Platform

Solutions

Courier gives your transactional email API superpowers

Courier provides the infrastructure needed to turn your email API into a complete notification system. Manage templates, deliverability, routing, and user preferences all in a single API.

Get started for free

Request a Demo

Powering next-generation startups and established companies

More than just an email API

Courier goes way beyond the traditional transactional email APIs. Courier is your complete notification infrastructure.

Bring Your Own Provider

Send transactional emails through any and all email providers. SendGrid, Postmark, Mailgun, Gmail, we support them all.

Email Template Designer

We beleive transactional emails should still look great. Our designer lets you build beautiful and dynamic email templates.

Automated Email Workflows

Design complex automated email workflows with steps that include delay, check data, send to list, and more.

Analyze Detailed Logs

Courier provides detailed logs of every email sent through our API. This helps identify issues and ensure deliverability.

Template management made easy

Managing email templates is a pain that is compounded when you’re adding additional channels. Courier’s templating system is omnichannel and supports drag-and-drop designs via Courier Studio, and JSON-based templates through Courier Elemental.

Get started for free Courier Studio Sandbox

List Sends

Complex Email List Sends

Courier allows you to design and execute dynamic, customized list sends with a single API call. Perfect for product updates, customized newsletters, and more.

1
// Send an email welcoming a new user to your product.
2
// Send a weekly product usage email to a list of users, 
3
// pulling the data for each user from an endpoint.
4
{
5
  "message": {
6
    "to": {
7
      "list_id": "weekly_subscribers",
8
      "template": "weekly_product_digest",
9
      "data_source":  {
10
        "action": "fetch-data",
11
        "webhook": { "url": "https://main.app/digest" }
12
      }
13
    }
14
  }
15
}

Built for Developers

Email API With Superpowers

The Courier API allows you to deliver complex email usecases with a single API call.

Check out our docs

SendGrid
Email
Mailgun
Email
Amazon SES
Email
SparkPost
Email
Twilio
SMS
MessageBird
SMS
Plivo
SMS
Telnyx
SMS
Firebase
Push
One Signal
Push
Airship
Push
Expo
Push
WhatsApp
Chat
Microsoft Teams
Chat
Slack
Chat
FB Messenger
Chat

Integrations

We Support Your Provider

Courier supports sending through any provider you choose, even Gmail. We also support sending through SMS, chat, and push providers for multi-channel notifications.

View all email providers

Centralized analytics and logging

Courier allows you to observe, analyze, and understand the notification experience your users are receiving across all channels and providers—making it far easier to debug issues, understand trends, and optimize your user experience.

Get a Demo

Testimonials

What our customers are saying

We've been using Courier for over a year now, and it's probably saved us more pain (and time!) than any other single platform that we use. The product is getting better all the time and the team is incredible!
Neal Jean
CEO, Beacons
We are big fans of Courier. We use it to send all of our notifications. The platform is extremely easy to use and the customer support from the Courier team is supreme. I strongly recommend it!
Al Yang
CEO, Safebase
We love Courier. We rely on it heavily to send various communications. The designer is a fantastic tool. With it, we are able to get our UX designers working directly on the templates and we can make updates and have them live in seconds.
Yousef Ashparie
Principal Software Engineer, Expel