After a successful public review period early 2019, the SDMX-TWG has prepared a Technical Standard for SDMX-JSON Structure Message, and asked the SDMX secretariat to approve the public release.

The SDMX-JSON standard is a JSON (JavaScript Object Notation) based data exchange message format designed for and therefore responding to the main use case of data discovery and visualisation on the web. The proposed format is aligned also with the JSON API specification.

JSON is a widely used standardised lightweight data-interchange format. SDMX-JSON with a generic message format that supports the different types of data structures will ease writing software for the web that consumes SDMX data resources. It should allow for an efficient client-server exchange, and easy parsing. Testing and development of the format has focused on JavaScript applications running in web browsers.

The SDMX-JSON message formats supports the SDMX 2.1 Information Model and work together with the SDMX 2.1 RESTful Web Services API.