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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, $0.0065/call, status unknown (last checked 2026-10-02).
Reverses the order of elements in a JSON array, with optional offset and size controls
Price / call$0.0065
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 containing the reversed array, with elements in opposite order from the input. Optional offset and size parameters allow reversing only a subset of the array.
Example use cases
Reverse paginated result list
“I have a list of search results returned in ascending order — can you reverse them so the last item comes first? The array is ["result1", "result2", "result3", "result4", "result5"].”
Flip leaderboard rankings
“Reverse this leaderboard array so the last-place entry shows up first: ["Alice", "Bob", "Carol", "Dave", "Eve"]. I want to display it from lowest to highest score.”
Reverse time-series data points
“I have these timestamps in chronological order and I need them reversed so the most recent comes first: ["2024-01-01", "2024-02-01", "2024-03-01", "2024-04-01"].”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/array/reverse/t7?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a simple, cheap, pay-per-call array reversal without spinning up your own compute. Ideal for autonomous agents on Base using x402 micropayments that need lightweight utility operations at $0.0065 per call. Best for arrays up to 1000 elements where a hosted utility call is more convenient than implementing reversal logic.
Side effects
- Array exceeds 1000 items — request rejected
- Invalid JSON array in values field — validation error
- Missing required 'values' field — 400 error
- Payment failure via x402 — 402 response before processing
- Malformed request body — schema validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| size | integer | |
| other | array | Optional comparison array |
| offset | integer | |
| valuesrequired | array | JSON array with at most 1000 items |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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