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Delx Commerce — JSON Cross-Field Order Comparison
x402
Delx Commerce — JSON Cross-Field Order Comparison is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Compares two numeric fields within a JSON object using a specified relational operator and returns whether the comparison passed, with verifiable evidence.
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
Returns a result object containing the left and right field values, the relation used, and a boolean 'passed' flag indicating whether the comparison holds. Also includes a status string ('pass' or 'fail'), a schema identifier, and an evidence block with the input SHA-256 hash, a flag confirming no data was retained, and a count of zero external calls made — allowing verifiable, auditable confirmation of the comparison.
Example use cases
Budget vs price guard for e-commerce
“I have a product JSON like {"price": 49.99, "budget": 100.00} — can you verify that 'price' is less than or equal to 'budget' and confirm it passes?”
Validate event start before end date
“Make sure the 'start_epoch' field is less than the 'end_epoch' field in this record: {"start_epoch": 1700000000, "end_epoch": 1700086400} — use the 'lt' relation.”
Confirm inventory quantity within max limit
“Check this inventory record {"quantity_on_hand": 80, "max_capacity": 100} and verify that 'quantity_on_hand' is less than or equal to 'max_capacity'.”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/json-cross-field-order?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a lightweight, pay-per-use, verifiable cross-field numeric comparison on a JSON object without standing up custom validation logic. It is ideal for AI agents that need auditable evidence (SHA-256 hash, no-retention proof) that a comparison was performed correctly. Prefer it over custom code when you need an immutable, tamper-evident record of the validation result, or when operating in a zero-signup, micropayment (USDC on Base/Solana) context with exact per-call pricing.
Side effects
- Missing required fields (object, relation, left_field, or right_field) returns a validation error
- Specified field names not found in the provided object may return an error or null comparison
- Unsupported relation operator string may cause a processing error
- Object exceeds maxProperties limit of 128 and is rejected
- Payment via x402 fails or is insufficient, blocking the request
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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