# SiteCheck Trade & Energy — Nickel Monthly Reference Price

> SiteCheck Trade & Energy — Nickel Monthly Reference Price is a paid API for AI agents from api.tradeenergy-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).

Returns the World Bank monthly nickel reference price (PNICKUSDM via FRED) in USD per metric ton, with latest value and up to 24 months of history.

## Facts

- Endpoint: GET https://api.tradeenergy-api.workers.dev/api/energy/nickel-class1-cash-settle?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitecheck-trade-energy-nickel-monthly-reference-price-228d6451
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vcDLfsGS_PkgvWyW-ug9H

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 sitecheck-trade-energy-nickel-monthly-reference-price-228d6451
```

Example prompt: What's the current World Bank monthly nickel reference price in USD per metric ton, and can you show me the last 6 months of history?

## When to prefer this

Choose this endpoint when you need the World Bank's official monthly nickel benchmark price (PNICKUSDM via FRED) rather than real-time LME cash settlement or spot trading data. It is ideal for procurement benchmarking, contract indexing, economic research, or financial modeling where the authoritative World Bank series is the reference standard. Not suitable for live intraday or LME settlement pricing.

## Known failure modes

- FRED or World Bank data temporarily unavailable — may return stale or empty history
- Invalid 'months' parameter (outside 1–24 range) may return default or error
- Network timeout on the Cloudflare Workers endpoint
- Payment failure via x402 protocol results in 402 response with no data

## How this service works

Monthly nickel reference price in USD per metric ton (World Bank series PNICKUSDM, via FRED). Not the LME Class 1 cash settlement or LME warehouse stocks; the route name is kept for the owner. Latest value plus up to 24 months of history.

## Output

A JSON object containing the latest monthly nickel price (date + USD per metric ton value), an array of up to 24 monthly historical data points, the FRED source URL, and a checkedAt timestamp indicating when the data was last fetched.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "months": {
       "type": "string",
       "description": "Months of history, 1 to 24 (default 3)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "unit": "USD per metric ton",
  "latest": {
   "date": "2026-09-01",
   "value": 16323.8219047619
  },
  "source": "https://fred.stlouisfed.org/graph/fredgraph.csv?id=PNICKUSDM",
  "history": [
   {
    "date": "2026-09-01",
    "value": 16323.8219047619
   },
   {
    "date": "2026-08-01",
    "value": 16748.1819047619
   }
  ],
  "checkedAt": "2026-10-23T09:38:22.276Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitecheck-trade-energy-nickel-monthly-reference-price-228d6451/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.tradeenergy-api.workers.dev](https://www.zero.xyz/host/api.tradeenergy-api.workers.dev/llms.txt)