# agentshelf.syntexa.ch JSON Schema Draft-07 Validator

> agentshelf.syntexa.ch JSON Schema Draft-07 Validator is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.007/call, status unknown (last checked 2026-10-24).

Validates a JSON value against a JSON Schema draft-07 schema, returning compliance results with awareness of dialect-specific nuances like exclusive bounds and format keywords.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/check-schema-draft-07?utm_source=zero.xyz
- Price: $0.007/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-24
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentshelf-syntexa-ch-json-schema-draft-07-validator-35f35583
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XYwKAkDUSK_SWMBnmpmA0

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability agentshelf-syntexa-ch-json-schema-draft-07-validator-35f35583 -d '<json body>'
```

Example prompt: Check whether this JSON value {"age": 25, "name": "Alice"} conforms to this draft-07 schema: {"type":"object","properties":{"age":{"type":"integer","exclusiveMinimum":0},"name":{"type":"string"}},"required":["age","name"]} — I need to know if it passes draft-07 validation including exclusive bounds handling.

## When to prefer this

Prefer this endpoint when you specifically need JSON Schema draft-07 validation with awareness of draft-07 dialect nuances such as the boolean form of exclusiveMinimum/exclusiveMaximum and format keyword behavior. Use only when the free sandbox endpoint (POST /v1/sandbox/check-schema-draft-07) is unavailable or insufficient. Avoid for draft-04, draft-06, or draft-2019-09+ schemas where semantic differences may produce incorrect results.

## Known failure modes

- Schema provided is not valid JSON Schema draft-07 — returns error or undefined behavior
- Value field is empty or exceeds 20,000 character limit — returns validation or truncation error
- Dialect ambiguity between draft-04 and draft-07 exclusive bounds semantics may cause unexpected results
- Malformed JSON in value or schema fields — returns parse error
- Format keyword validation may differ from other validators depending on dialect implementation

## How this service works

Call when an agent needs a limited JSON Schema draft-07 check. Dialects disagree on exclusive bounds and format. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-schema-draft-07 first.

## Output

Returns a validation result indicating whether the provided JSON value conforms to the given JSON Schema draft-07 schema, including details on any violations, particularly around dialect-specific behaviors like exclusiveMinimum/exclusiveMaximum bounds and format keyword handling.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "data": {
   "examples": [
    {
     "a": 1
    }
   ],
   "description": "JSON value for schema-check SKUs. Omit it on string checks such as email or IBAN."
  },
  "value": {
   "type": "string",
   "examples": [
    "{\"a\":1}"
   ],
   "maxLength": 20000,
   "minLength": 1,
   "description": "Value to check. The route description names the format: email, phone, IBAN, postal code, VAT, national id, or similar."
  },
  "schema": {
   "examples": [
    {
     "type": "object",
     "required": [
      "a"
     ],
     "properties": {
      "a": {
       "type": "integer"
      }
     }
    }
   ],
   "description": "JSON Schema document for schema-check SKUs. Omit it on string checks."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentshelf-syntexa-ch-json-schema-draft-07-validator-35f35583/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentshelf.syntexa.ch](https://www.zero.xyz/host/agentshelf.syntexa.ch/llms.txt)