Gold Price API - Live AU Spot Quotes & Historical Data | Metal Sentinel

REST · JSON · RapidAPI

Gold Price API

Live AU spot quotes, historical OHLC and conversions into 180+ currencies from one REST endpoint, with sub-second responses and a free tier on RapidAPI.

Gold price today: 3,875.40 USD per troy ounce (-146.10, -3.63%)

Day high
4,027.30
Day low
3,869.30
Bid / ask
3,874.40 / 3,876.40
Updated

Live Response · try any currency

GET /api/metal-quote?symbol=AU&currency=USD
$ curl "https://metal-sentinel.p.rapidapi.com/api/metal-quote?symbol=AU&currency=USD" \
-H "x-rapidapi-host: metal-sentinel.p.rapidapi.com" \
-H "x-rapidapi-key: your_key"
currency
200 OK · application/json
{
"ID": 1793570055,
"results": [
{
}
]
}

Gold price by karat

Karat prices from the live quote

Karat Purity Per troy ounce Per gram
24k 100.0% gold 3,875.40 124.60
18k 75.0% gold 2,906.55 93.45
14k 58.3% gold 2,260.65 72.68
9k 37.5% gold 1,453.28 46.72

Calculated from the live mid price of 3,875.40 USD per ounce. Pure metal value only; refining, fabrication and dealer margins are not included.

Today's session

USD per ounce, from the same quote as the table above.

3,869.30 3,875.40 4,027.30
Day low Mid now Day high
Day high
4,027.30
Day low
3,869.30
Bid
3,874.40
Ask
3,876.40
Change
-146.10
Change %
-3.63%

Sample response

What the endpoint returns

GET /api/gold-price?currency=USD
{
    "ID": 1793570055,
    "results": [
        {
            "symbol": "AU",
            "currency": "USD",
            "ask": 3876.4,
            "mid": 3875.4,
            "bid": 3874.4,
            "high": 4027.3,
            "low": 3869.3,
            "open": 0,
            "close": 0,
            "timestamp": 1793569980,
            "change": -146.1,
            "changePercentage": -3.63,
            "unit": "OUNCE",
            "originalTime": "2026-10-30T17:00:00Z",
            "karat_prices": {
                "24k": 3875.4,
                "18k": 2906.55,
                "14k": 2260.65,
                "9k": 1453.28
            }
        }
    ]
}

Prices are per ounce in the requested currency. timestamp is Unix seconds. See the OpenAPI spec for every field.

What moves the gold price

The gold price is the US dollar value of one troy ounce of investment-grade bullion for immediate delivery. Metal Sentinel returns the live spot bid, ask and mid, the day range, and the same price broken down by karat, so a jewellery store, a fintech app and a trading desk can all read the number they need from one call.

  1. Real interest rates

    Gold pays no yield, so when inflation-adjusted bond yields rise, holding gold costs more and the price tends to fall. Federal Reserve decisions and US inflation prints are the most watched scheduled events.

    Real yields rise gold falls
  2. The US dollar

    Gold is priced in dollars. A weaker dollar makes an ounce cheaper for buyers in euros, rupees or yuan, which usually lifts demand and the dollar price.

    The dollar weakens gold rises
  3. Central bank buying

    Official reserves have been a major source of demand since 2022, with central banks adding roughly a thousand tonnes a year. Purchases by China, Poland, India and Turkey are reported monthly and move sentiment.

    Central banks keep buying gold rises
  4. Investment and jewellery flows

    Exchange-traded fund holdings track Western investor appetite, while India and China account for about half of physical jewellery demand. Wedding and festival seasons show up in the price.

    ETF inflows return gold rises

About Gold

What is Au?

Gold is a precious metal valued for its scarcity, malleability, and resistance to corrosion. It does not tarnish, conducts electricity well, and can be drawn into wire one micron thick. The spot price is quoted on the London Bullion Market and the COMEX futures exchange. It is the price for immediate physical delivery of investment-grade bullion, typically 99.5% pure or higher.

Where Gold is used

Real-world demand

Central bank reserves
Bars, coins & ETFs
Jewellery & watchmaking
Semiconductor bonding wire
Dental & medical alloys

Why Metal Sentinel

Built for teams shipping Gold pricing.

One API for live spot quotes, history and conversions, built for production apps.

< 1s

avg response

Trading-grade latency

Live gold spot quotes from primary market data feeds, delivered in under a second on average. Fast enough for dashboards, OMS hooks, and other price-sensitive workflows.

180+

fiat & crypto

Quote in any currency

Pass a currency code to get gold priced in any of 180+ fiat currencies or 90+ crypto tokens, without wiring up a separate FX feed.

USD EUR GBP JPY BTC ETH +174
10+

metals

One API, every metal

Gold, silver, platinum, palladium, rhodium, copper, nickel, aluminum, lead, and zinc, all with the same authentication and response shape.

Au Ag Pt Pd Rh Cu Ni Al Pb Zn
OHLC

historical

History + conversions

The same API also returns historical OHLC candles, FX conversions, and market status.

$0

to start

Free tier, no card

Start on the free tier on RapidAPI and build a prototype in minutes. Paid plans have transparent, predictable pricing.

Gold price questions

Questions people ask before they wire the gold price into a product.

What is the difference between the spot price and the futures price?

Spot is the price for gold delivered now. Futures are contracts for delivery at a later date and include financing and storage costs, so they usually trade slightly above spot. The API returns spot.

Why does my jeweller quote a higher price per gram?

Retail prices add fabrication, hallmarking, dealer margin and local taxes on top of spot, and most jewellery is 18k or lower purity. The karat table on this page shows the pure metal value at each purity before those costs.

How are the karat prices calculated?

The /api/gold-price endpoint multiplies the live mid price by the gold content of each karat: 24k is 100 percent, 18k is 75 percent, 14k is 58.3 percent and 9k is 37.5 percent.