# ADH Gold & Silver Momentum Signals

> ADH Gold & Silver Momentum Signals is a paid API for AI agents from agentdatum.com, paid per call via x402, $0.05/call, status down (last checked 2026-10-21).

Returns quantitative momentum and volatility signals (log-return, z-score, percentile rank) for gold and silver commodity series

## Facts

- Endpoint: GET https://agentdatum.com/api/v1/d/sig-gold?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: down
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/adh-gold-silver-momentum-signals-4bf0f6c4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HC3aFFGlyJWx3Bj4Dm0kN

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 adh-gold-silver-momentum-signals-4bf0f6c4
```

Example prompt: Pull the latest gold and silver momentum signals — I want to see the z-scores, percentile ranks, and log-return momentum so I can tell if gold is statistically stretched right now.

## When to prefer this

Choose this endpoint when you need pre-computed quantitative signals (z-scores, momentum, volatility, percentile rank) for gold and silver rather than raw price feeds. It is ideal for AI agents doing macro regime detection, overbought/oversold analysis, or precious metals monitoring without having to run the statistical calculations themselves. Prefer it over raw tick data endpoints when you want normalized, context-ready intelligence that can be directly injected into an LLM prompt.

## Known failure modes

- Upstream commodity data feed unavailable — partial or stale signals returned
- Series status field shows error instead of 'ok' if the data source is missing
- Empty history array if time-series library has insufficient data points
- 402 Payment Required if x402 payment header is missing or insufficient
- Rate limiting if repeated calls exceed quota without valid payment

## How this service works

ADH 金融情报层：把 239 个原始数据源洗成带实体解析、时间同步、溯源与派生结论的情报（宏观regime / 加密尽调 / 事件窗口），免费注入你的 AI 上下文。Agent 走 x402 结算，人类订阅（PayPal）即将上线。

## Output

A JSON object containing per-series signals for gold and silver futures (e.g. GC=F), each including: last price value, 1-period log return, 4-period momentum, 20-day realized volatility, 10- and 30-day z-scores, 10- and 30-day percentile ranks, historical price timestamps, number of data points, status flag, and a UTC generation timestamp.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "raw": {
   "method": "x402 signals: log-return momentum / volatility / z-score / percentile rank over time-series library",
   "product": "黄金白银信号",
   "signals": [
    {
     "mom_4": 0.073352,
     "ret_1": 0.023001,
     "points": 258,
     "series": "commodities__GC_F",
     "status": "ok",
     "vol_20": 0.015574,
     "history": [
      {
       "ts": 1782705600,
       "value": 4022.300049
      },
      {
       "ts": 1782705600,
       "value": 4022.300049
      }
     ],
     "zscore_10": 3.1129,
     "zscore_30": 4.1761,
     "last_value": 4340.7002,
     "pctrank_10": 100,
     "pctrank_30": 100
    },
    {
     "mom_4": 0.073352,
     "ret_1": 0.023001,
     "points": 258,
     "series": "commodities__GC_F",
     "status": "ok",
     "vol_20": 0.015574,
     "history": [
      {
       "ts": 1782705600,
       "value": 4022.300049
      },
      {
       "ts": 1782705600,
       "value": 4022.300049
      }
     ],
     "zscore_10": 3.1129,
     "zscore_30": 4.1761,
     "last_value": 4340.7002,
     "pctrank_10": 100,
     "pctrank_30": 100
    }
   ],
   "generated_at": "2026-08-14T00:22:02Z"
  },
  "source": "datum-signals",
  "data_type": "信号指标",
  "collected_at": "2026-08-14T00:22:02Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/adh-gold-silver-momentum-signals-4bf0f6c4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentdatum.com](https://www.zero.xyz/host/agentdatum.com/llms.txt)