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

SMTP Integration guide

Use our SMTP service for easy email integration

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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

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Getting Started

1

Create Your Account

Sign up for a free AhaSend account at dash.ahasend.com/user/register
2

Generate API Key

Once logged in, navigate to the API Keys page and create a new API key with the appropriate scopes for your use case
3

Make Your First Request

Use your API key to authenticate and send your first email using our simple REST API
Keep your API keys secure and never expose them in client-side code. Always use server-side implementations for production applications.

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Support

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

Documentation

Comprehensive guides and examples

API Reference

Complete endpoint documentation
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.
Ready to start sending emails? Check out our Quick Start Guide or explore our Authentication documentation.