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Overview

ArtPort authenticates your API requests using your organization’s API token, which must be included every time.
Requests without a token will return a 401 Unauthorized response.
In order to use the API, your organization requires a subscription. If you do not have a subscription, then all requests will return a 402 Payment Needed response.

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Authorization

To authenticate, supply your API token in the request’s header. You should configure the header so it uses bearer authentication e.g. 
request.headers.authorization = 'Bearer 2xH8eAQR...';

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Headers and Format

The ArtPort API accepts request bodies in JSON format. When sending a request, you should include the following headers to indicate that you are sending and expecting JSON: 
Accept: application/json
Content-Type: application/json