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ONE Engine Even Number Check
x402
ONE Engine Even Number Check 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).
Checks whether a given integer is even or odd, returning a boolean result.
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 single boolean field 'even': true if the input integer is divisible by 2, false if it is odd.
Example use cases
Parity gate in agent pipeline
“Before processing this batch, check if 256 is even so we know whether to split it into two equal halves.”
Odd/even branching logic
“I need to know if 37 is even — my workflow needs to take a different path depending on the answer.”
Input validation for a game
“The player just entered 88 as their guess — can you confirm whether that number is even before advancing the round?”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v1/number/even?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an agent needs a lightweight, deterministic, pay-per-call parity check without spinning up local compute — useful in serverless pipelines where even a simple arithmetic check benefits from an auditable, on-chain micropayment trail via x402 on Base.
Side effects
- Missing or non-integer 'value' field returns a validation error
- Non-numeric input (e.g. string or float) may be rejected or produce unexpected results
- Payment failure via x402 results in a 402 response before computation occurs
- Network timeout on Cloudflare Workers edge in rare cases
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| value | integer |
Output
Schema · Response
{
"type": "json",
"example": {
"even": true
}
}Tags
x402
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