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JSON Cross Field Order
x402
JSON Cross Field Order is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Validates or checks the ordering relation (e.g. less-than, greater-than, equal) between two numeric fields within a JSON object, returning a versioned deterministic result.
Price / call$0.001
Success—
StatusUnknown
How this service works
JSON Cross Field Order: JSON Cross Field Order checks two numeric fields for a caller-selected ordering relation from bounded caller-supplied values without an external provider. Call JSON Cross Field Order before an agent hands structured data or a batch plan to a downstream tool with a stricter contract. Returns the bounded transformation or validation finding with counts, normalized values, and a versioned result contract for JSON Cross Field Order as versioned deterministic JSON. Price: $0.…
Output
Returns a versioned deterministic JSON result containing the validation outcome (pass/fail), the normalized values of both compared fields, counts, and a versioned result contract indicating whether the specified ordering relation holds between the two fields.
Example use cases
Budget range constraint validation
“Before I send this pricing object to the order system, check that 'budget_floor' is less than 'budget_ceiling' — here's the object: {"budget_floor": 200, "budget_ceiling": 500, "currency": "USD"}, use relation 'lt'.”
Inventory threshold ordering check
“I need to verify that 'reorder_point' is less than or equal to 'max_stock' in this inventory record: {"reorder_point": 30, "max_stock": 100, "sku": "ABC-9"}, relation should be 'lte'.”
Timeline field ordering assertion
“Can you confirm that 'start_block' is strictly less than 'end_block' in this schedule object: {"start_block": 1000, "end_block": 2500, "job_id": "j-42"}, using the 'lt' relation?”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/json-cross-field-orderWhen to prefer
Use this endpoint when an agent needs to enforce a cross-field numeric ordering constraint on a JSON object before handing it off to a downstream tool or system with strict data contracts. It is ideal when you need a deterministic, versioned, auditable validation result rather than writing ad-hoc comparison logic. Prefer it over general-purpose code execution when you want a lightweight, pay-per-call, stateless check with a standardized output envelope.
Side effects
- Field names not found in the object — returns an error or failed validation result
- Specified fields are non-numeric — type mismatch error
- Invalid or unrecognized relation string — returns an error indicating unsupported relation
- Object exceeds maxProperties 128 limit — request rejected
- Missing required fields (object, relation, left_field, right_field) — validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| object | object | Object supplied to JSON Cross Field Order; used only for this bounded calculation and processed in memory without retention. |
| relation | string | Relation supplied to JSON Cross Field Order; used only for this bounded calculation and processed in memory without retention. |
| left_field | string | Left Field supplied to JSON Cross Field Order; used only for this bounded calculation and processed in memory without retention. |
| right_field | string | Right Field supplied to JSON Cross Field Order; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"left": 1,
"right": 10,
"passed": true,
"relation": "lte"
},
"schema": "delx/util-json-cross-field-order/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "0eefc5177112e97ab4f032636f3cff5f82ee8866f4f9bb4e74667c81c8bc5165",
"external_calls": 0
},
"operation": "data_batch:json_cross_field_order"
}
}Tags
x402
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