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v1.1

Unosend Documentation

Welcome to the Unosend documentation. Learn how to integrate our email API into your applications and start sending emails in minutes.

Quick Start

Get up and running in 5 minutes

Send Your First Email

Learn the basics of sending emails

Domain Setup

Verify your sending domain

Authentication

Secure your API requests

Quick Example

Send your first email with a simple API call:

cURL
curl -X POST https://www.unosend.co/api/v1/emails \
  -H "Authorization: Bearer un_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "from": "hello@yourdomain.com",
    "to": ["user@example.com"],
    "subject": "Welcome to Unosend!",
    "html": "<h1>Hello World</h1><p>Welcome to Unosend!</p>"
  }'

API Overview

Unosend provides a simple REST API for all email operations:

POST/v1/emails
GET/v1/emails
POST/v1/domains
POST/v1/domains/:id/verify
POST/v1/audiences
POST/v1/contacts
POST/v1/webhooks
POST/v1/templates

Base URL

All API requests should be made to:

https://www.unosend.co/api/v1

Key Features

Fast Delivery

Emails delivered in milliseconds with global infrastructure

High Deliverability

99%+ inbox placement with DKIM/SPF/DMARC

Real-time Webhooks

Get instant notifications for all email events

Simple Auth

API keys with un_ prefix for easy identification