JSON Schema Validator API

JSON Schema Validator API — Validate JSON payloads against any JSON Schema (Draft 2020-12).

What you get

• POST /v1/json/validate — primary endpoint.
• X-API-Key authentication, per-key rate limits, audit log.
• OpenRouter-backed where AI is involved — no model keys to manage on your side.
• Interactive Swagger docs at api-json-validate.knowlez.com/docs.

Plans

• Starter — $9/mo · 50,000 validations included · $0.00005/validation overage.
• Pro — $29/mo · 500,000 validations included · $0.00003/validation overage.