Welcome to HiSend

Welcome to the HiSend Documentation. HiSend is a modern infrastructure platform for sending, receiving, and managing emails programmatically, designed completely around maximizing deliverability and offering an exceptional developer experience.

Overview

HiSend gives you the power to:

Send Emails Reliably: Utilize endpoints optimized for high deliverability.
Implement Custom Webhooks: React dynamically to incoming messages globally or per-domain.
Manage Domains & API Keys: Secure your infrastructure programmatically.
Drop-in SMTP Support: Use our native SMTP server alongside modern HTTP REST APIs.

Where to start?

Quickstart Guide

Learn how to add a domain, get your API key, and send your first email.

Node.js SDK

Install our official Node.js SDK and learn how to use it in your projects.

API Reference

Dive deep into our REST endpoints for complete programmatic control.