24h change column shows 100% when trade data is not available from the past day (no trades at all). Probably, it would be better to make it 0 in this case which is possibly more reasonable.

The message above is shown for every transaction you sign on a website. From what I know, it is shown for all transactions on all websites once tx sign is requested. Currently, there is a bug on a website and there is a redundant ask to sign a message (even though you've already clicked "Submit" in the previous Metamask window). It will be fixed in the next update of the website which is happening very soon. For now, just press "Cancel" when asked to sign a message and there should be no side effects from that.

Thanks for asking good questions!

Hello, ETHS community!

ETHS trading is now available on ERC20 DEX. Good trading to all of you!

I've added WSPU2 tokens to the exchange.

Hello, Patientory community!

PTOY trading is now available on ERC20 DEX. Good trading to all of you!

Hello, Nexium community!

NXC trading is now available on ERC20 DEX. Good trading to all of you!

It is similar to ED, but not exactly like it (for example, the entire order book is stored on the blockchain and everyone can see it). If you have any particular thing in mind that you'd like to see different from ED, please let me know. What kind of troubles you are experiencing with ED?

When trade is performed there is maker and taker. Maker is the one who placed the first order, taker is the one who triggers the trade with his order. Depending on who you are you are paying fee of either 0.05% (for maker) or 0.15% (for taker). Let's assume you are buying tokens using 1ETH and your order has been sitting in the order book for a while (you are maker). When your order is executed you'll be charged 0.05% of 1ETH which is 0.0005ETH.

Is this correct contract of the token: https://etherscan.io/address/0x5a36f5cc3ea34c1c8b1cd9c60e3db2d3a13920d4 ? If so, I can add it without any fees.

Yes, ERC20 DEX is new and I agree you should be mindful when making trades on a new exchange. You can start and build your experience by putting a very small order and see how it works for you. This way you learn something new and then decide if you would like to continue.

Yes, you are right, 0.001 BTC is quite heavy for a fee. On our exchange there is no deposit/withdrawal at all and you trade directly from your wallet. As a result you don't need to pay these fees when you trade on ERC20 DEX.

Thanks for your feedback! Yes, sure, let me try to explain it better. Let's assume you are buying MANA coins. Here are the steps:
1. Login on exchange with Metamask account which you would like to use to buy MANA
2. To buy MANA you need to set a price (for example, 0.00012 ETH) and amount of coins you would like to buy (for example, 0.1 MANA) and hit "OK" button.
3. Metamask Window will popup and you will be asked to enter transaction details and sign the transaction
4. At the end, exchange will give you a link to block explorer to see how your transaction is going
5. Once trade is executed you will get 0.1 MANA coin on your account (or you can cancel the order at any time)

Now, let's assume you would like to sell 1 MANA coin. Here are the steps:
Background: Exchange never keeps your money, except for open orders. Once you set an open order, exchange transact from coin contract to exchange contract to lock coins for a trade (as long as it is not cancelled).
1. Login on exchange with Metamask account which you would like to use to sell MANA
2. Set MANA allowance to 1 (this is a call to MANA contract to set amount of coins available for the exchange). Basically, it is upper limit on how many MANA coins exchange can transfer from your account to an exchange contract. Hit "OK".
3. To sell MANA you need to set a price (for example, 0.00012 ETH) and amount of coins you would like to sell (for example, 0.1 MANA) and hit "OK" button.
4. Metamask Window will popup and you will be asked to enter transaction details and sign the transaction
5. At the end, exchange will give you a link to block explorer to see how your transaction is going.

Please let me know if you see any issues with this instruction. As you pointed out, some aspects may be not very clear for users who just start and we will be working to make things in a better way. Thanks for giving it a try!

Thanks a lot! Indeed, as exchange is growing we will be building our support team and I will contact you as soon as we start doing so. Glad you are so enthusiastic about joining us!

Hello, STORJ community!

STORJ trading is now available on ERC20 DEX. Good trading to all of you!

Hello, Decentraland community!

MANA trading is now available on ERC20 DEX. Good trading to all of you!

Hello, DRGN community!

DRGN trading is now available on ERC20 DEX. Good trading to all of you!

ETH market is opened with first three coins added for the trading: MANA, STORJ, DRGN

Exactly right! And this is why we are spending a lot of time to make it friendly to users who are not very much experienced with crypto. I hope you will like it! Yes, I remember that etherdelta attack as well as many others that happened recently. For myself, I collect all contract attack ideas and use them as a knowledge base for myself when writing contracts.

Hello everyone,

My name is Anton and I am an owner of ERC20 DEX (http://erc20.exchange). This is an exchange that I always wanted to build: ease of use, mobile-friendly, private and transparent for comfortable trading. Here is the look and feel of the exchange:



Key features which are already in place and fully working:
- DEX core functionality, including nodes and high-performance matcher
- ETH market with 80+ coins for trading
- Guest mode to let users with no node connection to browse comfortably
- Trezor support to trade directly from HW wallet
- ETH testnet is presented as a market where people can learn how to trade on DEX without any risk to lose money (like a demo account)
- Ability to add your own coin
- Dedicated layout for mobile platforms
- Best in class charting engine which is equally powerful on desktop and mobile platforms

Main policy of the exchange is to minimize information collected from the users. That's why we don't have logins, passwords and never ask for your emails. Your wallet is your key to the exchange. Currently, the entire development is fully self-funded (our team covers everything from UI design to backend servers) to maintain full independency in decision making processes to avoid bias to one or another coin or service. However, with additional funds I would be able to get more people on board and move according to the exchange roadmap faster and more efficiently, strengthening the crypto community with new services.

BAG Token
That is why I am launching a BAG token (name is due to the next big service we are planning to launch: bagholder.org) which in the beginning will serve several purposes:
1. It is used for bounty program payouts (see bounty thread: https://bitcointalk.org/index.php?topic=4313319.msg38688800#msg38688800)
2. All exchange fees from this moment will be solely used to buyback BAG token from the market (I'll be posting all buy back transactions as a prove)

In the future, BAG token will be used as an exclusive way to make payments for services available on bagholder.org.

Amount of tokens issued: 10 000 000 BAG
Digits: 8
Contract: 0x428Fb1B92dcEDaF61e910A23C008d900A8D1a2ce (ETH chain)

Only 1 000 000 BAG tokens are going to be placed on the market to sell to the community (basically, 10% stake in the exchange business). The rest will be kept out of the market with no near future plans for them (at least until we launch bagholder.org). They will be pegged to $0.5 from the beginning (expressed in ETH price). However, every week the price will be increasing by $0.05 until it reaches $1 (or all tokens are sold, whatever happens earlier). Crypto investments are always risky, there is no doubt, but I will do my best to drive exchange business and buy back tokens sold to the community. I do believe in this community and respect a lot those who take the opportunities and support early businesses. I'd like these people to get rewarded for that as they truly deserve.

Here is where you can buy your stake in exchange business, BAG tokens: http://erc20.exchange/ (ETH market, BAG token)

Roadmap
* Beyond the features listed above we are planning to expand and cover erc721 trading (non-fungible tokens). We already acquired erc721.exchange domain for this.
* Offchain orders to perform more trades with less overhead for users
* Protocol for other DEXs to leverage our pool of orders (we've got all the tech required)
* Community service: bagholder.org which is going to be an information platform with various micro services useful for the community (cannot give more information at this point)
* Derivatives trading

Contacts
Initial thread about the exchange: https://bitcointalk.org/index.php?topic=3061769.100
Support Contact: support@erc20.exchange
Business Contact: business@erc20.exchange

Social
Follow us for news and updates!
Twitter: @ERC20Exchange
Twitter account has been limited in functions by Twitter for unknown reason (as many other accounts last day), but I hope it will be returned to normal once they finish clean up for giveaway spams.

Bounties
Bounty campaign: https://bitcointalk.org/index.php?topic=4313319.new#new

Feel free to ask any questions and I always appreciate feedback and suggestions!