CORE JSON Validator

x402

CORE JSON Validator is a paid API for AI agents from api.coregroupimmo.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-13).

Validates a JSON data document against a restricted draft-07 JSON Schema and returns a boolean valid/invalid result with error details

Price / call$0.002

Seller volume →—

Success—

StatusUnknown

How this service works

Use this service before importing or publishing JSON to check it against a restricted draft-07 schema. Send dataJson and schemaJson as JSON-encoded strings. Max 256 KiB UTF-8 each, depth 32; bounded node and work limits. Supports types, required properties, items, enums and numeric/length bounds. No regex, combinators or external references. Invalid business data returns valid=false.

Output

Returns a JSON object containing a boolean 'valid' field indicating whether the data passed schema validation, plus an array of error objects describing any violations including the failing path, expected constraints, and actual values found — allowing the caller to pinpoint exactly which fields or values are non-conformant.

Example use cases

Pre-import ETL data check

“I'm about to load this JSON file into our database — can you validate it against our data schema first to catch any missing required fields or out-of-range values before it breaks the pipeline?”

API response conformance check

“We just got a JSON response from a third-party API and I need to make sure it matches our expected draft-07 schema — can you run a validation and tell me if it's valid or list what's wrong?”

User-submitted config validation

“A user just submitted a configuration JSON file through our portal — please validate it against our restricted schema to confirm all required properties are present and enum values are correct before we accept it.”

Technical details

Endpoint

POSThttps://api.coregroupimmo.com/v1/json/validate?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need a lightweight, bounded JSON Schema validation step before importing, publishing, or processing JSON data and want strict control over resource usage. It is ideal for restricted draft-07 schemas using only types, required, items, enums, and numeric/length bounds — without needing regex, combinators, or external references. Prefer it over general-purpose schema validators when operating in cost-sensitive or automated agent pipelines where predictable pricing ($0.002/call), capped compute, and simple pass/fail results are sufficient.

Side effects

Input JSON exceeds 256 KiB limit — returns error indicating payload too large
Schema depth exceeds 32 levels — returns schema depth violation error
Schema uses unsupported features (regex patterns, combinators like anyOf/oneOf, external $ref) — returns unsupported schema feature error
Work cap of 50,000 units exceeded during validation — returns timeout/work-limit error
Malformed JSON in dataJson or schemaJson (not valid JSON strings) — returns parse error
Node count exceeds 10,000 for data or 2,000 for schema — returns node limit error

Input

Schema · Request body

Field	Type	Description
dataJson	string	JSON-encoded data, at most 256 KiB UTF-8, depth 32, 10000 nodes.
schemaJson	string	JSON-encoded restricted draft-07 schema: at most 256 KiB UTF-8, depth 32, 2000 nodes. No external references, regex or combinators. Work cap 50000.

Output

Schema · Response

{
  "type": "json",
  "example": {
    "result": {
      "valid": true,
      "counts": {
        "errors": 0,
        "dataNodes": 2,
        "schemaNodes": 7
      },
      "errors": [],
      "truncated": false
    },
    "service": "core-json-validator"
  }
}

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How this service works

Output

Example use cases

Pre-import ETL data check

API response conformance check

“We just got a JSON response from a third-party API and I need to make sure it matches our expected draft-07 schema — can you run a validation and tell me if it's valid or list what's wrong?”

User-submitted config validation

Technical details

Endpoint

POSThttps://api.coregroupimmo.com/v1/json/validate?utm_source=zero.xyz

When to prefer

Side effects

Input JSON exceeds 256 KiB limit — returns error indicating payload too large
Schema depth exceeds 32 levels — returns schema depth violation error
Schema uses unsupported features (regex patterns, combinators like anyOf/oneOf, external $ref) — returns unsupported schema feature error
Work cap of 50,000 units exceeded during validation — returns timeout/work-limit error
Malformed JSON in dataJson or schemaJson (not valid JSON strings) — returns parse error
Node count exceeds 10,000 for data or 2,000 for schema — returns node limit error

Input

Schema · Request body

Field	Type	Description
dataJson	string	JSON-encoded data, at most 256 KiB UTF-8, depth 32, 10000 nodes.
schemaJson	string	JSON-encoded restricted draft-07 schema: at most 256 KiB UTF-8, depth 32, 2000 nodes. No external references, regex or combinators. Work cap 50000.

Output

Schema · Response

{
  "type": "json",
  "example": {
    "result": {
      "valid": true,
      "counts": {
        "errors": 0,
        "dataNodes": 2,
        "schemaNodes": 7
      },
      "errors": [],
      "truncated": false
    },
    "service": "core-json-validator"
  }
}