Specification
The latest draft is v4. The specification is split into three parts:
| JSON Schema Core | defines the basic foundation of JSON Schema |
| JSON Schema Validation | defines the validation keywords of JSON Schema |
| JSON Hyper-Schema | defines the hyper-media keywords of JSON Schema |
They are also available as Internet Drafts on the IETF site: core, validation and hyper-schema.
Meta-schemas
The meta-schemas are the schemas which define the JSON Schema and Hyper-Schema formats.
| Core/Validation Meta-Schema | Used for schemas written for pure validation. |
| Hyper Meta-Schema | Used for schemas written for validation and hyper-linking. |
Standard schemas
These sample schemas describe simple data structures which can be expressed as JSON:
| Geographic Coordinate | a location as longitude and latitude |
| Card | a microformat-style representation of a person, company, organization, or place |
| Calendar | a microformat-style representation of an event |
| Address | a microformat-style representation of a street address |