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Arch Tools — JSON Schema Validator
x402
Arch Tools — JSON Schema Validator is a paid API for AI agents from archtools.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).
Validates a JSON data string against a provided JSON Schema and returns whether the data conforms
Price / call$0.01
Success—
StatusUnknown
How this service works
Arch Tools — validate-data
Output
Returns a JSON object indicating whether the provided data is valid against the schema, along with any validation errors or constraint violations found during the check.
Example use cases
API response conformance check
“I just got back a response from an external API and I need to verify it matches our expected schema before processing it. The data is '{"id":"abc123","status":"active","amount":42.5}' and the schema requires 'id' to be a string, 'status' to be one of ['active','inactive'], and 'amount' to be a number. Can you validate it for me?”
User form input validation
“Before I save this user registration payload to the database, can you check it against our user schema? The data is '{"username":"jdoe","email":"jdoe@example.com","age":17}' and the schema says all three fields are required, email must match an email format, and age must be an integer of 18 or above.”
Config file schema enforcement
“I have a configuration JSON I generated and want to make sure it's valid before deploying. The data is '{"timeout":30,"retries":3,"endpoint":"https://api.myservice.com"}' and the schema says timeout and retries must be positive integers and endpoint must be a URI string. Can you validate it?”
Technical details
Endpoint
POSThttps://archtools.dev/v1/tools/validate-dataWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call JSON Schema validation step inside an agent workflow, especially when you lack a local validation library or want a hosted, stateless validation check. It is well-suited for validating individual payloads on demand rather than batch validation workloads.
Side effects
- Invalid JSON string in the 'data' field causes a parse error
- Malformed or invalid JSON Schema object causes schema compilation failure
- Missing required 'data' or 'schema' fields returns a 400 error
- Payment failure via x402 protocol blocks the request
- Schema references external $ref URIs that cannot be resolved
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| data | — | The JSON data to validate |
| schema | object | JSON Schema to validate against |
Tags
x402
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