Schema.org TypeScript Type Definitions

schema-dts provides comprehensive TypeScript definitions for the Schema.org vocabulary, specifically designed for use with JSON-LD structured data. It aims to simplify the creation and validation of Schema.org markup by offering complete sets of discriminated type unions, enabling robust type-checking and IDE auto-completion. The package is currently at version 2.0.0 and frequently updates its typings to align with the latest Schema.org releases, such as v30, v28, v15, ensuring developers always have access to current definitions. A key differentiator is its strict type validation, which helps prevent common errors in JSON-LD implementation. Although hosted under the Google GitHub organization, the README clarifies it is not an officially supported Google product, but it is actively maintained.