# SiteCheck Trade & Energy – Uranium U3O8 Yellowcake Price (FRED/World Bank)

> SiteCheck Trade & Energy – Uranium U3O8 Yellowcake Price (FRED/World Bank) 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 monthly uranium (U3O8 yellowcake) reference price in USD per pound, sourced from the World Bank PURANUSDM series via FRED, with up to 24 months of history.

## Facts

- Endpoint: GET https://api.tradeenergy-api.workers.dev/api/energy/uranium-u3o8-yellowcake?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-uranium-u3o8-yellowcake-price-fred-world-bank-b67e8abb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SaUMvG5vNndPKG_A_xwww

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-uranium-u3o8-yellowcake-price-fred-world-bank-b67e8abb
```

Example prompt: What's the current uranium yellowcake price per pound, and can you show me the last 12 months of monthly history from the World Bank FRED series?

## When to prefer this

Use this endpoint when you need the World Bank's official monthly uranium (U3O8) reference price series from FRED (PURANUSDM) — ideal for macroeconomic analysis, energy sector research, or government-referenced commodity tracking. Note this is NOT the UxC or TradeTech spot or long-term contract quote used by nuclear utilities for procurement; prefer this for World Bank/FRED-sourced official reference pricing with historical depth up to 24 months.

## Known failure modes

- FRED/World Bank data temporarily unavailable — upstream source outage
- months parameter out of range (must be 1–24) — may return default or error
- Stale data if FRED has not yet published the current month's value
- HTTP 402 if x402 micropayment (0.002 USDC) is not completed
- Network timeout to Cloudflare Worker

## How this service works

Monthly uranium reference price in USD per pound U3O8 (World Bank series PURANUSDM, via FRED). Not the UxC or TradeTech spot or long-term quotes; the route name is kept for the owner. Latest value plus up to 24 months of history.

## Output

Returns a JSON object containing the latest uranium U3O8 price (date + USD per lb value), an array of monthly historical price points (up to 24 months), 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 lb U3O8",
  "latest": {
   "date": "2026-09-01",
   "value": 72.47442565545455
  },
  "source": "https://fred.stlouisfed.org/graph/fredgraph.csv?id=PURANUSDM",
  "history": [
   {
    "date": "2026-09-01",
    "value": 72.47442565545455
   },
   {
    "date": "2026-08-01",
    "value": 71.09474744380952
   }
  ],
  "checkedAt": "2026-10-23T09:38:22.741Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitecheck-trade-energy-uranium-u3o8-yellowcake-price-fred-world-bank-b67e8abb/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)