Back when looking into JSON Feeds it didn’t link to its schema, but there’s one in SchemaStore/schemastore and sonicdoe/jsonfeed. You could validate a feed with a cli tool like check-jsonschema. $ check-jsonschema --schemafile jsonfeed-v1.1.json feed.json ok -- validation done The upside of the JSON Feed is a lot more human than technical in the sense that it’s a mapping of RSS/Atom to the js world. There are many people who prefer JSON over XML.