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ONE Engine Numeric Linear Scale
x402
ONE Engine Numeric Linear Scale is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0065/call, status unknown (last checked 2026-10-02).
Linearly scales an array of numbers to a specified range with optional rounding, factor, and offset controls.
Price / call$0.0065
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 transformed numeric array, where each input value has been linearly scaled to the specified [min, max] range, optionally rounded to a given number of decimal digits, and optionally shifted or multiplied by offset/factor parameters.
Example use cases
Normalize ML features before training
“I have these raw feature values [0.5, 3.2, 1.8, 7.4, 2.1] that I need normalized between 0 and 1 with 4 decimal digits before feeding them into my model — can you rescale them?”
Rescale survey scores for display
“Scale these survey response scores [1, 3, 5, 2, 4, 3, 5] to a 0–10 range rounded to 1 decimal place so I can display them on a consistent chart.”
Map sensor readings to control range
“I have sensor readings [120, 340, 560, 210, 480] that need to be mapped to a 0–255 range with no decimal places — please linearly scale them.”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/numeric/linear-scale/t7?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, cheap, pay-per-call linear normalization of a numeric array without spinning up your own compute — especially useful in agent workflows needing data preprocessing before downstream ML, visualization, or control steps. At $0.0065 USDC it is cost-effective for frequent small batch normalizations.
Side effects
- Array contains non-finite numbers (Infinity, NaN) — rejected as input
- More than 1000 values in the array — exceeds maximum limit
- Invalid min/max range (e.g. min > max) — may produce unexpected results
- Missing required 'values' field — returns validation error
- Payment failure via x402 — returns 402 Payment Required
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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