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Data Sources

This documentation assumes that you already understand at least one common programming language and are generally familiar with JSON RESTful services. JSON specifies the format of the data returned by the REST service. REST refers to a style of services that allow computers to communicate via HTTP over the Internet. Click here for a list of best practices and additional information on where to start. The NVD is also documenting popular workflows to assist developers working with the APIs.

Source API

The Source API is used to easily retrieve detailed information on the organizations that provide the data contained in the NVD dataset.

The API is updated whenever a new source is added, or an existing source is modified. Data sources change so infrequently that users interested in this information may choose to limit their requests to once per day.

Base URL



Questions, comments, or concerns may be shared with the NVD by emailing nvd@nist.gov

Created September 20, 2022 , Updated August 3, 2023