# ONE Engine Numeric Percent Change Top-10

> ONE Engine Numeric Percent Change 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).

Computes percent-change metrics for an array of numeric values and returns the top 10 results, with optional scaling, filtering, and rounding controls.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/numeric/percent-change/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-percent-change-top-10-9288155a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HFbpslB0vEPJ4IOpIuGQ-

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-percent-change-top-10-9288155a -d '<json body>'
```

Example prompt: Calculate the percent change for these values — [120, 95, 150, 80, 200, 135, 110, 175, 60, 90, 145, 130] — and give me the top 10 results rounded to 2 decimal places.

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call computation of percent changes ranked by magnitude from a numeric array of up to 1000 values, especially in autonomous agent workflows on Base/x402 where low cost per call ($0.03 USDC) matters. It is preferable over building custom logic when you need server-side ranking, filtering, scaling, and rounding in a single call without managing your own compute infrastructure.

## Known failure modes

- Array exceeds 1000 values — request rejected
- Non-finite numbers (NaN, Infinity) in values array — validation error
- Missing required 'values' field — 400 bad request
- Payment failure via x402/Base — 402 Payment Required
- Empty array provided — may return empty or error response
- Invalid parameter types (e.g. string instead of number) — schema validation error

## 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 top 10 numeric percent-change results computed from the input array, potentially filtered by min/max bounds, limited to the specified size, scaled by a factor, offset by a constant, and rounded to the specified number of decimal digits.

## 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-percent-change-top-10-9288155a/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)