# ONE Engine Array Rotate

> ONE Engine Array Rotate is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.018/call, status unknown (last checked 2026-10-02).

Rotates a JSON array by a given offset, optionally comparing against a second array.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/array/rotate/t9?utm_source=zero.xyz
- Price: $0.018/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-rotate-bef2ad3d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BS54z5s1X5N3OOw6fNdvM

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-rotate-bef2ad3d -d '<json body>'
```

Example prompt: Rotate this array [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] by an offset of 3 positions using ONE Engine's array rotate utility.

## When to prefer this

Choose this endpoint when you need a cheap, stateless, pay-per-call array rotation for autonomous agent workflows on Base using x402 micropayments. Ideal for lightweight utility operations where spinning up custom code is overkill and cost-per-call is a priority.

## Known failure modes

- Array exceeds 1000 items — request rejected
- Invalid or missing 'values' field — validation error
- Non-integer offset — type error
- Payment not provided or insufficient — 402 Payment Required
- Malformed JSON body — parse error

## How this service works

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

## Output

Returns a JSON object containing the rotated array, with elements cyclically shifted by the specified offset. The array wraps around so elements shifted past the end reappear at the beginning.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "values"
 ],
 "properties": {
  "size": {
   "type": "integer"
  },
  "other": {
   "type": "array",
   "description": "Optional comparison array"
  },
  "offset": {
   "type": "integer"
  },
  "values": {
   "type": "array",
   "description": "JSON array with at most 1000 items"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "additionalProperties": true
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/one-engine-array-rotate-bef2ad3d/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)