Internet Standard
After had been available as its "informational" specification since 2006, JSON was first standardized in 2013, as ECMA-404. , published in 2017, is the current version of the Internet Standard STD 90, and it remains consistent with ECMA-404. That same year, JSON was also standardized as ISO/IEC 21778:2017. The ECMA and ISO standards describe only the allowed syntax, whereas the RFC covers some security and interoperability considerations.