# ONE Engine Numeric Normalize Range

> ONE Engine Numeric Normalize Range is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).

Normalizes an array of numbers to a specified range, applying optional scaling, rounding, and offset transformations.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/numeric/normalize-range/t8?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/one-engine-numeric-normalize-range-a50679f0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jh_XCg3rpkwhep3OuSPkm

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability one-engine-numeric-normalize-range-a50679f0 -d '<json body>'
```

Example prompt: Normalize these values [0, 25, 50, 75, 100, 200] to a 0-to-1 range, rounding to 3 decimal places.

## When to prefer this

Choose this endpoint when you need a fast, pay-per-call numeric range normalization without managing your own compute infrastructure. Ideal for agents that occasionally need to normalize small batches (up to 1000 values) on demand without setting up a data pipeline. At $0.01 USDC per call on Base via x402, it is cost-effective for sporadic normalization tasks in autonomous workflows.

## Known failure modes

- Array contains non-finite values (Infinity, NaN) — likely validation error
- Array exceeds 1000 elements — rejected
- Missing required 'values' field — 400 error
- Min equals max causing division by zero in normalization
- Payment not provided or insufficient — 402 Payment Required

## How this service works

Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.

## Output

Returns a JSON object containing the normalized array of numbers, rescaled according to the specified min/max bounds and optionally rounded to the given number of decimal digits, with any factor or offset applied.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "values"
 ],
 "properties": {
  "max": {
   "type": "number"
  },
  "min": {
   "type": "number"
  },
  "size": {
   "type": "integer"
  },
  "digits": {
   "type": "integer"
  },
  "factor": {
   "type": "number"
  },
  "offset": {
   "type": "number"
  },
  "values": {
   "type": "array",
   "description": "Finite numbers, maximum 1000"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "additionalProperties": true
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/one-engine-numeric-normalize-range-a50679f0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from one-search.one-engine.workers.dev](https://www.zero.xyz/host/one-search.one-engine.workers.dev/llms.txt)