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ONE Engine Number Between Check
x402
ONE Engine Number Between 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 numeric value falls within a specified min/max range, 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 'between' indicating whether the provided value falls within the inclusive min/max range (e.g. {"between": true}).
Example use cases
Validating user input within acceptable range
“Is the user's entered age of 17 between 18 and 65? I need to know if it's within our allowed range.”
Checking sensor reading within safe limits
“A temperature sensor just reported 98.6 — is that between the safe range of 90 and 105?”
Verifying bid price within auction bounds
“The bidder submitted 250 — does that fall between the minimum bid of 100 and the maximum allowed of 500?”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v1/number/between?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, cheap, pay-per-call range validation without standing up your own logic — ideal for autonomous agents that need to make quick numerical boundary checks inline with other workflows at minimal cost ($0.0009 USDC per call). Prefer it when you want stateless, serverless range checks without API key management.
Side effects
- Missing required fields (value, min, or max) may result in an error or unexpected behavior
- Non-numeric inputs could cause validation failures
- Payment failure via x402 protocol would prevent the call from completing
- If min is greater than max, the result may be undefined or incorrect
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| max | number | |
| min | number | |
| value | number |
Output
Schema · Response
{
"type": "json",
"example": {
"between": true
}
}Tags
x402
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