How Changelly suggests the best exchange rates

Uncategorized by Maret 2 Comments
How Changelly suggests the best exchange rates

Changelly is the best way to exchange your crypto coins just in a few clicks. From the first day of launch, we provide our customers with the most profitable rates. Today we’re gonna tell you how we do that. You’ll learn how Changelly calculates and suggests the best rates and see all the magic going on between transactions.

Trading platforms

Changelly is connected via its API to the largest and reputable trading crypto platforms, like HitBTC, Poloniex, Bittrex, etc. These are exchanges for professional traders and investors. They contain many special services, diagrams, bid/ask orders and other techy features which may seem too tricky for a regular user.

In fact, things get easier to understand if we take a closer look.  

Here is an Bitcoin / Ethereum (BTC/ETH) order book from

ETH / BTC exchange order book

You can see bids (buy orders) on the left, and asks (sell orders) on the right. When a bid meets an ask, the trading is closed.

There is always a difference between the lowest bid buying and the lowest ask selling, named the bid-ask spread. On the order book, it looks like a tiny hole at the bottom.

On the net, you might have seen ticker prices. Basically, they represent the half of the difference between the lowest bid and the higher ask. On the graph, this rate is shown in the middle of the spread.

On the right, you may see something like a stairway that is formed by the increasing amount of coins to be purchased. Each new level means a new price level.

When you want to exchange cryptos, you influence the market and move the order book.

For example, when you exchange ETH to BTC, it’s a bid (buy), the ETH price goes down. Vice versa, if you exchange BTC to ETH, that’s an ask (selling), the ETH price moves up.

Thus, the more coins you ask to exchange, the higher price for each one you’ll get. That’s the market’s principle.

The rates Changelly is showing in real time are based on the current rates of trading platforms.

How Changelly works

Now, let’s see how Changelly calculates and shows the rates.

You’re on the homepage, looking for the best exchange rate. You select a crypto and an amount you want to exchange. For example, that’s the Bitcoin / Ethereum (ETH/BTC) pair.

What you see

ETH / BTC exchange

What Changelly does

ETH / BTC exchange rateWhen you select the coins you want to get, the system sends a rate request to the exchanges. After the exchanges receive the request, Changelly gets the answer showing up in the field. All this process is going in milliseconds.

As the rates on exchange are constantly flowing, you see an estimated rate which may differ from the real one.

Changelly is a link between you and the trading platforms. All these complicated calculations and rate comparisons are done for you and shown in a simple interface.

Bottom line

Changelly is connected to several biggest trade platforms on the crypto market. All the rates on Changelly are displayed in real time directly from these platforms. The rates are estimated and may vary due to the volatility of cryptocoins. The more coins you want to exchange, the higher the estimated rate will be.

You can try to buy Ethereum for Bitcoin by yourself on Changelly.

Comments ( 2 )

  1. Replydbongc
    Hello So in simple words changelly can be used by a peson who want to make profit just exchanging crypto currencies. changelly buys low when you buy and sell high when you sell?
    • ReplyMaret
      Here is an explanation of how the rate is calculated. The more the amount to exchange, the higher the rate of a demanded crypto.

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