---
title: "Validate arbitrary JSON data against a JSON Schema draft-7 schema."
method: POST
path: "/v1/validate/schema"
tags: ["data"]
---

# Validate arbitrary JSON data against a JSON Schema draft-7 schema.

`POST /v1/validate/schema`

## Request

- Base URL: `https://api.agent-toolbox.ai`
- URL: `https://api.agent-toolbox.ai/v1/validate/schema`
- Auth: one of:
  - HTTP bearer
  - none

Cost: 1 credit(s). Free tier: 10 calls per IP (no auth).

## Request body

- ValidateSchemaRequest
  - `data` unknown
  - `schema` object, required
  - `policy` object
    - `mode` 'block' | 'flag' | 'audit'

## Response `200`

Success.

- ValidateSchemaResponse
  - `verdict` 'PASS' | 'FLAG' | 'BLOCK', required
  - `valid` boolean, required
  - `errors` object[], required
    - `path` string, required
    - `keyword` string, required
    - `message` string, required
    - `expected` unknown
    - `actual` unknown
  - `counts` object, required
    - `errors` integer, required
  - `certificate` string, required: Tamper-evident SHA-256 certificate.
  - `latencyMs` number, required: Server compute time in ms.

## Other responses

- `400`: Invalid request body.
- `402`: Free tier exhausted or insufficient credits.

---

[API](https://skmtc.dev/agent-toolbox/apis/agent-toolbox-ai-api.md) · [All operations](https://skmtc.dev/agent-toolbox/apis/agent-toolbox-ai-api/llms.txt) · [OpenAPI document](https://skmtc.dev/agent-toolbox/apis/agent-toolbox-ai-api/revisions/07132043190b?raw)