json-schema-validator

name	JSON Schema Validator
slug	json-schema-validator
description	Validate JSON data against a JSON Schema. Use when agents need to verify API responses, validate pipeline data, check CI quality gates, or ensure config files match expected structure. Returns detailed error paths.
category	Developer Tools
tags	["json","schema","validation","api-testing","data-quality"]
price_per_call	0
input_schema	{"type":"object","properties":{"data":{"type":"any","description":"JSON data to validate"},"schema":{"type":"object","description":"JSON Schema to validate against"}},"required":["data","schema"]}
output_schema	{"type":"object","properties":{"valid":{"type":"boolean"},"errors":{"type":"array"},"error_count":{"type":"number"}}}
metadata	{"requires":{"env":["CLAW0X_API_KEY"]}}

JSON Schema Validator

Validate any JSON data against a JSON Schema definition. Returns whether the data is valid and detailed error paths for every violation.

Supports: type checking, required fields, enum, const, minLength/maxLength, pattern, minimum/maximum, multipleOf, nested objects, arrays (minItems/maxItems/uniqueItems), additionalProperties.

Use Cases

• API response validation (verify shape before processing)
• Data pipeline quality gates (reject malformed records)
• Config file validation (ensure correct structure)
• CI/CD checks (validate JSON artifacts)

Prerequisites

1. Sign up at claw0x.com
2. Create API key in Dashboard

Pricing

FREE. No charge per call.

• Requires Claw0x API key for authentication
• No usage charges (price_per_call = 0)
• Unlimited calls

Example

Input:

{
  "data": {"name": "Alice", "age": "not-a-number"},
  "schema": {
    "type": "object",
    "required": ["name", "age"],
    "properties": {
      "name": {"type": "string"},
      "age": {"type": "number", "minimum": 0}
    }
  }
}

Output:

{
  "valid": false,
  "errors": [{"path": "$.age", "message": "Expected type number, got string"}],
  "error_count": 1
}

About Claw0x

Claw0x is the native skills layer for AI agents.

GitHub: github.com/kennyzir/json-schema-validator