# Delx Commerce — JSON Cross Field Equal

> Delx Commerce — JSON Cross Field Equal 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 fields within a JSON object for equality and returns a verifiable match result with cryptographic evidence

## Facts

- Endpoint: POST https://commerce.delx.ai/api/v1/x402/json-cross-field-equal?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-commerce-json-cross-field-equal-d18a6877
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xY64eboqvgpTV5C9oqA4o

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 delx-commerce-json-cross-field-equal-d18a6877 -d '<json body>'
```

Example prompt: In this JSON object {"order_total": 10, "payment_amount": 10, "user_id": 42}, check whether the fields 'order_total' and 'payment_amount' are equal and give me a verifiable result.

## When to prefer this

Choose this endpoint when you need a lightweight, cryptographically verifiable, pay-per-use field equality check on a JSON object without setting up infrastructure or accounts. It is ideal for agents that need auditable proof of comparison (via SHA-256 evidence) rather than just a boolean result, and when the comparison must be guaranteed stateless (no data retained). Prefer it over rolling your own comparison logic when verifiability and receipts matter.

## Known failure modes

- Field name not found in object — returns null values for left/right with matched: false
- Object exceeds 128 properties — rejected with validation error
- Field name string exceeds 8192 characters — rejected
- Malformed JSON object input — parse error returned
- Payment not completed via x402 — 402 Payment Required response

## 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 JSON object containing the values of both compared fields, a boolean 'matched' flag indicating equality, the operation status ('pass' or 'fail'), and an evidence block with a SHA-256 hash of the input, confirmation that no data was retained, and the count of external calls made (always 0), enabling verifiable, auditable comparisons.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "object": {
   "type": "object",
   "description": "Object supplied to JSON Cross Field Equal; used only for this bounded calculation and processed in memory without retention.",
   "maxProperties": 128,
   "additionalProperties": true
  },
  "left_field": {
   "type": "string",
   "maxLength": 8192,
   "description": "Left Field supplied to JSON Cross Field Equal; used only for this bounded calculation and processed in memory without retention."
  },
  "right_field": {
   "type": "string",
   "maxLength": 8192,
   "description": "Right Field supplied to JSON Cross Field Equal; used only for this bounded calculation and processed in memory without retention."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "left": 10,
   "right": 10,
   "matched": true
  },
  "schema": "delx/util-json-cross-field-equal/v1",
  "status": "pass",
  "evidence": {
   "retained": false,
   "input_sha256": "ca96ab3c4e08fd0bc3ad129dc6be30b34456bf51239c8408dacaa3ac35bb03fe",
   "external_calls": 0
  },
  "operation": "data_batch:json_cross_field_equal"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-commerce-json-cross-field-equal-d18a6877/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from commerce.delx.ai](https://www.zero.xyz/host/commerce.delx.ai/llms.txt)