# Delx Commerce — JSON Array Validator

> Delx Commerce — JSON Array Validator 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).

Validates whether a given value is a JSON array, returning a boolean result via a pay-per-call API.

## Facts

- Endpoint: POST https://commerce.delx.ai/api/v1/x402/is-json-arr?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-array-validator-bd84722d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QxP2I3NPM_5EIHuPg8acn

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-array-validator-bd84722d -d '<json body>'
```

Example prompt: Check if this value is a JSON array: [1, 2, 3] — I need a true/false answer before I pass it to the next step in my pipeline.

## When to prefer this

Use this endpoint when you need a fast, cheap, pay-per-use type check on a JSON value with no signup or API key required, especially in agent pipelines that process dynamic or untrusted data and need to confirm array structure before continuing. Prefer over writing inline type-check logic when auditability and verifiable delivery matter.

## Known failure modes

- Missing or malformed 'value' field in request body may result in an error or unexpected false result
- Payment failure via x402 protocol will prevent execution
- Non-JSON request bodies will be rejected
- Extremely large nested arrays may cause latency spikes

## 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 with a boolean 'result' field (true if the input is a JSON array, false otherwise) and a 'schema' field identifying the response format as 'delx/util-is-json-arr/v1'.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "value": {
   "type": "array",
   "description": "Input field: value."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": true,
  "schema": "delx/util-is-json-arr/v1"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-commerce-json-array-validator-bd84722d/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)