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

# Introduction

> Get started with AhaSend's powerful email delivery API. Send transactional emails, manage domains, and track delivery analytics.

AhaSend provides a powerful, reliable email delivery API designed for developers who need to send transactional emails at scale. Our RESTful API makes it easy to integrate email functionality into your applications with just a few lines of code.

This API reference documentation covers all available endpoints, parameters, and responses. For implementation guides and examples, check out our usage documentation.

For SMTP integration, please see

<CardGroup cols={2}>
  <Card title="SMTP Integration guide" icon="envelope" href="/smtp">
    Use our SMTP service for easy email integration
  </Card>
</CardGroup>

## Features

* **Full-featured API with Idempotency**: Complete REST API with built-in idempotency support for safe retries
* **Reliable Delivery**: 99.9% uptime with redundant infrastructure
* **Global Scale**: Send millions of emails with low latency worldwide
* **Real-time Analytics**: Track opens, clicks, bounces, and deliverability
* **Advanced Routing**: Intelligent routing and failover mechanisms
* **Webhook Support**: Real-time event notifications for all email activity
* **Domain Management**: Easy setup and verification of sending domains
* **Suppression Lists**: Automated bounce and complaint handling

## Getting Started

<Steps>
  <Step title="Create Your Account">
    Sign up for a free AhaSend account at [dash.ahasend.com/user/register](https://dash.ahasend.com/user/register)
  </Step>

  <Step title="Generate API Key">
    Once logged in, navigate to [the API Keys page](https://dash.ahasend.com/account/-/settings/api-keys) and create a new API key with the appropriate [scopes](/api-reference/scopes) for your use case
  </Step>

  <Step title="Make Your First Request">
    Use your API key to authenticate and send your first email using our simple REST API
  </Step>
</Steps>

<Note>
  Keep your API keys secure and never expose them in client-side code. Always use server-side implementations for production applications.
</Note>

## Support

Need help getting started? We're here to assist:

<CardGroup cols={2}>
  <Card title="Documentation" icon="book" href="/">
    Comprehensive guides and examples
  </Card>

  <Card title="API Reference" icon="terminal" href="/api-reference">
    Complete endpoint documentation
  </Card>
</CardGroup>

<Note>
  This is AhaSend API v2. We maintain full backwards compatibility - while new endpoints and fields may be added, existing APIs and fields will never be removed or changed in breaking ways.
</Note>

Ready to start sending emails? Check out our [Quick Start Guide](/quickstart) or explore our [Authentication](/api-reference/authentication) documentation.