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Questions tagged [exchanges]

places to trade ether with other currencies or assets

72
votes
6answers
271k views

How do I buy Ethereum with USD?

I am a complete noob at investing. I have never bought stock or invested in anything before but I have $300 I would like to turn into Ethereum. Could someone please tell me step by step how to ...
17
votes
3answers
4k views

How to programmatically detect and accept ETH and ERC20 deposits

I'm looking to replicate the functionality provided by cryptocurrency exchanges such as Kraken and Poloniex when it comes to depositing ETH and tokens. Namely: Users can generate and send funds to ...
13
votes
4answers
4k views

Where can I buy Ether?

Where are the best places to buy ether with the least resistance and lowest fees? Is there something like local bitcoin, but for ether?
12
votes
3answers
838 views

If the supply of Ether is finite, are there any mechanisms to deter hoarding?

The supply of bitcoin is capped at 21 million. The supply of Ether is similarly capped at ~90 million. If we are to assume that Ethereum will become more popular as time progresses, and if we also ...
12
votes
2answers
17k views

What is the difference between an exchange like Coinbase and a wallet like Jaxx, MEW, MetaMask?

What is the difference between storing ether with an exchange (e.g. Coinbase, Kraken, Gemini, Poloniex, Bittrex) and a wallet like Jaxx, MEW, MetaMask?
12
votes
4answers
74k views

How do I transfer funds from an exchange to a wallet I control?

This Q&A was spawned by the fact there's no one good place with this information. All answers will be wikis. A few of us are going to be collaborating on this effort. Please keep one answer per ...
11
votes
2answers
3k views

Why are smart contract outputs different from ordinary transactions?

A Coinbase exchange engineer said: "Depositing from smart contracts is hard. Smart contract outputs are not like normal ETH transactions and it is non-trivial for us to get notified when we ...
10
votes
1answer
172 views

Can ethereum really make a safe decentralized exchange?

I see there are a few ethereum decentralized exchanges out there. Are they really safe? Is there one currently in existing? Will this save me from getting MTgoxed in the future?
10
votes
1answer
2k views

Is it possible to create ICO crowdsale seamlessly accepting multiple assets?

Most of the ICO crowdsales accept ETH only. Some accept BTC. Very few accept other assets. I was thinking about creating crowdsale that would accept as many assets as possible. While creating, ...
10
votes
4answers
3k views

How do I buy Ethereum with USD - If I am citizen of not available in country in coin-base?

In order to buy Ethereum currency I have followed this How do I buy Ethereum with USD answer: But coinbase does not allow me buy ETH since I am a Turkish citizen. Probably same issue occur for ...
9
votes
1answer
2k views

ICO crypto-currencies accepted during the sale: ETH, BTC, or even fiat?

ICO contracts are meant to accept Ether as payin for the tokens sold, for example https://cartaxi.io/pre-ico or https://www.herocoin.io/ But there are a lot of ICOs running on Ethereum that accept ...
9
votes
2answers
821 views

How to handle ether deposits like exchanges do?

One of the core philosophies of Ethereum is decentralization. However, there are still many valid use cases to provide centralized wallet services, exchanges being one of the most well known examples. ...
8
votes
3answers
2k views

Can I sell a portion of my DAO tokens on a market place?

If I bought all my DAO tokens with the same account, will I be able to sell only a portion of them on a marketplace?
8
votes
2answers
6k views

How to recover BTC that wasn't converted into ETH by Shifty via Mist?

I tried the "deposit with BTC" option BTC transfer was recognized in "Awaiting Deposit" Then "Awaiting Exchange" timed out, I got a "try again" dialog, and was shown no way to get my BTC back or to ...
7
votes
3answers
25k views

Sent ether from wallet to bittrex, 12 hours later no balance on bittrex [closed]

So I made an account on bittrex and I created a hex address so I could transfer over my ether, I went into my wallet and sent 0.1 ether to bittrex, 12 hours later my bittrex account still shows a 0 ...
7
votes
1answer
1k views

How many exchanges have delisted ETH as a result of the proposed post DAO hack Ethereum hardfork?

So far I am only aware of the Cryptopia announcement below. Have any other exchanges delisted of threatened to delist ETH yet? If so, which exchanges and how many? ETH / BTC market is closing ...
7
votes
1answer
14k views

Coinbase and Kraken Transfer Costs

I just did my first transfer of ETH from Coinbase to Kraken, to see how it would work. I transferred 1 ETH, and Coinbase indicated that the transfer charge (the gas) would be .00042 ETH (as I would ...
7
votes
1answer
3k views

How does EtherDelta work?

I'm still learning Solidity and contract development. I have never used EtherDelta. I know it can be used for trading different tokens, but I would like to understand the following two things: How ...
7
votes
1answer
2k views

When do transactions on an exchange appear on etherscan?

Hopefully my question is self-explanatory. For example, I purchased some ether on Poloniex today. Within what time frame is that transaction likely to appear on etherscan?
7
votes
1answer
699 views

What happens with DGD in an exchange?

If I understand correctly, DGD pays you a small free on all digix gold trades. Now, what happens when you deposit your DGD in an exchange? The DGD is still yours, so you're supposed to receive the ...
6
votes
2answers
1k views

What does “resistance” mean in the context of a cryptocurrency exchange?

I was reading Where can I buy Ether? and they mention "least resistance" as a criterion for an exchange: Where are the best places to buy ether with the least resistance and lowest fees? What does ...
6
votes
2answers
5k views

Are funds returned if one transfers from an exchange to an invalid Ethereum address?

I transferred some ether form an exchange site to an invalid address (invalid in that the correct address was trailed by 6 numbers I accidentally pasted in). Looking for that address on Ethereum ...
6
votes
4answers
89k views

How to switch bitcoin to ether in coinbase [closed]

I have btc in coinbase, how do I switch some of it to ethers? I don't have a bank account attached to it, and don't want to. I tried the coinbase information, but it says I have to attach a bank ...
6
votes
2answers
5k views

How to transfer DAO from MyEtherWallet to Kraken? (DAOs transfer method)

Related: Transfer DAO's from Myetherwallet to Kraken How to withdraw Ether from The DAO? MyEtherWallet screenshot: The balance is low because all Ether was invested in DAO. Here is the Kraken ...
5
votes
3answers
2k views

Which exchange should I trust to provide ether price in USD?

There are many exchanges that provide APIs for getting the market price of ether in USD and other currencies. As an example of the different data sets: Cryptonator 1 eth = $19.27 CoinGecko 1 ...
5
votes
2answers
5k views

What is the difference between ICAP and HEX addresses?

I've read what Kraken have mentioned in the difference guide but I haven't understood it well. I plan to mine ethereum. What fits better for me?
5
votes
1answer
463 views

Can you solo mine directly to an address you don't have the private key for?

Is it possible to solo mine directly to an address you don't have the private key for. I would like to directly mine into my exchange address. Thank you
4
votes
2answers
296 views

How do I get tokens still unsupported after crowdsale?

If I want a token, say GNT, that is not listed on exchanges and I missed the presale, what are my options?
4
votes
2answers
1k views

When and if ETH converts to PoS who will receive the staking rewards?

For ETH stored on online exchanges will the exchanges receive all staking rewards or will they be passed along to their users that actually own the ETH?
4
votes
1answer
634 views

How do I recieve DAO tokens? What's the address?

I'm trying to buy some DAO tokens via shapeshift and it asks a DAO address to send the tokens to. Where do I find that address? Is it the same as my Ether wallet address?
4
votes
1answer
258 views

EtherEx decentralized exchange

Been waiting for a long time to be able to access a decentralized exchange. When will EtherEx be launched and will it support BTC ETH pair?
4
votes
1answer
2k views

Why is the price of ether on CEX.io higher than on Coinbase?

When I checked the price of Ether on CEX.io I noticed that there is a difference compared to Coinbase's price. Actually, the difference is more than 20$! Does anyone know why there is a difference ...
4
votes
1answer
170 views

Is Atomic swapping between ETH and ETC possible?

Wondering if cross chain atomic swapping between ETH and ETC without using poloniex, then the world can be merged in more cool way.
3
votes
2answers
667 views

Can I withdraw Ether from exchanges to a contract wallet?

I was making a withdraw from Bittrex to a contract wallet. I never received the ether. On the transaction it says: "Warning! An error occurred during contract execution" Is there a way to ...
3
votes
1answer
360 views

How do exchanges work with Ethereum?

I'm about to create an exchange and I want to trade ether on it. But I'm quite confused of how to handle my clients' wallets. I see that some exchanges like Poloniex receive the ether in my deposit ...
3
votes
1answer
322 views

Are there any decentralized local exchanges for euro/usd to ether?

Is it possible to have something like a DApp to find the closest Ether owner to purchase or sell ether? Something that can be used as a decentralized market.
3
votes
1answer
102 views

Is there a log of Ethereum Trading Volume for a given currency over time?

I know CoinMarketCap lists daily trading volumes for multiple currencies, but how do we access a log of these volumes for a given currency over time?
3
votes
2answers
11k views

How to buy GNT tokens using myetherwallet

this is my first time buying Ethereum tokens on mainnet. Probably I am doing something wrong, so I am willing to hear any comments or hints about this process. My ethereum address on mainnet is https:/...
3
votes
1answer
311 views

Accepting ether payments from exchange?

What would be the optimal way to accept order payments from users who have Ether on an exchange? I can't figure out how to link the orderID with the transaction, without creating a new contract for ...
3
votes
1answer
473 views

Reclaiming ETH from “The DAO” on Both ETC and ETH Chains

If before the fork I invested all my ether in "The DAO", then, if I understand correctly, after the fork, on the ETH chain I can withdraw my ETH from "The DAO" and get all of it back, which I have ...
3
votes
1answer
546 views

how does exchanges manage user's Ethereum wallets?

I noticed that Binance exchange created an unique address for every user to deposit ERC20 tokens. after the deposit, Binance transfer those tokens to a specific address, which is marked as "Binance"(...
3
votes
2answers
784 views

How can I get Digix Dao ethereum tokens off of an exchange (coinbase)

Basically what happened is that I tried to trade 30 ether for digix dao tokens using shapeshift. I entered an ethereum address on myetherwallet as the destination address where I wanted the DGD to go ...
3
votes
1answer
566 views

Smart Contract with stable coin

Is there any stable coin, which can already be used with smart contracts? If not, is there a possibility to exchange a stable coin in real time into a smart contract feasible coin like ETH by help ...
3
votes
0answers
2k views

Missing Ethereum Transaction! From Poloniex to MyEtherWaller

I have sent my transaction from poloniex to Myetherwallet and transaction showed up only for 10min and after that it disappeared completely without any trace of it. it didn't return to my original ...
3
votes
0answers
2k views

How to purchase ETH at one of the top ETH exchanges (for Singapore residents)? [closed]

I'm based in Singapore and would like to know the options I have for buying Ethereum. We don't have a local ETH exchange, but there's a BTC exchange called FYBSG. I suppose I can do Singapore Dollar ...
2
votes
2answers
353 views

Why do token transfers sent to the Binance wallet cost very little gas?

I noticed that token transfers sent to Binance are barely using more gas than a regular Ether transfer. ~22,000 gas. Other transfers of these tokens seem to charge almost double the amount of gas. ...
2
votes
3answers
471 views

Is it safe to keep Ether on an exchanges during the Homestead switchover?

There are several exchanges like Kraken, Gatecoin, etc. Is it safe to keep Ether on one of these exchanges when the switchover from Pioneer to Homestead takes place?
2
votes
3answers
767 views

How to obtain small quantities of Ether?

As a newcomer currently evaluating the platform (for smart-contracts, experimentally, not as an investment, hence the low amount - I just need to pay for gas), I don't want to commit any large amount ...
2
votes
1answer
844 views

Getting TX hash back but transactions not showing on blockchain?

So I upgraded geth yesterday to 1.3.4. I've been trying to send ETH to my Poloniex wallet, and every time I attempt a deposit my terminal returns a TX hash, but this hash never shows up in the block ...
2
votes
1answer
277 views

How are some addresses known to belong to certain exchanges?

I searched for a Ethereum address into etherscan.io and it showed me that it was a Poloniex address. That address was the receiving address of a wallet I created on Poloniex. How did etherscan know it ...