A crypto ticker gets its price from a cryptocurrency exchange’s public API — either a single large market like Binance, or a blended figure from an aggregator that averages several exchanges. There is no universal “Bitcoin price” to read: every exchange runs its own order book, so the last-traded price differs slightly between them at any instant. The Binance market-data API that many tickers use is free, requires no account, and pushes updates roughly once per second.
The short version
Source: a public exchange API — single-exchange (e.g. Binance) or an aggregator average.
No universal price: each of the thousands of exchanges has its own order book; majors stay within ~0.1–0.5% of each other via arbitrage.
Binance public feed: free, no login, 6,000 request-weight/min per IP, ~1 update/second streaming.
Aggregators (CoinGecko, CoinMarketCap) smooth out any one exchange’s quirks but add a small lag.
On an API outage a good ticker holds the last price and reconnects quietly.
There is no single price to read
“The price of Bitcoin” is shorthand. Binance, Coinbase, Kraken and dozens of others each match their own buyers and sellers, and each trade sets a new last price for that venue. Those prices track closely — usually within a few tenths of a percent for a major coin — because arbitrage bots buy wherever it is cheap and sell wherever it is dear until the gap closes. But they are never identical, and on a thinly traded coin or a small exchange they can drift noticeably.
So every ticker makes a choice: show one exchange’s price, or show a blend.
Single-exchange feeds
Reading one large, liquid exchange directly is the common approach. The upside is speed and simplicity — a streaming connection delivers each trade as it happens, so the number on the screen is essentially real-time. The requirement is that the exchange is deep enough that its price is representative. A shallow market can jump on a single large order and briefly disagree with the rest of the world.
Turionics reads Coinbase (the default) or Binance, and you choose which in the control panel; coins one exchange doesn’t list come from the other automatically. Both are high-volume spot markets with public market-data endpoints that need no account. Binance’s rate limit (6,000 request-weight per minute per IP) is far more headroom than a single device needs.
Aggregator feeds
Services like CoinGecko and CoinMarketCap compute a volume-weighted average across many exchanges. That average is more robust to any one venue misbehaving, and it is what most “the price of Bitcoin” figures in the press refer to. The trade-off is a small amount of lag — the aggregator has to collect and blend before it publishes — and some aggregator tiers meter or charge for heavy use.
For a desk display, a representative single-exchange feed and an aggregator feed will look the same to the eye almost all the time. The difference shows up only in fast-moving conditions or on obscure coins.
How accurate is it?
For Bitcoin, Ethereum and other high-volume coins: very. The spread between major exchanges is typically a fraction of a percent, and a ticker on a good feed will match what you see on Coinbase or a news site to within the width of a rounding digit. Accuracy degrades for low-volume coins, where exchanges genuinely disagree, and during extreme volatility, where the feed you are on and the one someone else is on can briefly differ by more than usual.
The Turionics ticker reads Coinbase or Binance every second for Bitcoin and 1000+ coins, on an always-on single-colour LED display — no app, no account, no subscription.
Home Wi-Fi blips and exchange APIs have brief outages. A well-built ticker keeps showing the last known price and reconnects in the background, rather than blanking, freezing, or — worst — showing a stale number with no indication it is stale. The device never holds anything sensitive: it reads a public price feed and nothing else, with no path to a wallet or an account.
What if a coin isn’t listed on the exchange you picked?
Not every coin trades everywhere: Coinbase doesn’t list some coins that Binance does, and the other way round. A Turionics ticker handles that on its own. Coinbase is the default source; if a coin isn’t there, the ticker notices within a second or two and takes that one coin from Binance instead, while everything else keeps streaming from your chosen exchange. With Binance selected, coins it doesn’t list come from Coinbase. You never have to switch anything by hand.
Common questions
Where does a crypto price ticker get its data?
From a cryptocurrency exchange’s public API — usually a single large exchange like Binance read directly, or a blended average from an aggregator such as CoinGecko or CoinMarketCap.
Is there one official Bitcoin price?
No. Each exchange has its own order book and last-traded price. Arbitrage keeps the major exchanges within a fraction of a percent of each other, but there is no single canonical number.
How accurate is a crypto ticker’s price?
For high-volume coins, accurate to within a rounding digit of what you would see on a major exchange or news site. Accuracy is lower for thinly traded coins and during extreme volatility.
Does a crypto ticker need an exchange account or API key?
No. Public market-data endpoints — including Binance’s — return prices without any login or key. The ticker only reads data; it cannot place trades or touch an account.
How often does the price update?
On a streaming single-exchange feed, about once per second. Aggregator feeds refresh a little slower because they blend multiple sources first.
Where Does a Crypto Ticker Get Its Price?
A crypto ticker gets its price from a cryptocurrency exchange’s public API — either a single large market like Binance, or a blended figure from an aggregator that averages several exchanges. There is no universal “Bitcoin price” to read: every exchange runs its own order book, so the last-traded price differs slightly between them at any instant. The Binance market-data API that many tickers use is free, requires no account, and pushes updates roughly once per second.
The short version
There is no single price to read
“The price of Bitcoin” is shorthand. Binance, Coinbase, Kraken and dozens of others each match their own buyers and sellers, and each trade sets a new last price for that venue. Those prices track closely — usually within a few tenths of a percent for a major coin — because arbitrage bots buy wherever it is cheap and sell wherever it is dear until the gap closes. But they are never identical, and on a thinly traded coin or a small exchange they can drift noticeably.
So every ticker makes a choice: show one exchange’s price, or show a blend.
Single-exchange feeds
Reading one large, liquid exchange directly is the common approach. The upside is speed and simplicity — a streaming connection delivers each trade as it happens, so the number on the screen is essentially real-time. The requirement is that the exchange is deep enough that its price is representative. A shallow market can jump on a single large order and briefly disagree with the rest of the world.
Turionics reads Coinbase (the default) or Binance, and you choose which in the control panel; coins one exchange doesn’t list come from the other automatically. Both are high-volume spot markets with public market-data endpoints that need no account. Binance’s rate limit (6,000 request-weight per minute per IP) is far more headroom than a single device needs.
Aggregator feeds
Services like CoinGecko and CoinMarketCap compute a volume-weighted average across many exchanges. That average is more robust to any one venue misbehaving, and it is what most “the price of Bitcoin” figures in the press refer to. The trade-off is a small amount of lag — the aggregator has to collect and blend before it publishes — and some aggregator tiers meter or charge for heavy use.
For a desk display, a representative single-exchange feed and an aggregator feed will look the same to the eye almost all the time. The difference shows up only in fast-moving conditions or on obscure coins.
How accurate is it?
For Bitcoin, Ethereum and other high-volume coins: very. The spread between major exchanges is typically a fraction of a percent, and a ticker on a good feed will match what you see on Coinbase or a news site to within the width of a rounding digit. Accuracy degrades for low-volume coins, where exchanges genuinely disagree, and during extreme volatility, where the feed you are on and the one someone else is on can briefly differ by more than usual.
How a crypto price ticker works follows the full chain from exchange to LED; what is a Bitcoin ticker covers the term itself.
The Turionics ticker reads Coinbase or Binance every second for Bitcoin and 1000+ coins, on an always-on single-colour LED display — no app, no account, no subscription.
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Home Wi-Fi blips and exchange APIs have brief outages. A well-built ticker keeps showing the last known price and reconnects in the background, rather than blanking, freezing, or — worst — showing a stale number with no indication it is stale. The device never holds anything sensitive: it reads a public price feed and nothing else, with no path to a wallet or an account.
What if a coin isn’t listed on the exchange you picked?
Not every coin trades everywhere: Coinbase doesn’t list some coins that Binance does, and the other way round. A Turionics ticker handles that on its own. Coinbase is the default source; if a coin isn’t there, the ticker notices within a second or two and takes that one coin from Binance instead, while everything else keeps streaming from your chosen exchange. With Binance selected, coins it doesn’t list come from Coinbase. You never have to switch anything by hand.
Common questions
Where does a crypto price ticker get its data?
From a cryptocurrency exchange’s public API — usually a single large exchange like Binance read directly, or a blended average from an aggregator such as CoinGecko or CoinMarketCap.
Is there one official Bitcoin price?
No. Each exchange has its own order book and last-traded price. Arbitrage keeps the major exchanges within a fraction of a percent of each other, but there is no single canonical number.
How accurate is a crypto ticker’s price?
For high-volume coins, accurate to within a rounding digit of what you would see on a major exchange or news site. Accuracy is lower for thinly traded coins and during extreme volatility.
Does a crypto ticker need an exchange account or API key?
No. Public market-data endpoints — including Binance’s — return prices without any login or key. The ticker only reads data; it cannot place trades or touch an account.
How often does the price update?
On a streaming single-exchange feed, about once per second. Aggregator feeds refresh a little slower because they blend multiple sources first.
The Turionics crypto price ticker reads the price directly from the exchange, every second.
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