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ONE Engine Array Reverse
x402
ONE Engine Array Reverse is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0009/call, status unknown (last checked 2026-10-02).
Reverses the order of elements in a JSON array, returning the reversed array and its count.
Price / call$0.0009
Success—
StatusUnknown
How this service works
Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.
Output
Returns a JSON object with a 'count' integer indicating the number of elements, and a 'values' array containing the input items in reversed order.
Example use cases
Reverse ranked leaderboard order
“I have a leaderboard array sorted from best to worst like ["Alice","Bob","Carol"] — can you reverse it so the worst performer is first?”
Flip chronological event list
“Take this list of events in chronological order and flip it so the most recent one comes first: ["Jan launch","Feb update","Mar release"].”
Invert priority queue for processing
“I've got a task priority queue ["low","medium","high","critical"] and I need it reversed so critical tasks come last for bottom-up processing.”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v1/array/reverse?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent needs a simple, cheap, stateless array reversal via a pay-per-call API on Base using x402 micropayments, especially in automated pipelines where no local compute is preferred or the reversal is one step in a larger agentic workflow.
Side effects
- Array exceeds 1000 items — request rejected
- Malformed JSON input — parsing error returned
- Empty array — returns count 0 and empty values array
- Payment not included or insufficient — HTTP 402 returned
- Non-array value passed in 'values' field — type validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| values | array | JSON array, maximum 1000 items |
Output
Schema · Response
{
"type": "json",
"example": {
"count": 3,
"values": [
"c",
"b",
"a"
]
}
}Tags
x402
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