2.4.0 spase://SMWG/Document/HAPI/Specification/3.0.0 The Heliophysics Application Programmer's Interface Specification 3.0.0 https://doi.org/10.5281/zenodo.4757597 2021-04-01T00:00:00.000Z 2021-04-01T00:00:00.000Z Release 3.0.0. Initial release of specification. This specification describes a data delivery standard for time series data. It is used within the Heliophysics community, but is generic in that it offers a very simple interface for serving data, similar to what many providers are already using. This version of the specification has a few changes from the previous version - see the update list at the beginning. There are various Github projects providing software implementing server and client elements that use the standard.nents of such a data delivery system. This includes repositories, registries and services. SPASE Group Weigel, Robert, Vandegriff, Jon, Faden, Jeremy, Roberts, D. Aaron, King, Todd, Candey, Robert, Harris, Bernard. 2021-04-01T00:00:00.000Z Zenodo spase://SMWG/Person/Robert.S.Weigel Publisher spase://SMWG/Repository/Zenodo https://zenodo.org/record/4757597/files/HAPI-data-access-spec-3.0.0.pdf?download=1 PDF HAPI Specification Specification application/pdf