refers to the rate at which two currencies are exchanged one-for-another.

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13 views

Is there a quotes/exchange-rate API that offers JSONP responses, or permissive CORS headers?

I'd like to make a purely browser-side conversion calculator. The APIs I've found so far don't seem to offer JSONP or CORS to allow cross-domain data consumption.
2
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1answer
48 views

Getting historic exchange data through an API

I'm trying my hands on a trading bot, but I need a website to pull trade data for min. the last 3 days. This can be from any major exchange. Eg. the exact same as this: ...
3
votes
3answers
576 views

How can Auroracoin be the 4th crypto-coin by market cap if it's unreleased yet?

Auroracoin has become the 4th biggest crypto-currency measured in market capitalization. How can an as-yet unreleased coin have market value if it's not available for exchange (either for fiat or for ...
0
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1answer
82 views

What is anonymous and safe api to get bitcoin Exchange Rates?

What is anonymous and safe api to get bitcoin Exchange Rates like BTC/USD and BTC/EUR without trace my ip ? i used tor service, i search and found blockchain api contain Exchange Rates Feed ...
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1answer
35 views

Detailed overview over old exchange rate

I would like to create a detailed overview about the exchange rate of bitcoins over the last months. Unfortunately, all I can find are lists with one value per day, but I would like to have much more ...
0
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0answers
94 views

Why is the bittylicious.com price in the UK so high?

Bittylicious.com is probably the simplest and one of most used Bitcoin purchase platforms in the United Kingdom. At the site, without submitting identification, the customer agrees to buy an amount of ...
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2answers
100 views

why does Indian Bitcoin exchanges offer huge spreads( Bid and Ask)?

Why does Indian bitcoin exchnages are offering huge spread and why not international exchanges(ex:bitstamp,btc-e)
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3answers
546 views

Where do these coins gain their value?

I have been mining coins for a long time (started with BTC/LTC years ago, moved to altcoins recently) and have realized I am not clear on the actual source of the value. Do the exchanges deem the ...
0
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3answers
155 views

How do bitcoin exchanges set prices?

What do exchanges base their bitcoin and alt currency prices on ? What makes them say that they will sell bitcoins for certain amount ? Do they increase and decrease their price based on what other ...
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2answers
75 views

Hourly price notifications on Linux [closed]

I'm running Debian & Ubuntu and I've been using this script running in a terminal for a while but I find I easily get obsessed with the price. Instead I'd rather get, say hourly, desktop ...
0
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1answer
40 views

Earliest bitcoin forex & product purchases

How did bitcoin trade for conventional currency in the earliest days? Was there much demand to exchange it for conventional currencies, or were those who sold goods & services content with ...
1
vote
1answer
222 views

Where to get difficulty data for all crypto coins?

I need to get difficulty data and exchange rate for past 10 days for making a graph out of it (i.e., for all coins). Can anyone suggest where can I get it?
1
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1answer
26 views

Are Closed Prices just the last trade or are they averaged?

Since these exchanges run 24/7, are the posted close prices (say if the chart shows 1 hour increments like on bitcoinwisdom.com) based on the last trade for that time frame? Or are they averaged over ...
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1answer
78 views

Which exchange rate should I use for calculating Bitcoin exchange rates?

I'm using the Blockchain exchange rate API to add a Bitcoin exchange rate calculating function to one of my apps. I'm not sure which value I should be using. For each currency type (USD, EUR, etc.) ...
2
votes
1answer
577 views

BTC/USD price on BTC-e

Can you explain me in detail, what affect the price on BTC-e ? I understand the mechanic, like if there is strong demand and limited supply the price goes up. But how does it work on BTC-e? Because to ...
-1
votes
1answer
61 views

Question about Bitcoin rate [closed]

1 or 2 months ago, 1BTC=120-130$. Today, 1BTC= 900$ at Bitstamp rate. Is that means if I bought BTC 2 months ago and I try to sell them today, I earn 780$ per BTC?
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2answers
175 views

Popularity based mining (variable block reward)

I am thinking of an alternative mining scheme where block reward would grow (or decrease) with popularity of the coin. The rationale behind this idea is to make an exchange rate more stable since ...
0
votes
1answer
116 views

What is the difference between these two “instruments” ICBIT charts

Sorry for the vague question, I will improve it once I get an answer... In the picture bellow I marked two "Instruments" that are being used for trading on ICBIT. I don't understand what the ...
0
votes
1answer
323 views

When adding funds to wallet via snapswap, what exchange rate is in place?

I just added $1500 to my ripple wallet, but its showing up as XRPs in my wallet. Not only that, but the exchange rate is incredibly terrible, for 500 dollars, ripple gave me 500XRPs? How is it that I ...
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2answers
290 views

Which rate is the best rate to go by for Bitcoin prices

There are so many exchanges and local exchanges out there. If I want to buy a bitcoin, how do you decide which value to go by? Some of these exchanges vary from few dollars to $200 difference. I know ...
-1
votes
2answers
94 views

Would trading with Bitcoin be worth?

I'm new in the world of Bitcoin yet, and my first toght was that I my buy BTCs for dollars and then sell them if the exchange rate is bigger. Would it be worth? Or I shouldn't even give it a try?
0
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1answer
212 views

Understanding Bitcoin prices

I followed the prices of Bitcoins during this day, but I am actually very cofused as to why Preev reports it always about $70-$100 less than Bitcoinity. News websites say the price soared to $900 ...
5
votes
2answers
963 views

Does LTC price correlates to BTC price?

I always expected the LTC and BTC exchange rate to show synchronous tops/bottoms, but to my surprise LTC seems to remains stable during BTC crashes (and vice versa). Is this because I'm a novice at ...
-1
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1answer
678 views

Buying on one exchange then selling on the other

I'm curious as to what is keeping the majority of the people from buying on one exchange, where the going USD/BTC rare is cheaper, and selling it on another, where the rate can be USD$50 to USD$100 ...
3
votes
4answers
706 views

How to stabilize Bitcoin's exchange rate (reduce volatility)?

Is it possible to stabilize exchange rate(s) of Bitcoin to FIAT currencies (USD, EUR etc.) and make the rates less volatile only by raising the market capitalization (more people buy/invest in Bitcoin ...
2
votes
1answer
289 views

Are coinbase.com purchases effectively bitcoin futures?

I just purchased 0.1 BTC from coinbase with a bank transfer. Coinbase informed me that the transaction would take 4 business days to complete. So I don't have any bitcoins yet, but Coinbase promises ...
0
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1answer
691 views

Why are the BTC exchange rates different from website to website [duplicate]

For instance here: http://bitcoinwatch.com/ one exchange lists the BTC-USD rate at 133, while the other one lists at 122.
6
votes
2answers
168 views

Freelancer: billing my customers in bitcoin

I do freelance work and I was considering offering my customers the option of paying me in Bitcoin. Given that bills are usually paid in 2 - 4 weeks after sending them, and the exchange is still quite ...
8
votes
1answer
6k views

Why is MTGOX's Price/Bitcoin higher than most other exchanges?

I've been watching BitCoins for the last few months, and noticed that MTGOX's price per bitcoin is always higher than the price per bitcoin of similar exchanges, (eg cavirtex.com, and bitstamp.com). ...
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vote
1answer
437 views

How do you find historic VWAP at a given time in a specific exchange?

Suppose I want to find the VWAP of BTC-USD in a specific exchange (e.g. Bitstamp) at a specific point in time (e.g. 1/1/2013 00:00:00). What's an easy way to do this?
5
votes
2answers
97 views

BTCUSD mean value

Recently I've heard of a site which gathers prices from some exchanges, and gives you a mean value. I've tried googling for it and I failed, couldn't find anything related for some reason. Could you ...
1
vote
1answer
66 views

Why does Crypto Street have backwards pairs?

I'm looking at the crypto street home page and the pairs are backwards when compared to other exchanges. It doesn't appear to be a mistake because the prices are inverted compared to other exchanges - ...
5
votes
5answers
2k views

Displaying price in BTC based on USD exchange rate

This is a pretty classic programming question, but I think it is a very common one for the Bitcoin community, and would be helpful to have the code publicly available. My preference is for a php ...
4
votes
4answers
333 views

Is there some website that aggregates all the Bitcoin exchange prices so small businesses can find out the current market rate and react accordingly? [closed]

I have a small business in doing repairs and I'm willing to take bitcoin, but i was wondering if there is a site that aggregates all the bitcoin exchange prices so I can get an idea of what price to ...
3
votes
2answers
84 views

Effect of media coverage on the exchange rate?

When mainstream media or some high-profile blogs etc. report about Bitcoin, does it have a direct effect on the exchange rate? Are there any examples in the past? Let’s say an author is about to ...
7
votes
3answers
504 views

Why does the Bitcoin conversion rate change wildly?

I don't understand why the conversion rate for bitcoin changes wildly. Why does it?
1
vote
1answer
214 views

How do you know how much a product costs in Bitcoins?

When paying with Bitcoins how does that affect the price of the service or item? For example If I buy something that costs 20 CAD using Bitcoins and the exchange rate is 1 CAD = 0.01 BTC does that ...
2
votes
3answers
4k views

Simplest way of obtaining MtGox exchange rate via an API?

I want to do a simple app that refreshes every minute to tell me the current exchange rate by Mtgox but I have a problem interpreting the JSON that some APIs return: Mtgox's fast ticker returns this ...
2
votes
3answers
775 views

When purchasing an item through BitPay, how do their exchange rates compare with the market exchange rates?

BitPay allows merchants to price their products in USD, and receive USD when a customer pays using Bitcoin. The exchange rate used at the time of purchase is calculated somehow by BitPay, but their ...
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vote
1answer
8k views

Where can I find historical exchange rate data for BTC/USD? [duplicate]

I'm looking for historical exchange rate data for Bitcoins/USD beginning in 2010, but I haven't been successful. This is for academic research. I tried bitchart.org. I don't know how to access the ...
3
votes
1answer
502 views

How does Ripple decide on the exchange rate between different currencies?

When A pays in USD but B receives EUR, how exactly does Ripple decide on the EUR/USD exchange rate?
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2answers
136 views

How much does an online store that sells in multiple currencies need to know about exchange rates?

Please take the title with a grain of salt. I couldn't make it short and also implying all that I am about to ask here. Consider Yen devaluation. Forex traders constantly buy USD and sell JPY, or ...
18
votes
4answers
9k views

Why do the price of bitcoins vary wildly between exchanges?

▼ mtgoxUSD 95.0000 108.452 -12.404% 2428892 ▼ btc24EUR 67.5047 89.036 -24.183% 348160 ▼ btceUSD 82.9900 106.794 -22.289% 277286 ▼ bitstampUSD 75.9900 109.320 ...
0
votes
2answers
532 views

Calculating the current price of 1 BTC?

I am planning to get into BTC as I have some PC with xfire (7970's) laying around here and I am currently trying to learn more about it; what I would like to first understand is BTC pricing to make ...
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votes
2answers
249 views

how do i calculate bitcoin to USD manually [closed]

As of now 1 bit-coin is $229 but what if I wanted to find out how much 0.005 bit-coins cost? What does the math look like? thanks
5
votes
4answers
4k views

Is anyone taking advantage of different prices across exchanges?

Say I have funds on two exchanges. Whenever the price of bitcoin is higher on the first one, I sell on that one and buy on the other one. Is anyone doing this or has a program that does this? Is it ...
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0answers
83 views

Has anyone here used bitcoins to swap dollars for pesos in Argentina?

I've seen some chatter online about using bitcoins as a workaround for Argentinian currency controls (see below) and I'd like to speak to people who have actually done that, whether it means ...
5
votes
1answer
99 views

How does Ripple decide which offer to fulfil if they offer the same rate?

If two offers have the same exchange rate, how does Ripple decide which one to fulfil first?
6
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1answer
408 views

Is Ripple's trade history recorded?

Currently there isn't a graph of the ripple trade values. I'd like to know if each trade is recorded in the Ripple's equivalent of the blockchain, so that if in future someone wants to build such ...
4
votes
1answer
2k views

What and where is the easiest way to convert bitcoin back to cash without showing ID?

so im thinking about purchasing a big bitcoin miner, but the question now is how do i convert my BTC back to cash? I don't feel safe giving out my info to mtgox or other exchanges as they require ...