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Overview

The Subtotal API lets brands and developers build experiences around customer-permissioned retail purchases. The Subtotal API follows REST principles and uses standard HTTP methods and JSON payloads, making it straightforward to work with in any modern programming language or framework.

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Base URL

Append an endpoint to the base URL root address to form a complete request URL. 
https://api.subtotal.com

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Authentication

All requests must include an API key for authentication. Include the following header in each request: 
headers = {
  "X-Api-Key": "{yourkeyvalue}"
}

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Authorization

We reserve the Authorization header for endpoints that require a connection token. 
headers = {
  "Authorization": "Bearer: {connection_token}"
}