Which plan includes Coinranking WebSocket API?

Coinranking WebSocket API is included in the Professional plan at $199 a month, with 5,000,000 REST calls, unlimited API keys and a 30-day free trial. The Free and Startup plans do not include WebSockets. DEX markets on the exchange-rates and tickers feeds need the Real-Time DEX Data add-on at $119 a month. See plans.

How many coins can one WebSocket connection carry?

One Coinranking WebSocket connection carries up to 100 coin UUIDs, passed as currency-uuids[] in the URL or in a subscription message. A top-100 market table is exactly one connection. For more coins, open a second socket; each connection costs one API call. See the rates documentation.

Does a WebSocket stream use up API calls?

A Coinranking WebSocket connection consumes one API call when it opens. The stream itself consumes nothing after that, however many price messages arrive. The one exception is a subscription message: changing the coin list mid-stream costs one additional call. Reconnecting after a drop costs one call, the same as the first connection.

How do I authenticate a WebSocket connection?

Authenticate Coinranking WebSocket with the x-access-token query parameter: wss://api.coinranking.com/v2/real-time/rates?x-access-token=YOUR_KEY. The WebSocket protocol does not carry custom HTTP headers, so the header used for REST calls cannot be used here. Keep the key server-side and proxy to browsers.

How fast do WebSocket prices update?

Coinranking pushes a rate the moment it recalculates one, throttled to at most one message per coin per second by default (throttle=1s) or per ten seconds (throttle=10s). The same rates over the REST /coins endpoint refresh once a minute, which is why the socket exists.

Are WebSocket prices available in currencies other than US dollars?

No. Every Coinranking WebSocket message carries price and 24-hour volume in US dollars only. To show another currency, convert client-side with a REST price in that currency: any coin endpoint with referenceCurrencyUuid, or the coin fiat prices endpoint.

New: Stream Prices over Server-Sent Events

Crypto WebSocket API

Real-time prices for up to 100 coins per connection, pushed the moment they are calculated from 120+ exchanges. One connection costs one API call. The recommended transport for back ends; front ends use SSE.

Start free for 30 Days Read the WebSocket Docs

30 days free, then $199 a month. Card required, cancel any time.

$199/month · 30-day free trial · wss://api.coinranking.com/v2/real-time

Live marketConnecting…

Cryptocurrency prices from polling the coins endpoint once a minute, compared with the Coinranking API Server-Sent Events stream
Coin	Pollingonce a minute	Server-Sent Eventslive
BitcoinBTC
EthereumETH
BNBBNB
XRPXRP
SolanaSOL

Price updates received

API calls used: one for the list, one for the stream

Three Feeds on One Base URL

Aggregated rates per coin, rates per exchange, and full tickers per trading pair, all under wss://api.coinranking.com/v2/real-time.

WS/rates
Rates Professional
One consolidated price and 24-hour volume per coin across every exchange. Subscribe by currency-uuids[], up to 100 per connection.
WS/exchange-rates
Exchange Rates Professional
A coin’s price and volume on one exchange, tagged cex or dex. Subscribe by exchange, by coin, or by exact pair.
WS/tickers
Tickers Professional
Trading-pair level: close price, base and quote volume, and the filters applied to the market. Subscribe by market, exchange or coin.

DEX markets on the exchange-rates and tickers feeds need the Real-Time DEX Data add-on.

Prices Arrive as JSON, in a Few Lines of Code

One URL with your key and the coin UUIDs. Every message is a coin UUID, a price and a 24-hour volume in US dollars.

Connect

// Subscriptions in the connection URL
const socket = new WebSocket(
  'wss://api.coinranking.com/v2/real-time/rates' +
  '?x-access-token=YOUR_KEY' +
  '&currency-uuids[]=Qwsogvtv82FCd' +   // Bitcoin
  '&currency-uuids[]=razxDUgYGNAdQ' +   // Ethereum
  '&throttle=1s'
);

socket.onmessage = (event) => {
  const rate = JSON.parse(event.data);
  console.log(rate.currencyUuid, rate.price);
};

Subscription messages, throttling and the full message reference are in the rates docs.

One Connection Costs One API Call

Keeping 100 coins fresh for a day costs 1 API call over the socket, against 1,440 polling once a minute, and the polled price is still up to a minute old.

Cost and freshness of keeping 100 coin prices current for 24 hours, polling compared with Coinranking WebSocket
	Poll /coins every minute	Poll /coins every second	Coinranking WebSocket
API calls per day	1,440	86,400	1
Price age	Up to 60 seconds	Up to 60 seconds	Pushed on calculation
Messages per day	1,440 responses	86,400 responses	Every rate change, throttled to 1s or 10s per coin
Share of a 5M-call month, per day	0.03%	1.7%	0.00002%

Compared with CoinGecko and CoinMarketCap WebSockets

Coinranking is the only one of the three that bills per connection and runs its WebSocket as a production feature rather than a beta.

WebSocket billing and status compared across Coinranking, CoinGecko and CoinMarketCap
	Coinranking	CoinGecko	CoinMarketCap
Billing unit	Per connection	Per message	Per message
Cost of one stream	1 API call	0.1 credit per message	0.025 credits per message
Status	Live	Beta	Beta
Covered by SLA	Available as an add-on	No	No

Competitor figures from CoinGecko (docs.coingecko.com/websocket) and CoinMarketCap (coinmarketcap.com/api/documentation/pro-api-websocket/overview) documentation, verified September 2026. Both vendors negotiate separately at Enterprise.

Built for a Production Socket

What the server handles for you, and the one thing you keep server-side.

Confirmed Subscriptions

Every subscription message is answered with the accepted topics and throttle.

Simple Reconnect

Reopen the same URL and the subscriptions in it apply again. One API call, same as the first.

Throttle per Coin

10s for a browser that paints every tick, 1s for a server that stores them. Applied per coin, not per connection.

99.9% Uptime

Historical uptime above 99.9%, published on the status page. A contracted SLA is available as a paid add-on.

Keep the key server-side: open the socket from a server and relay to browsers, or use Server-Sent Events behind your own endpoint.

What Developers Build on Coinranking WebSocket API

Four things a minute-old REST price cannot do.

Live Market Tables

The ranking your users keep open. One socket for a top-100, prices that move instead of jump.

Portfolio Trackers

Every holding revalued on every tick, with the 24-hour volume in the same message.

Alert Bots

Fire when the price crosses, not up to a minute later. Change the watchlist mid-stream.

Trading Dashboards

Tickers per pair with base and quote volume, on centralized exchanges and, with the add-on, DEXs.

Other Ways to Stream the Same Data

One data set, two transports, one add-on.

Server-Sent Events

The same feeds as one HTTP response that never ends. Recommended for front ends: EventSource is built in and reconnects by itself.

Real-Time DEX Data

Every DEX Coinranking tracks, on the exchange-rates and tickers feeds. An add-on to Professional.

WebSocket Access by Plan

The WebSocket feeds are included in the Professional plan and not available on Free or Startup.

Coinranking API plans and what each includes for this feature
	Free · $0	Startup · $49/mo	Professional · $199/mo
Price	$0	$49	$199
WebSocket feeds	Not included	Not included	Rates, exchange rates, tickers
Subscriptions per connection	—	—	Up to 100
DEX markets on the feeds	—	—	With the Real-Time DEX Data add-on, $119/month
REST calls per month	5,000	1,000,000	5,000,000
Free trial	—	30 days	30 days