Welcome to Sendly - Sendly API

What is Sendly?

Sendly is a highly reliable transactional email delivery platform. It gives you the infrastructure you need to send, track, and manage email at scale.

Why choose Sendly

Highly reliable: 99.9% deliverability
Easy to use: simple, documented API
JavaScript/TypeScript SDK: quick integration into your projects
24/7 support: we’re here to help
Scalable: handle millions of emails with ease

Getting started

Choose how you want to start:

Quickstart guide

Learn the basics in 5 minutes.

Authentication

Set up your API key.

API reference

Explore every endpoint.

Best practices

Improve deliverability.

Use cases

Sendly is ideal for:

Registration confirmations: send automated welcome emails
Password recovery: manage secure reset links
Order notifications: keep customers informed
Alerts and reports: share important events in real time
Transactional newsletters: deliver personalized updates

Quick integration

import { Sendly } from '@sendlyapp/sdk'

const client = new Sendly('your_api_key')

await client.emails.send({
  from: 'noreply@yourdomain.com',
  to: 'user@example.com',
  subject: 'Welcome',
  html: '<h1>Hello!</h1><p>Thanks for signing up.</p>'
})

Need help? Contact our team at support@usesendly.app

Quickstart Guide

​What is Sendly?

​Why choose Sendly

​Getting started