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ONE Engine Linear Scale (Numeric)
x402
ONE Engine Linear Scale (Numeric) 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).
Applies a linear scale transformation to an array of numeric values, mapping them to a new range with optional rounding and offset.
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 an object containing the linearly scaled version of the input numeric array, transformed according to the specified min, max, factor, offset, and rounding parameters.
Example use cases
Normalize sensor readings to 0-1
“I have a list of temperature sensor readings [18.3, 22.1, 30.5, 15.0, 27.8] — can you normalize them all to a 0-to-1 scale, rounded to 3 decimal places?”
Rescale ML feature values
“Rescale these raw model confidence scores [0.1, 0.45, 0.88, 0.23, 0.67] to a range of -1 to 1 with 4 digits of precision, applying a linear scale.”
Map survey scores to 100-point scale
“I have survey responses on a 1-5 scale: [1, 2, 3, 4, 5, 3, 2] — can you linearly map them to a 0-to-100 range with no decimal places?”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/numeric/linear-scale/t4?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call linear normalization or rescaling of a numeric array without standing up your own compute. Ideal for agents performing preprocessing steps on small-to-medium datasets (up to 1000 values) where cost-efficiency matters and a simple min-max or factor-offset linear transform suffices.
Side effects
- Array exceeds 1000 element limit — request rejected
- Non-finite values (NaN, Infinity) in input array cause errors
- Missing required 'values' field returns validation error
- Conflicting min/max range (min > max) may produce unexpected output
- Payment failure via x402 prevents execution
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| max | number | |
| min | number | |
| size | integer | |
| digits | integer | |
| factor | number | |
| offset | number | |
| valuesrequired | array | Finite numbers, maximum 1000 |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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