# Json Schema Check

Build-time release reference. Runtime readiness, deployment, payment settlement and external indexing are not evaluated here. Prices are proposed; this file cannot authorize execution or payment.

Use to validate tool output with a bounded JSON Schema subset: scalar types, objects, arrays, enum/const, limits and combinators. Rejects $ref, regex and unsupported keywords; not a full draft validator.

Release: 0.29.0. Built: 2026-10-06T15:38:00Z.

## Choose for
- Validate a supplied value against the explicitly supported bounded schema subset.

## Outside this profile
- Full JSON Schema draft conformance, $ref resolution, or regex validation.

Proposed nominal USD 0.01 per successful call; payer fees excluded. No verified runtime availability.

- [Exact release contract](/reference/services/json-schema-check.json)
- [Input schema](/reference/schemas/json-schema-check.input.json)
- [Output schema](/reference/schemas/json-schema-check.output.json)
- [Fixed example](/reference/examples/json-schema-check.json)
- [Complete HTML reference](/discover/tools/json-schema-check)