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The National Biomedical Imaging Archive (NBIA) REST APIs provide advanced features that are geared towards developers seeking to integrate searching and downloading TCIA data into their own web and desktop applications. For information about creating basic queries and downloading data for image analysis, refer to the NBIA Search REST API Guide and NBIA Search with Authentication REST API Guide.
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Accessing the National Lung Screening Trial (NLST) collection
Due to its size, the National Lung Screening Trial (NLST) collection lives on a separate NBIA server. Since Since this server only holds the public NLST collection, there is no reason to create an API token with your own credentials. To access these data via the Advanced REST API, you must change the URL to obtain the authentication token from https://nlst.cancerimagingarchive.net/nbia-api/oauth/token. You can then use https://nlst.cancerimagingarchive.net/nbia-api/services/ to make REST API calls. In both cases, the beginning of the URL is changed from "services" to "nlst.". Examples of requesting a token and performing an API query are shown below:
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