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Python Quickstart

This quickstart demonstrates how to send messages from a Python application.


Python 3.7 or later is required.

  1. Make sure you have the latest version of Python installed.

  2. Sign up for Courier to get access to your API key.

  3. Add the channel(s) you wish to send your message to.

  4. Run pip install trycourier or poetry add trycourier to install the Courier Python SDK.

  5. Use the Courier class to access all of our endpoints.

  6. Add the following code and replace <YOUR_TOKEN> with your Courier API key:

    import os
    import courier

    from courier.client import Courier

    client = Courier(
    authorization_token="YOUR_TOKEN" # Defaults to COURIER_AUTH_TOKEN

    response = client.send(
    name: "Marty",
    title="Back to the Future",
    body="Oh my {{name}}, we need 1.21 Gigawatts!",


Explore how to customize your notification with more properties >

  1. Run your code. Upon running this API call, only a requestId will be returned.
    { "requestId": "87e7c05b-4f46-fda24e356e23" }
  2. Monitor the status of your notification (once sent) in the logs:


  1. How to add a channel?

    How to: Integrate a New Notification Channel - SMS, Email, Chat, or Push

  2. What's the difference between production and test API keys?

    Every Courier tenant has two notification development environments: “Live” and “Test”. The two environments are isolated from one another, and all the assets within them (templates, brands, tags, categories integrations, API keys, log data, etc.) belong only to that environment.

    Any changes made to a template and its associated assets are only applied within the current environment until you migrate the template and overwrite any changes to the corresponding Notification ID and assets in the other environment.

  3. How can I send to multiple users or contacts?

    You will need to create a list of users in Courier and

  4. How can I access user profiles from Courier?

    If you have your users saved in Courier's user database, you can replace the JSON "email" field in the "to" object with:

    • individual profiles with "user_id": "ADD_USER_ID"
    • list of multiple users: "list_id": "ADD_LIST_ID"


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