New: Stream Prices over Server-Sent Events

Crypto Futures API

Open interest, funding rates, mark and index prices, volume and OHLCV for perpetual futures, by coin, market and exchange. Same UUIDs as spot. Growth plan, 30-day free trial.

10,000 credits a month, no credit card. WebSocket and SSE streaming are available on all plans.

$99/month · 30-day free trial · https://api.coinranking.com/v2/futures/coins

curl
# Coins with futures markets, ranked by open interest
curl 'https://api.coinranking.com/v2/futures/coins?limit=20' \
  -H 'x-access-token: YOUR_KEY'

# Every futures market, with mark price, index price and funding rate
curl 'https://api.coinranking.com/v2/futures/markets?orderBy=openInterest&limit=50' \
  -H 'x-access-token: YOUR_KEY'

# Bitcoin futures: hourly candles
curl 'https://api.coinranking.com/v2/futures/coin/Qwsogvtv82FCd/ohlcv?interval=hour&limit=168' \
  -H 'x-access-token: YOUR_KEY'

Coins, Markets and Exchanges, Each with Open Interest

The same coin → market → exchange shape as the spot API.

Endpoints marked Growth have production access on Growth and higher. Free, Basic and Startup can make five successful preview requests per eligible endpoint, per account, each UTC day. Normal usage and plan limits apply. How previews work.

The Fields a Derivatives Desk Asks For

Named plainly, converted to your reference currency.

Fields on a Coinranking futures market
MeaningAlso on
openInterestValue of open contracts, in the reference currency, with openInterestChange as a percentageCoin, exchange, market-wide stats
fundingRateThe periodic payment between longs and shorts, with fundingIntervalHours (typically 8)Coin, market-wide average
markPrice · indexPriceMark price and index price per market, alongside the last traded priceMarket
price · 24hVolume · minuteVolumeLast traded price and traded volume over 24 hours and the last minuteCoin (24h), exchange
marketShare · rankMarket share and rank within futures; lists are ordered by open interest by defaultCoin, exchange

What Developers Build on the Futures API

Open interest and funding are the two figures spot data cannot give you.

Funding Screeners

Order coins by funding rate in either direction. Extreme funding, one request.

Open Interest Dashboards

Market-wide totals plus per-coin change, next to spot price and volume from the same key.

Basis Alerts

Mark minus index per market, polled once a minute, alert on a threshold.

Exchange Comparison

Which venue holds the open interest for a coin, and at what funding.

Futures Data by Plan

All ten futures endpoints need the Growth plan.

Coinranking API plans and limits
FreeBasicStartupGrowthProfessional
Monthly price$0$24$49$99$199
Monthly credits10,000500,0001,000,0002,000,0005,000,000
REST rate limit5 / second1,000 / minute2,000 / minute4,000 / minute6,000 / minute
API keys1125Unlimited
Historical window, where supported1 year5 yearsAll time (from 2010)All time (from 2010)All time (from 2010)
Maximum results per response1005,0005,0005,0005,000
Standard endpoints on this page5 successful previews / endpoint / UTC day5 successful previews / endpoint / UTC day5 successful previews / endpoint / UTC dayProduction accessProduction access

Endpoint-specific limits may be lower. Preview allowances are shared across every API key on your account. Every paid plan offers a 30-day free trial. Compare all features.

Futures Questions

Get the Futures Data

Funding rates, open interest and futures candles on a 30-day Growth trial.

10,000 credits a month, no credit card. WebSocket and SSE streaming are available on all plans.

    Crypto Futures API: Open Interest and Funding | Coinranking