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ONE Engine Array First
x402
ONE Engine Array First 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 first element of a provided 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
A JSON object with a 'found' boolean indicating whether the array had any elements, and a 'value' field containing the first element of the array if found (e.g. {"found": true, "value": "a"}).
Example use cases
Extract first search result
“I ran a search and got back a list of results — can you pull out just the first one from this array: ['result1', 'result2', 'result3']?”
Get first queued task
“Here's my task queue as an array — grab the first pending task from it: ['send_email', 'process_payment', 'update_record'].”
Peek at first log entry
“I have a list of log entries and I just need the very first one from this array: ['error: timeout', 'info: started', 'warn: retry'].”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v1/array/first?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a cheap, simple, pay-per-call operation to extract the first element of an array within an autonomous agent pipeline on Base using x402 micropayments. Prefer this over custom code when you want a stateless, reliable utility call billed at $0.0009 USDC per invocation.
Side effects
- Empty array returns {"found": false, "value": null}
- Missing 'values' field in request body causes validation error
- Non-array type passed as 'values' may cause unexpected behavior
- Payment failure via x402 results in 402 response before processing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| values | array |
Output
Schema · Response
{
"type": "json",
"example": {
"found": true,
"value": "a"
}
}Tags
x402
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