JSON Schemas provide auto-completion and validation features for JSON documents in supported editors like Visual Studio and Visual Studio Code. Tooltips are also available to provide information about various properties and values. The JSON API includes a list of schema files for known JSON file formats, which can be used in command line validators and editor auto-completion tools. Various editors and IDEs have direct support for schemas hosted on SchemaStore.org. Over 700 GB of JSON schema files are served daily from SchemaStore.org, which is maintained by JSON Schema loving volunteers. Premium sponsors, including Microsoft, contribute to keep the project alive. Contributions of new schemas, modifications, and test files are encouraged to include schemas for commonly known JSON file formats.
https://www.schemastore.org/json/