Copper

Copper in US dollars per pound. The ounce here is a sixteenth of a pound, not the gold ounce. /usd is the same quote.

unit string

lb, oz, kg, or t. Defaults to lb.

Example: kg

amount number

How many of that unit to price. Defaults to 1.

Example: 1

200 OK Success

{
  "ok": true,
  "metal": "copper",
  "symbol": "HG",
  "currency": "USD",
  "price": 6.7,
  "unit": "lb",
  "amount": 1,
  "totalUsd": 6.7
}

400 BAD_REQUEST unknown unit

502 BAD_GATEWAY could not load the copper price