# ONE Engine Numeric Normalize Range (Top-10)

> ONE Engine Numeric Normalize Range (Top-10) is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-02).

Normalizes an array of numbers into a specified range with optional scaling, offsetting, rounding, and top-10 filtering.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/numeric/normalize-range/t10?utm_source=zero.xyz
- Price: $0.03/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-top-10-b724bfa7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6aYhHnoXCd9KbZwHn4JFu

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-top-10-b724bfa7 -d '<json body>'
```

Example prompt: Normalize these scores [42, 7, 99, 15, 63, 88, 3, 51] to a range of 0 to 100, round to 2 decimal places, and give me just the top 10 results.

## When to prefer this

Use this endpoint when you need a pay-per-call, no-setup numeric normalization with optional top-N filtering in a single API call. It is ideal for agents that only occasionally need to rescale data and want to avoid provisioning a full math/statistics service. Choose it over generic computation endpoints when you specifically need range normalization with ranking built in.

## Known failure modes

- Missing required 'values' array returns a validation error
- Array exceeding 1000 elements may be rejected or truncated
- Non-finite numbers (NaN, Infinity) in the values array likely cause errors
- Payment failure via x402 results in a 402 Payment Required response
- Invalid min/max combinations (e.g. min > max) may produce unexpected results

## 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 (and optionally scaled, offset, rounded, and top-N filtered) numeric values derived from the input array. The exact shape is flexible (additionalProperties: true), but will include the transformed numeric results.

## 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-top-10-b724bfa7/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)