npm install --save @types/json-schema
This package contains type definitions for json-schema 4.0, 6.0 and (https://github.com/kriszyp/json-schema).
Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/json-schema.
These definitions were written by Boris Cherny, Lucian Buzzo, Roland Groza, and Jason Kwok.