# ONE Engine Array Stats Pack (Tier 6)

> ONE Engine Array Stats Pack (Tier 6) is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0035/call, status unknown (last checked 2026-10-02).

Computes statistical metrics over an array of numeric values, returning tier-6 level results via a pay-per-call x402-enabled API.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v2/array-stats-pack/t6?utm_source=zero.xyz
- Price: $0.0035/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/one-engine-array-stats-pack-tier-6-74f94c9d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Gi6kkfkfpZ7vraYxRBEL0

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 one-engine-array-stats-pack-tier-6-74f94c9d -d '<json body>'
```

Example prompt: Can you run array stats on this list of values — [12.4, 7.8, 34.1, 9.0, 22.5, 15.3] — and give me the statistical summary using the ONE Engine stats pack?

## When to prefer this

Choose this endpoint when you need fast, low-cost ($0.0035 USDC) statistical computation over a numeric array and are already operating within an x402-enabled payment flow on Base. It is well-suited for autonomous agents that need on-demand descriptive statistics without managing their own math infrastructure. Prefer it over heavier analytics APIs when only basic-to-intermediate array statistics are needed and cost-per-call efficiency matters.

## Known failure modes

- Empty or missing 'values' array returns an error or empty result
- Non-numeric values in the array may cause computation errors or be silently ignored
- Payment failure via x402 protocol results in 402 response and no computation
- Very large arrays may hit payload size or timeout limits on Cloudflare Workers
- Malformed JSON body returns a 400 bad request error

## How this service works

Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.

## Output

A JSON object containing the tier level (6) and tier-dependent statistical output, which likely includes metrics such as mean, median, standard deviation, min, max, variance, and possibly percentiles or other descriptive statistics computed over the submitted array of values.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "values": {
   "type": "array"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "tier": 6,
  "result": "Tier-dependent output"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/one-engine-array-stats-pack-tier-6-74f94c9d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from one-search.one-engine.workers.dev](https://www.zero.xyz/host/one-search.one-engine.workers.dev/llms.txt)