Rhodium Price API - Live RH Spot Quotes & Historical Data | Metal Sentinel

REST · JSON · RapidAPI

Rhodium Price API

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

Rhodium price today: 9,050.00 USD per troy ounce (+0.00, +0.00%)

Day high
10,600.00
Day low
7,200.00
Bid / ask
8,550.00 / 9,550.00
Updated

Live Response · try any currency

GET /api/metal-quote?symbol=RH&currency=USD
$ curl "https://metal-sentinel.p.rapidapi.com/api/metal-quote?symbol=RH&currency=USD" \
-H "x-rapidapi-host: metal-sentinel.p.rapidapi.com" \
-H "x-rapidapi-key: your_key"
currency
200 OK · application/json
{
"ID": 1793625479,
"results": [
{
}
]
}

Rhodium price by unit

Rhodium price per unit

Unit Equivalent Price (USD)
Per troy ounce 31.1 g 9,050.00
Per gram 1 g 290.96
Per kilogram 1,000 g 290,964.26

Calculated from the live mid price of 9,050.00 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.

7,200.00 9,050.00 10,600.00
Day low Mid now Day high
Day high
10,600.00
Day low
7,200.00
Bid
8,550.00
Ask
9,550.00
Change
+0.00
Change %
+0.00%

Sample response

What the endpoint returns

GET /api/metal-quote?symbol=RH&currency=USD
{
    "ID": 1793625479,
    "results": [
        {
            "symbol": "RH",
            "currency": "USD",
            "ask": 9550,
            "mid": 9050,
            "bid": 8550,
            "high": 10600,
            "low": 7200,
            "open": 0,
            "close": 0,
            "timestamp": 1793625420,
            "change": 0,
            "changePercentage": 0,
            "unit": "OUNCE",
            "originalTime": "2026-11-01T18:00:00Z"
        }
    ]
}

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

What moves the rhodium price

The rhodium price is the US dollar value of one troy ounce of rhodium, the rarest and usually the most expensive metal the API tracks. There is no futures exchange for rhodium, so the price is set by dealers and refiners. Metal Sentinel quotes it in the same format as every other metal, refreshed every 15 seconds.

  1. Emissions rules

    Rhodium is the most effective catalyst for removing nitrogen oxides from petrol exhaust and has no cheap substitute. Tighter emissions standards in China and Europe have been the main source of demand growth.

    Emissions rules tighten rhodium rises
  2. A very small market

    Annual supply is only about one million ounces, a fraction of platinum. With few participants and no exchange, modest changes in buying or selling produce large price moves.

    A few buyers move the market rhodium swings
  3. By-product of platinum mining

    Rhodium is recovered alongside platinum and palladium, mostly in South Africa. Miners cannot increase rhodium output on its own, so supply does not respond to price.

    Platinum output is fixed rhodium rises
  4. Recycling

    Recovered catalytic converters supply a growing share of rhodium. The pace of vehicle scrappage and the price itself decide how much comes back to market.

    Recycling increases rhodium falls

About Rhodium

What is Rh?

Rhodium is a very rare, highly reflective member of the platinum group, mined almost exclusively as a by-product of platinum and nickel extraction in South Africa. With annual supply under 30 tonnes, the market is small and illiquid, and the price can spike sharply. Demand is dominated by autocatalysts that scrub nitrogen oxides from gasoline engine exhaust.

Where Rhodium is used

Real-world demand

Gasoline catalytic converters
Glassmaking equipment
Reflective coatings
White-gold plating
Chemical & pharma catalysis

Why Metal Sentinel

Built for teams shipping Rhodium pricing.

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

< 1s

avg response

Trading-grade latency

Live rhodium 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 rhodium 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.

Rhodium price questions

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

Why is rhodium so expensive?

Supply is tiny and fixed by platinum mining, while catalyst demand is inelastic. When emissions rules tightened around 2020, the price rose roughly tenfold and briefly approached thirty thousand dollars an ounce in 2021.

Why is there no rhodium futures market?

The market is too small and too concentrated for an exchange contract to attract liquidity. Prices come from bilateral trades between miners, refiners, car makers and dealers, which is why quotes can gap between updates.

Which endpoint returns the rhodium price?

Call /api/metal-quote with symbol=RH and your currency. Historical daily values are available from /api/metal-history.