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agentshelf.syntexa.ch JSON Schema 2020-12 Validator
x402
agentshelf.syntexa.ch JSON Schema 2020-12 Validator is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-02).
Validates a JSON value against a JSON Schema 2020-12 schema, handling dialect-specific edge cases like exclusive bounds and format keywords.
Price / call$0.009
Success—
StatusUnknown
How this service works
Call when an agent needs a limited JSON Schema 2020-12 check. Dialects disagree on exclusive bounds and format. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/check-schema-2020-12 first.
Output
Returns a validation outcome indicating whether the JSON value conforms to the provided JSON Schema 2020-12 schema, including any specific errors such as exclusive bound violations or format keyword mismatches.
Example use cases
API request payload validation
“Validate this JSON object against my 2020-12 schema before I send it to the API — the schema uses exclusiveMinimum and a format: date field, so I want to make sure those are handled correctly.”
Schema migration compatibility check
“I just migrated my schema from draft-07 to JSON Schema 2020-12 and I need to verify this sample data still passes — can you run it through a 2020-12 validator and tell me if there are any violations?”
CI pipeline data contract verification
“Check whether this JSON document satisfies the 2020-12 schema I'm using as a data contract — flag any errors including issues with exclusive bounds or format annotations.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/check-schema-2020-12?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you specifically need JSON Schema 2020-12 dialect validation, particularly when your schema relies on exclusive bounds (exclusiveMinimum/exclusiveMaximum) or format keyword behavior that differs between drafts. Use it when the free sandbox endpoint (/v1/sandbox/check-schema-2020-12) is unavailable or rate-limited. Prefer this over generic validators when dialect correctness is critical.
Side effects
- Invalid or malformed JSON schema provided — returns schema parse error
- JSON value exceeds 20,000 character limit — returns payload too large error
- Unsupported schema dialect keyword causes parsing failure
- Payment of $0.009 USDC not provided — returns 402 Payment Required
- Network timeout or service unavailability
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| data | — | JSON value for schema-check SKUs. Omit it on string checks such as email or IBAN. |
| value | string | Value to check. The route description names the format: email, phone, IBAN, postal code, VAT, national id, or similar. |
| schema | — | JSON Schema document for schema-check SKUs. Omit it on string checks. |
Tags
x402
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