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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, $0.0015/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$0.0015
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. The response will have the input array's elements in reverse order, potentially scoped by the optional offset and size parameters.
Example use cases
Reverse a leaderboard ranking
“I have a leaderboard array ["Alice","Bob","Carol","Dave"] ranked from best to worst — can you reverse it so it goes from worst to best?”
Invert a time-series data sequence
“Reverse this array of timestamps for me so the oldest entries come first: ["2024-06-01","2024-05-15","2024-04-30","2024-04-01"]”
Flip a priority queue for processing
“I have a task queue ["low","medium","high","critical"] and I want to process it in reverse priority order — flip the array around for me.”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/array/reverse/t4?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a simple, reliable, pay-per-call array reversal without standing up your own compute or managing dependencies. Ideal for autonomous agents that need deterministic utility operations on small-to-medium arrays (up to 1000 elements) and are already operating on the Base/x402 payment rail at $0.0015 per call.
Side effects
- Array exceeds 1000 items — request rejected with validation error
- Missing required 'values' field — returns schema validation error
- Invalid payment or insufficient USDC balance — x402 payment failure before processing
- Malformed JSON body — returns parse error
- Network timeout on Cloudflare Workers edge
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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