# SiteCheck Trade & Energy — Ammonia & Nitrogen Fertilizer PPI

> SiteCheck Trade & Energy — Ammonia & Nitrogen Fertilizer PPI 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 monthly US Bureau of Labor Statistics producer price indexes for ammonia/ammonium compounds (commodity series) and nitrogenous fertilizer manufacturing (industry series), sourced via FRED, for up to 60 months of history.

## Facts

- Endpoint: GET https://api.tradeenergy-api.workers.dev/api/energy/ammonia-fertilizer-spot?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-ammonia-nitrogen-fertilizer-ppi-cf59a84a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wkL7_TYUq3kMqxdSE88Td

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-ammonia-nitrogen-fertilizer-ppi-cf59a84a
```

Example prompt: Can you pull the BLS producer price indexes for ammonia and nitrogenous fertilizer manufacturing for the last 24 months — I want to see both the commodity series and the industry series with their monthly history.

## When to prefer this

Choose this endpoint when you need official US government BLS producer price index data for ammonia or nitrogenous fertilizer manufacturing, sourced through FRED, as monthly index values (base Dec 2014 = 100). Prefer this over commodity spot price services when you need a standardized, government-published series for economic analysis, inflation tracking, or input cost modeling. Do not use this if you need real-time USD spot prices (e.g., US Gulf or Tampa ammonia spot quotes) — this endpoint provides index values only.

## Known failure modes

- FRED/BLS data unavailable or rate-limited — may return error or stale data
- months parameter out of range (must be 1–60) may cause validation error
- Data lags: BLS PPI series are released monthly with a delay, so the latest observation may be 1–2 months behind the current date
- Workers.dev infrastructure downtime causing 5xx responses
- No USD spot prices returned — users expecting Gulf/Tampa spot quotes will not find them here

## How this service works

Monthly US producer price indexes for ammonia and nitrogen fertilizer from the Bureau of Labor Statistics (via FRED): the commodity index for ammonia, nitric acid, ammonium compounds and urea, and the nitrogenous fertilizer manufacturing industry index. Index values, not USD spot prices; US Gulf/Tampa spot quotes are not included.

## Output

Returns a JSON object with two PPI series: (1) 'ammonia' — BLS commodity index for synthetic ammonia, nitric acid, ammonium compounds and urea (WPU0652013A), and (2) 'nitrogenFertilizerIndustry' — BLS industry index for nitrogenous fertilizer manufacturing (PCU325311325311A). Each series includes a label, the latest observation (date + value), the FRED series ID, and a historical array of date/value pairs for up to 60 months. Index base is December 2014 = 100. Also includes the FRED source URL and a checkedAt timestamp.

## 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 60 (default 12)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "unit": "index, Dec 2014 = 100 (BLS producer price index)",
  "source": "https://fred.stlouisfed.org/graph/fredgraph.csv",
  "ammonia": {
   "label": "PPI by commodity: synthetic ammonia, nitric acid, ammonium compounds and urea (BLS)",
   "latest": {
    "date": "2026-09-01",
    "value": 145.707
   },
   "series": "WPU0652013A",
   "history": [
    {
     "date": "2026-09-01",
     "value": 145.707
    },
    {
     "date": "2026-08-01",
     "value": 146.427
    }
   ]
  },
  "checkedAt": "2026-10-23T09:38:23.571Z",
  "nitrogenFertilizerIndustry": {
   "label": "PPI by industry: nitrogenous fertilizer manufacturing — synthetic ammonia, nitric acid, ammonium compounds and urea (BLS)",
   "latest": {
    "date": "2026-09-01",
    "value": 143.552
   },
   "series": "PCU325311325311A",
   "history": [
    {
     "date": "2026-09-01",
     "value": 143.552
    },
    {
     "date": "2026-08-01",
     "value": 144.237
    }
   ]
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitecheck-trade-energy-ammonia-nitrogen-fertilizer-ppi-cf59a84a/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)