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ONE Engine Array Last
x402
ONE Engine Array Last 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).
Returns the last element of an array, indicating whether a value was found.
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 boolean 'found' field indicating whether the array had any elements, and a 'value' field containing the last element of the array (or null/absent if empty).
Example use cases
Last log entry retrieval
“I have a list of log entries ["boot", "login", "error", "shutdown"] — can you get me the very last one?”
Most recent queue item
“Given this task queue ["task1", "task2", "task3"], what's the last task currently waiting?”
Final value in pipeline output
“Here are the results from my data pipeline: [10, 42, 7, 99] — what's the last value that came out?”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v1/array/last?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs a cheap, reliable, pay-per-call primitive to extract the last element of an array without running custom code. Ideal when operating in an x402-enabled agent environment on Base where microtransactions are supported and compute resources are constrained.
Side effects
- Empty array returns found: false with no value
- Missing 'values' field in request body causes a validation error
- Non-array input for 'values' may cause parsing failure
- Network or worker errors may return 5xx responses
- Payment failure via x402 may result in 402 response blocking execution
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| values | array |
Output
Schema · Response
{
"type": "json",
"example": {
"found": true,
"value": "c"
}
}Tags
x402
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