send emails programmatically.

> [card] [Python](https://docs.usesend.com/get-started/python.md)
>
> Learn how to use our SDK using Python to send emails programmatically.

> [card] [SMTP support](https://docs.usesend.com/get-started/smtp.md)
>
> Send emails with SMTP server instead of REST API.


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