JSON Schema

JSON Schema: The declarative standard for validating JSON data structure, ensuring consistency and interoperability across all systems.

JSON Schema provides a robust, declarative vocabulary for validating JSON documents. It defines the precise structure, data types (e.g., `string`, `number`, `object`), and constraints (e.g., `required` properties, `minimum` values, `pattern` regex) your data must adhere to. This standardization is critical for API development (payload validation), configuration management, and reliable data exchange, ensuring all integrated systems confidently process consistent data. The specification (currently Draft 2020-12) promotes interoperability and streamlines testing by catching errors early, significantly reducing development time and code complexity.

https://json-schema.org/