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Frequently Asked Questions

  • Bounty campaign - How can I receive my BCIO tokens?
    To receive your BCIO tokens directly on your Blockchain.io account:

    - Please create your account on the blockchain.io exchange with the same email address you used to participate to the bounty program,
    - Then, please go to the « WALLETS » section and click on the BCIO wallet to generate the address. It can take several minutes to be generated,
    - For the Top 25, please do not forget to activate your 2FA.

    You will not see your tokens directly. Distribution is done every week.

    The last day to generate the BCIO wallet address to receive the airdrop tokens is August, 23.
    For the Top 25, the last day is October, 23.

    All the details can also be found here: https://blockchain.io/bounty-results/

    If you need further information, please contact our support team by email at [email protected]
  • Concept - How to start on Blockchain.io?
    Welcome to Blockchain.io!

    You will find here the main information to start trading on the platform. Would you have any question, please contact our support team by email at [email protected]:

    - Registration:
    You can create an account on the signup page. Fill in your email address and password, and confirm your account through the confirmation email we’ve sent you by email:

    - Platform structure: you are able to access:
    • The « profile » section where you can modify your password, access the KYC-level processes and select 2FA options,
    • The « wallets » section which displays all your cryptocurrency public addresses to deposit and also an option to withdraw them. Do not forget to confirm your withdrawals through the confirmation email we’ll send you for each new transaction.
    • The « buy/sell » section where you’re able to buy and sell all cryptocurrencies with market orders.
    • The « open orders » section which displays your order history.
    • The « history » section which keeps record of all the deposits/withdrawals made on your account. You are able to export each history.
    • The « advanced trading » section where you can buy and sell with market or limit orders. You’ll find there your account details and you can use the chart features to analyze your trades. If a limit trade order is pending execution, you can cancel it in the « open orders » section, at any time. If it has been partially filled, you can still cancel the remaining amount.

    - How to modify your profile?
    You can change your password in the « profile » section of your account, activate or deactivate your 2FA, as well as upgrade your account level. Regarding other types of changes such as : change of email address, mailing address or phone number, please contact our support team or send an email to [email protected].

    - How to manage your 2FA? You can activate or deactivate your 2FA in the « profile » section of your account. If you’re unable to log in because of your 2FA, please refer to the following article: « I cannot login with my 2FA ».

    - How to pass KYC and upgrade your account level? You can upgrade your account level to increase the withdrawal limit of your profile. For more information on the withdrawal limit, please read the article: « How to verify my account and upgrade level ». If you are having trouble uploading your documents, please read the following article: « I cannot upload my documents ».

    - We charge 0,1% fees on Blockchain.io. Should you require further information on trading discounts with BCIO token, please read the following article: « What are the fees and minimum amounts / trade values ? ».

    - BCIO token is a utility token. It will grant you trading discounts on our platform and will allocate you participation rights to surveys and polls. For additional information, please read the following article: « How can I use my BCIO tokens ».

    - Blockchain.io is a crypto to crypto exchange, whereas Paymium is a crypto to fiat exchange. Transfering bitcoins between both 2 platforms is free of charge.

    - Blockchain.io provides ICO campaign support and token listing services to assist entrepreneurs in planning and executing their fundraising campaigns. Should you require further information, please refer to the following article: « What ICO services do we provide ? ».

    - If you wish to list your token, please contact us by email at [email protected] and provide us with as many details as possible. For additional information about token listing, please read the following article: « How to list a token on Blockchain.io? ».

    If you need further information, please contact our support team by email at [email protected]
  • Concept - What is Blockchain.io?
    Blockchain.io is a new trading platform created by Paymium's team in 2018. Paymium is a French pioneering and experienced Bitcoin exchange platform created back in 2011. Since its creation, we’ve always worked on improving security, reliability and meeting the regulation to enhance the stability and solidity of our model.

    We have been working with various actors such as regulators, audit professionals and advisors to build a leading European platform that meets the highest standards in terms of regulation and security.

    Our main goals are the following:
    • Developing a cryptocurrency exchange built on Paymium’s proven security and technological record with a high level of digital asset protection and safe record of transactions,
    • Building decentralized settlement on fair exchange protocols enabling cryptocurrency atomic swaps to mitigate counter-part risk,
    • Giving liquidity and technology services to execute third-party ICO’s with new listing and market making services to foster enhanced token liquidity.

    Please feel free to read our whitepaper by following this link.

    With Blockchain.io, we want to develop blockchain technology and cryptocurrency usages with a stable and confident environment to meet European laws: welcome to the Internet of Value !

    If you need further information, please contact our support team by email at [email protected]
  • Concept - What is the connection between Blockchain.io and Paymium?
    Blockchain.io is a crypto to crypto exchange.

    Paymium is a crypto to fiat exchange. As of today, Euro is the only fiat currency available for trading. We’ll add more fiat currencies soon.

    Paymium is the first European platform for purchasing and exchanging bitcoins against euros, fully operating in accordance with European regulations. It allows its users to swap Bitcoin for euros and to transfer them. This partnership between Paymium and Blockchain.io provides an “All-Encompassing” European cryptocurrency gateway and exchange.

    Here is a list of the advantages of this partnership:
    • We charge no fees for BTC transfers between Blockchain.io and Paymium.
    • It is fully compliant with European regulations.
    • It provides a gateway to fiat currency networks.
    • It supports deposits from all platforms and wallets.

    If you need further information, please contact our support team by email at [email protected]
  • Concept - Which cryptocurrencies/tokens are available on Blockchain.io?
    Here are the coins and tokens available on our platform:
    • Blockchain.io token (BCIO),
    • Basic Attention Token (BAT),
    • Bitcoin (BTC),
    • Bitcoin Cash (BCH),
    • DAI Stablecoin (DAI),
    • Ethereum (ETH),
    • Litecoin (LTC),
    • Ripple (XRP): Coming soon.

    More coins and tokens will be added soon.

    If you need further information, please contact our support team by email at [email protected]
  • Concept - Where I can find the smart contract related to BCIO token generation?
    You can find more information about our smart contract here:
    https://medium.com/blockchainio/official-blockchainio-smart-contract-released-dc98f8af3272

    Here is the official BCIO smart contract public address: 0xCDC412F306e0C51e3249B88C65423Cd16b322673

    Smart contracts with different public addresses claiming to manage BCIO tokens are not affiliated with Blockchain.io project and are likely to be scams.

    You can access the smart contract on EtherScan through the following URL: https://etherscan.io/address/0xCDC412F306e0C51e3249B88C65423Cd16b322673

    We also registered the following custom URL to safely redirect to the official Blockchain.io smart-contrat: https://etherscan.io/address/blockchainio.eth
  • Concept - How can I use my BCIO tokens?
    From May 23, 2019, you will be able to buy BCIO tokens on our platform and you will benefit from:

    • Discounted trading on all trading fees according to the size of the BCIO token balance you hold on your wallet,
    • Participation rights to surveys and polls, according to your BCIO tokens holdings, to contribute to Blockchain.io's roadmap (new token listings, technological and functional features, buyback programs, etc…).

    Please find below more details on the discounts:

    Payment fees:

    All Transaction fees paid with cryptocurrencies will be automatically deducted from the corresponding Wallet, once the transaction has been executed.
    All Exchange trades are subject to trading fees, with the exception of BCIO Tokens purchases.
    The BCIO Token allows you to trade on the Blockchain.io exchange with discounted trade fees. We will send you a cashback refund (a percentage of your trade fees) at the end of each month. The more BCIO Tokens you hold, the higher percentage of your fees you will receive as cashback. The amount of the discount is determined by the average BCIO Token balance during the month (for more information, please read this article).
    In a few months, the cashback will be instantly credited to your BCIO account when you make a trade.
    In the future, BCIO tokens could also be used to pay others services such as token listing, ICO investing or lending.

    If you need further information, please contact our support team by email at [email protected]
  • Concept - Where can I buy BCIO token after the ICO has ended?
    BCIO Token is available for purchase on our platform since May 2019. You will be able to transfer your tokens through the Ethereum network, from Blockchain.io to other exchanges.

    If you need further information, please contact our support team by email at [email protected]
  • Concept - What are the fees and minimum amounts/trade values?
    Deposits are free of charge.

    We charge 0,1% of fees on the platform (except for BCIO/BTC pairs which are free of charge with a « Bid » order). Trading discounts apply when you pay the fees in BCIO Token.

    Below are presented the percentage reduction granted according to your BCIO status (based on your Token balance):

    • Iron: <500 BCIO - 10%,
    • Carbon: 500 BCIO - 20%,
    • Titanium: 2 500 BCIO - 30%,
    • Bronze: 10 000 BCIO - 40%,
    • Silver: 30 000 BCIO - 50%,
    • Gold: 60 000 BCIO - 60%,
    • Platinum: 120 000 BCIO - 70%,
    • Sapphire: 685 000 BCIO - 90%,
    • Diamond: 1 500 000 BCIO - 99%.

    Here are the minimum amounts for trading each pair:

    • BAT/BTC: 20 BAT,
    • BCH/BTC: 0,01 BCH,
    • BCIO/BTC: 160 BCIO,
    • ETH/BTC: 0,02 ETH,
    • LTC/BTC: 0,1 LTC,
    • XRP/BTC: 10 XRP (available soon).

    Here are the minimum amounts and fees for withdrawals:

    • BAT: minimum: 8 BAT/ fee: 4 BAT,
    • BCH: minimum: 0,002 BCH / fee: 0,001 BCH,
    • BCIO: minimum: 100 BCIO/ fee: 9 BCIO,
    • BTC: minimum: 0,002 BTC/ fee: 0,0005 BTC,
    • DAI: minimum: 2,8 DAI/ fee: 1,4 DAI,
    • ETH: minimum: 0,02 ETH / fee: 0,01 ETH,
    • LTC: minimum: 0,002 LTC / fee: 0,001 LTC,
    • XRP: minimum: 22 XRP / fee: 0,25 XRP (available soon).

    If you need further information, please contact our support team by email at [email protected]
  • Concept - What is Blockchain.io «referral program»?
    This feature will be available soon.

    If you need further information, please contact our support team by email at [email protected]
  • Concept - What is the difference between a Centralized Exchange (CEX) and a Decentralized Exchange (DEX)?
    Centralized Exchange (CEX):

    Centralized exchanges (CEX) operate transactions between crypto or/and fiat currencies by providing a third-party technology. A centralized server executes the transactions and the private keys securing the funds are not owned by the user.

    Below are presented the main benefits of centralized trading platforms:

    • Short delays: to generate a new block, each and every bitcoin transaction needs to be confirmed on the blockchain. For the sake of algorithmic security, a transaction requires at least 6 blocks to be confirmed. As a new bitcoin block needs approximately 10 minutes to generate, you should have to wait around 1 hour before a transaction has been confirmed. To execute a transaction within seconds, the Centralized Exchange would require internal account’s transfers to increase the transaction speed.

    • High liquidity with high trading volume: thanks to its high transaction speed and since the exchange market has relied on centralized technology, such platforms have a very large user base. It enables them to have high liquidity on the platform, making it easy to find a counterpart for any trades made.

    • Lastly, some centralized exchanges can also support fiat payments, which is not the case for decentralized platforms.

    However, there is one main disadvantage of CEX and it’s the high risk of hacking.

    Decentralized Exchange (DEX):

    A decentralized exchange (DEX) is a peer-to-peer exchange operating without the supervision of any central authority. With DEX, users have full control over their funds as well as the ability to trade directly from their own wallets, with on-chain settlement. Transactions can be executed on smart contracts and atomic swaps, using what is known as Hashed TimeLock Contracts (HTLCs).

    Below are presented the main benefits of decentralized trading platforms:

    • They offer a very high level of security and are less vulnerable to attacks, because corrupting a peer-to-peer blockchain would require a considerable amount of energy.

    • They are more transparent, since there is no central authority.

    However, there may be less user-friendly than CEX and offer lower liquidity.

    Blockchain.io is a centralized exchange that will provide decentralized features from Q2 2019. Blockchain.io will offer decentralized settlement as an option using advanced “atomic swap” type protocols, enabling users to keep control over their coins.

    Decentralized settlement means that non-custodial trades will be executed as follows: both parties first escrow their coins and then receive their payout in the selected cryptocurrency. When this option has been activated for a trade, the crypto exchange platform does not act as a custodian but rather facilitates and matches trades through its public orderbook.

    We, at Blockchain.io, offer a new generation of exchange platforms, combining the technology of a centralized custodial exchange with a decentralized “trustless” cross-chain “fair exchange” settlement. We have developed features providing the platform with the efficiency of a low-latency, fully-featured centralized exchange that offers quick and liquid trading for exchanging big volumes. Meanwhile, we are also working on decentralized options that enable to send a transaction without the supervision of a third party. The decentralized cross-chain settlement will be built on cross-chain atomic swaps, i.e. cryptographic protocols that allow users to settle transactions across heterogeneous blockchain networks without a third-party and without counter-party risk.

    If you need further information, please contact our support team by email at [email protected]
  • Concept - What do we expect from regulation?
    We are great supporters of the regulatory initiatives taken by the French government and the AMF, whom we meet with frequently. Appropriate regulations will attract greater institutional investments into the ecosystem. Our ICO services also target institutions and large corporations that are asked to be compliant under regulations. We have actively participated to many Blockchain Forums addressing regulation.
    Our goal is to become a trusted trading hub in Europe and beyond.

    Paymium is compliant and has been working with European banks to develop a safe ecosystem.

    If you need further information, please contact our support team by email at [email protected]
  • Concept - Blockchain.io roadmap
    Below are presented the main upcoming features on Blockchain.io:

    Q4 2018:
    • Cryptocurrency Exchange and BCIO listing.

    Q1 2019:
    • Other Tokens listing,
    • ICO Services,
    • Market Making.

    Q3 2019:
    • Periodic Auctions,
    • Decentralized Settlement.

    Q4 2019:
    • Margin Trading.

    Q1 2020:
    • P2P Lending.

    And there are more to come. Since these features are highly technological, dates and times are subject to modification.

    If you need further information, please contact our support team by email at [email protected]
  • Account - How to create an account on Blockchain.io?
    First, visit the login page.
    Fill in your email address and password and confirm your account through the confirmation email we’ve sent you by email (don’t forget to check your spam folder). You will then be able to log in to the platform and start trading.

    If you need further information, please contact our support team by email at [email protected]
  • Account - How to verify my account and upgrade level?
    Deposit and trading aren’t limited on the platform, whereas withdrawals are subject to level limits. When you register on the platform, you are automatically registered as a Level 1 user. To upgrade your level, please visit the “profile” section of your account.

    Below are presented the details for each level:

    Level 1: Direct access to the platform. Trading available for all cryptocurrencies.
    Information required: email address,
    Withdraw limit: 20 000,00 €/day equivalent.

    Level 2: You must set up a 2FA to upgrade your account to level 2.
    Trading is available for all cryptocurrencies with an increased withdraw limit.
    Information required: phone number (we’ll send you an SMS to verify it), proof of identity (passport, ID card, driver’s license) and a selfie. Please choose passport or MRZ IDs.
    Withdraw limit: 500 000,00 €/day equivalent.

    Level 3: You will need to contact us directly via the "support" section or to email us at [email protected]
    Trading is available for all cryptocurrencies with a personalized increased withdraw limit,
    Information required: proof of residence (utility bill received within the last 90 days, banking statement, official document from government institution such as income tax assessment…),
    Withdraw limit: personalized withdrawal/day.

    If you need further information, please contact our support team by email at [email protected]
  • Account - How to verify my professional account and upgrade level?
    Deposit and trading are unlimited on the platform, withdrawals are submitted to level limits. When you register on the platform, you are automatically considered as a Level 1 user.

    Here are the details for each level:

    Level 1: Direct access to the platform. Trading available for all cryptocurrencies.

    Information required:
    - Email address,
    - Withdraw limit: 20 000,00 € /day equivalent.

    Professional level: To upgrade your professional account, you have to send an email to [email protected]
    When your professional account is KYC approved, the trading is available for all cryptocurrencies with a personalized increased withdraw limit,

    Information required:
    - Proof of incorporation (less than 3 months),
    - Signed statutes of your company or company tax return statement. If the company is younger than one year, it can be a business plan or previsional budget,
    - Proof of identity (Passport or National Identity Card) for each company manager (Owners with more than 25% of shares),
    - Selfie from one of the company manager,
    - List of beneficial owners.

    Withdraw limit: personalized withdrawal /day.

    If you need further information, please contact our support team by email at [email protected]
  • Account - I cannot upload my documents
    Please choose your passport to do your KYC. Follow these tips to capture your document in high-quality:

    • Start by capturing the front of the document with the MRZ and then, the whole document.
    • Steady your camera.
    • Keep your capture free from light points.
    • Use a neutral background.
    • Move the camera closer to capture readable information.
    • Do not hold the document in your hand.

    Do not forget to capture the page with your personal information, both sides (front and back) for national IDs for instance. Final step is the selfie. If all documents have been successfully uploaded, please fill in your address to complete your Level 2 KYC.

    If you need further information, please contact our support team by email at [email protected]
  • Account - I cannot log in/«Wrong Credentials» error message
    If possible, try to log into your account from another browser.

    If it still doesn’t work, or if you still get the « Wrong Credentials » error message, please « please go to the login page and click on « Forgot password », then check your inbox for the confirmation email we’ve sent you and follow the different steps included in the email. And then try again to log in to Blockchain.io.

    If you need further information, please contact our support team by email at [email protected]
  • Account - My account is blocked
    Please contact us directly from the email address linked to your account and describe precisely your issue by email at [email protected]
  • Update my account - How to modify my password?
    Please visit the login page and click on « Forgot password? ». Then check your inbox for the confirmation email we have sent you and follow the different steps included in the email.

    Do you need further information? Please contact our support team by email at [email protected] with the email address linked to your account.
  • Update my account - How to modify my email address?
    Apply to the KYC Level 2 process (go to the « profile » section of your account to upgrade your KYC level). If you have any problem with the KYC, please read the following article: « I cannot upload my documents ».

    After approval, please email us at [email protected] from the email address that’s registered on your Blockchain.io account (and cc your new email address).

    Please, also attach a picture of yourself with:
    - Your ID,
    - A piece of paper where it’s written the day’s date and « Blockchain.io ».

    If you do not have access to the email address that’s registered on your Blockchain.io account, please send the following information to [email protected]:

    • The email address registered on your Blockchain.io account,
    • The date of registration on Blockchain.io,
    • The balance of your account (for all the cryptocurrencies holded),
    • The history of your last trades, deposits, and withdrawals,
    • Any other information that would confirm the authenticity of your application (ID, proof of residence…).

    Please, also attach a picture of yourself with:

    • Your ID,
    • A piece of paper where it’s written the day’s date and « Blockchain.io ».

    If you need further information, please contact our support team by email at [email protected]
  • Update my account - How to modify my phone number?
    Please contact us from the email address linked to your account and provide both your old and new phone number by email at [email protected]
  • Update my account - How to modify my mailing address?
    Please contact our support team from the email address linked to your account at [email protected]

    If you’re a Level 3 user, please provide a proof of residence for your new mailing address.
  • Update my account - I do not receive emails from Blockchain.io
    Below are the different steps to follow:

    • First, ensure that you have checked your spam and other folders,
    • If you can’t find our email, you have to whitelist the following email addresses:
    - [email protected]
    - [email protected]
    - [email protected]

    If you did not receive the link to confirm your account, after having whitelisted our email addresses, please go to https://trade.blockchain.io/signin
    Click on « HELP » and « Didn’t receive confirmation instructions ? ». Fill in your email address to receive the confirmation email.

    If you face issues when whitelisting our email addresses, please read our answer to the following question « How to whitelist emails from Blockchain.io? », below in this page.

    If you need further information, please contact our support team by email at [email protected]
  • Update my account - How to whitelist emails from Blockchain.io?
    From Outlook:

    1. First, you have to log in to your Outlook mailbox. Go to the settings and click on the « Contacts » link.

    2. Now go to the « Safe Mailing List ». From this section, you will have to add the following 3 email addresses:
    [email protected]
    [email protected]
    [email protected]

    3. Then, click on the « Save » button to save your settings.

    If you did not receive the link to confirm your account, after having whitelisted our email addresses, please go to https://trade.blockchain.io/signin
    Click on « HELP » and « Didn’t receive confirmation instructions ? ». Fill in your email address to receive the confirmation email.

    From Gmail:

    1. First, you have to log in to your Gmail mailbox.

    2. Go to the settings, to the « filters and blocked addresses » section.

    3. Then click on « Create a new filter » and indicate the email addresses that you want to modify.

    4. Now you have to approve the following 3 email addresses:
    [email protected]
    [email protected]
    [email protected]

    5. Lastly, click on « Create filter with this search ».

    6. Once the filter has been created, please check the box « never send it to spam ».

    7. Finally, click on « Create filter » to save your settings.

    If you did not receive the link to confirm your account, after having whitelisted our email addresses, please go to https://trade.blockchain.io/signin
    Click on « HELP » and « Didn’t receive confirmation instructions ? ». Fill in your email address to receive the confirmation email.

    From Yahoo:

    1. First, you have to log in to your Yahoo mailbox.

    2. Go to the settings, to the « More settings » section.

    3. Then click on « Filters », and on « Add new filters ».

    4. You have to give a title to your filter. In the section « from », please select « contains », and then, add the following 3 email addresses:
    [email protected]
    [email protected]
    [email protected]

    5. Lastly, click on « Save » to save your settings.

    If you did not receive the link to confirm your account, after having whitelisted our email addresses, please go to https://trade.blockchain.io/signin
    Click on « HELP » and « Didn’t receive confirmation instructions ? ». Fill in your email address to receive the confirmation email.

    From Protonmail:

    1. First, you have to log in to your Protonmail mailbox.

    2. Go to the settings, then to the « filters » section.

    3. Under the whitelist section, click on « Add new filter » and add the following 3 email addresses:
    [email protected]
    [email protected]
    [email protected]

    4. Lastly, click on « Save » to confirm whitelisting.

    If you did not receive the link to confirm your account, after having whitelisted our email addresses, please go to https://trade.blockchain.io/signin
    Click on « HELP » and « Didn’t receive confirmation instructions ? ». Fill in your email address to receive the confirmation email.

    If you need further information, please contact our support team by email at [email protected]
  • 2-FA - What is 2-FA and how to enable it?
    Google Authenticator:

    Google Authenticator is a software token that implements a 2-step verification service to maximize the security of your account. We strongly recommend our customers to use this solution. If possible, we advise you to also set up a 2FA on your mailbox.

    How to set up Google Authenticator?
    Firstly, download the app and follow the different steps to set it up on your device. You can find additional information here.

    You may need to disable your adblocker for those steps. To enable your 2FA on Blockchain.io, please:

    1. Go to your « profile » section.

    2. Then, click on « Enable ».

    3. In the « Two-factor Authentication » section:
    Scan the QR code displayed on the screen with your mobile phone or manually enter the code (you can find it right below the QR Code). Please don’t forget to save this code as it will also be your back up code.

    4. When your 2FA has been recognized by the app, fill the code displayed on your screen in the « 6-digit Google Authenticator code » section and confirm by clicking on « Submit ».

    If you need further information, please contact our support team by email at [email protected]
  • 2-FA - I cannot login with my 2FA.
    If you cannot log in to your account because of your 2FA, please send an email to [email protected] from the email address that’s registered on your account, including the following information:

    • The email address registered on your Blockchain.io account,
    • The date of registration on Blockchain.io,
    • The balance of your account (for all the cryptocurrencies holded),
    • The history of your last trades, deposits, and withdrawals,
    • Any other information that would confirm the authenticity of your application (ID, proof of residence…).

    Please, also attach a picture of yourself with:
    - Your ID,
    - A piece of paper where it’s written the day’s date and « Blockchain.io ».

    If you need further information, please contact our support team by email at [email protected]
  • 2-FA - I have the error message "This account is protected with 2FA. Please provide a required code »
    In most of cases, synchronizing your Google Authenticator application solves this problem. Here are the different steps to follow:

    - If you are on Android:
    Please go to your Google Authenticator application. At the top right, please click on the options and "Settings". Please click on "Time correction for codes » and « Sync now ». Please fill in your 2FA again.

    - If you are on iOS:
    Please go the the settings of your phone, select "General" and "Date and hour". In this section, please click on "Set automatically".
    If it has already been selected, unselect and reactivate it. Please fill in your 2FA again.

    If you need further information, please contact our support team by email at [email protected]
  • 2-FA - I change my phone. How to set up my 2FA on my new device?
    Do not hesitate to visit Google Support website for detailed instructions. You can find it here.

    If you need further information, please contact our support team by email at [email protected]
  • 2-FA - How to disable 2FA?
    To disable your 2FA, you first need to log in to your account and to go to your profile page.

    At the top left of the page, below your email and password, you can disable your 2FA by clicking on « Disable ». You will have to enter your current code to deactivate it. You may need to disable your adblocker for those steps.

    If you need further information, please contact our support team by email at [email protected]
  • Trading - Buy with a market or limit order.
    Once your Blockchain.io account has been supplied with BTC, you will be able to buy other cryptocurrencies. To do this, you have two options available:

    • Market orders: to instantly buy a cryptocurrency. You can access from your dashboard, in the « buy/sell » section or in the « advanced trading » section.

    • Limit orders: to place a buy order, which has a processing time. You can access it from the « advanced trading » section.

    How to Buy with a Market order:

    Buying with a market order means that you buy at market prices.

    1. You have to click on the « BUY/SELL » section, and then click on « BUY » and select the cryptocurrency.

    2. After choosing your payment method, select the amount of cryptocurrency you’d like to buy and click on « EXCHANGE » to confirm the transaction.

    3. On the right side of the screen will be displayed the amount you’ve requested, the fees charged, and the total amount of cryptocurrencies that you will receive.
    Please note that both quantities and average prices are estimates, given that the order book operates in real-time.

    4. Click on the « Exchange » button. The BTC amount that you’ve offered will be traded against the chosen cryptocurrency, and your account will be instantly supplied with it.
    Market buy orders are permanent and can’t be cancelled.

    Now, if you check your wallets, you’ll see the amount of cryptocurrencies that you’ve received.

    How to Buy with a Limit order:

    In the « advanced trading » section, fill out the « insert new order » section with the maximum price you are willing to pay per bitcoin.

    If the price is too low, there might be no seller matching your purchase order. Your order will not be executed immediately. In that case, you will have to wait until sellers lower their prices or to revise your order with a higher limit price.

    If it’s higher than the price requested by a seller, the seller's offer will be accepted, and your order will be partially or fully executed.

    Your order will be partially executed if the amount tendered by the seller is lower than the amount specified in your order.

    However, your order can be executed by combining several sellers' offers.

    If a limit trade order is pending execution, you can cancel it in the « open orders » section, at any time. If it has been partially filled, you can still cancel the remaining amount.

    In a nutshell, there are three possible situations:

    - An active limit buy order, but that has not been executed: the price limit you set was too low to match an offer. You’ll have to wait or to revise your order,

    - A limit buy order that has been partially executed: the upper price limit you set has been matched by one or more sellers, but the amount traded was lower than the amount specified in your order. You’ll have to wait or to revise the amount of your order that has not been traded,

    - A limit buy order that has been fully executed: the price limit you set was higher or equal to the lowest prices offered by sellers and the amount traded was sufficient to fully satisfy your buy order.

    If you need further information, please contact our support team by email at [email protected]
  • Trading - Sell with a market or limit order.
    You have two options available:

    Market orders: to instantly sell a crypto-currency. You can access it from your dashboard, in the « buy/sell » section or in the « advanced trading » section.

    Limit orders: to place a sell order, which has a processing time. You can access it from the « advanced trading » section.

    Selling with a market order means that you sell at market prices.

    1.You have to click on the « BUY/SELL » section, and then click on « SELL » and select the cryptocurrency.

    2. After choosing your payment method, select the amount of cryptocurrency you’d like to sell and click on « EXCHANGE » to confirm the transaction.
    On the right side of the screen will be displayed the amount to sell, the fees charged, and the total amount of BTC that you will receive.

    Please note that both quantities and average prices are estimates, given that the order book operates in real-time.

    3. Click on the « Exchange » button. The amount of cryptocurrency that you’ve offered will be traded against BTC, and your account will be instantly supplied with it.

    Market sell orders are permanent and can’t be cancelled.

    Now, if you check your wallets, you’ll see the amount of BTC that you’ve received.

    How to Sell with a Limit order:

    In the « advanced trading » section, fill out the « insert new order » section with the minimum price you are willing to sell.

    If the price is too high, there might be no buyer matching your selling order. Your order will not be executed immediately.
    In that case, you will have to wait until buyers lower their prices or to revise your order with a lower limit price. If it’s lower than the price requested by a buyer, the buyer’s offer will be accepted, and your order will be partially or fully executed.

    Your order will be partially executed if the amount tendered by the buyer is lower than the amount specified in your order.

    However, your order can be executed by combining several sellers' offers.
    If a limit trade order is pending execution, you can cancel it in the « open orders » section, at any time. If it has been partially filled, you can still cancel the remaining amount.

    In a nutshell, there are three possible situations:

    - An active limit sell order, but that has not been executed: the price limit you set was too high to match an offer. You’ll have to wait or to revise your order.

    - A limit sell order that has been partially executed: the lower price limit you set has been matched by one or more buyers, but the amount traded was lower than the amount specified in your order. You’ll have to wait or to revise the amount of your order that has not been traded.

    - A limit sell order that has been fully executed: the price limit you set was lower or equal to the highest prices offered by buyers and the amount traded was sufficient to fully satisfy your buy order.

    If you need further information, please contact our support team by email at [email protected]
  • Trading - How to cancel an order?
    Market orders are instantly executed and are therefore permanent and cannot be cancelled.

    If a limit trade order is pending execution, you can cancel it in the « open orders » section, at any time. If it has been partially filled, you can still cancel the remaining amount. It is not possible to cancel an order that has been executed.

    If you wish to cancel an order that has not been executed, you can log in to your account and go to the « OPEN ORDERS » section. Click on « Cancel » to confirm the cancellation of your order.

    If you need further information, please contact our support team by email at [email protected]
  • Trading - What is the « order » section?
    The « order » section shows your current orders, that include open and partially filled orders.

    Please note that market orders will be instantly executed and are therefore permanent and cannot be cancelled.

    If a limit trade order is pending execution, you can cancel it in the « open orders » section, at any time. If it has been partially filled, you can still cancel the remaining amount. It is not possible to cancel an order that has been executed.

    If you need further information, please contact our support team by email at [email protected]
  • Trading - How can I access my account history?
    Go to the « HISTORY » section of your account which displays:
    • Your deposit history,
    • Your withdrawal history,
    • And your trade history, including all your trades.

    If you need further information, please contact our support team by email at [email protected]
  • Trading - Is there an API available?
    You can access our API here: https://github.com/bcio/api-documentation

    If you need further information, please contact our support team by email at [email protected]
  • Deposit/Withdrawal - How to deposit cryptocurrencies?
    Firstly, log in to your account. Click on « WALLETS », then click on « DEPOSIT » (you might have to refresh the page). To deposit cryptocurrencies, you can either scan the QR code with your mobile phone, or copy/paste the wallet address.

    If you need further information, please contact our support team by email at [email protected]
  • Deposit/Withdrawal - How do I withdraw cryptocurrencies?
    Firstly, log in to your account. Click on « WALLETS », then click on « WITHDRAW » (you might have to refresh the page). Then fill in the destination address and the amount. Click on « WITHDRAW » to confirm your withdrawal. You will receive a confirmation email. Lastly, you’ll have to confirm your withdrawal by clicking on the link received by email.

    If you need further information, please contact our support team by email at [email protected]
  • Deposit/Withdrawal - I have withdrawn to a wrong address.
    You can still cancel a withdrawal if you haven’t confirmed the withdrawal via the confirmation link received by email. The withdrawal cannot be canceled after it’s been validated via the confirmation email, since it will have started on the blockchain. There is nothing we can do at this stage.
    If you’ve withdrawn to another exchange or a wallet, please contact their support team. We cannot recover the coins if you have sent them to the wrong address. If the destination wallet does exist, and if you know its owner, we advise you to contact him to find a solution.

    If you need further information, please contact our support team by email at [email protected]
  • Deposit/Withdrawal - I have deposited my cryptocurrency to a wrong address.
    Since we haven’t received the coins, we cannot recover them if you have sent them to the wrong address. If the destination wallet does exist, and if you know its owner, we advise you to contact him to find a solution.

    If you need further information, please contact our support team by email at [email protected]
  • Deposit/Withdrawal - I have deposited a wrong coin.
    If you have deposited the wrong coin to your address, please understand that it will be very difficult to recover them. Unfortunately, we do not provide a recovery service at this time.
    However, you can send a message to [email protected], explaining precisely your situation.

    If you need further information, please contact our support team by email at [email protected]
  • Deposit/Withdrawal - I have not received my deposit.
    If your transfer has been made from another exchange, please check if it has been executed. You can check it on a Blockchain Explorer. If your transfer has been completed and yet, nothing is visible on your account, please contact us at [email protected]
  • Deposit/Withdrawal - I have not received my withdrawal.
    Please check that you have validated the withdrawal by clicking on the link received by email. If you have not received the email, we advise you to read the following article « I do not receive emails from Blockchain.io ».

    Then, you can check if your transfer has been executed on a blockchain explorer. If it has been completed and yet, you have not received the cryptocurrency on your destination wallet, we advise you to contact the support team of the destination wallet.

    If you need further information, please contact our support team by email at [email protected]
  • Deposit/Withdrawal - My transfer has not been executed.
    Please check that you have validated the transfer by clicking on the link received by email. If you have not received the email, we advise you to read the following article « I do not receive emails from Blockchain.io ».

    If you have validated the transfer by clicking on the link received by email, and yet, the transfer has not been executed, please contact us at [email protected]
  • Deposit/Withdrawal - I cannot withdraw BCH.
    Please verify that you use a « Legacy Address » to withdraw BCH. You will be able to verify it by following this link.

    Please fill your BCH address in the explorer. You will see different addresses for the same wallet. Please use the legacy address format to send BCH from Blockchain.io

    Payment fees: do not send BTC to this address. This will only work with BCH.

    If you need further information, please contact our support team by email at [email protected]
  • Deposit/Withdrawal - What is the « XRP Deposit Tag » for Ripple?
    Most of Ripple (XRP) wallets display the following 2 fields:
    • The wallet address,
    • The destination tag.

    To find your « XRP Deposit Tag » (destination tag) for Blockchain.io, go to the « WALLETS » section, click on the XRP wallet and then, on « DEPOSIT ». Your destination tag can be found under « XRP Deposit Tag ». Both tag and address are required to successfully deposit XRP on Blockchain.io.

    If you want to withdraw XRP from Blockchain.io, go to the « WALLETS » section, click on the XRP wallet and then, on « WITHDRAW ». You will have to fill in both tag and address to successfully withdraw XRP from Blockchain.io.

    If you need further information, please contact our support team by email at [email protected]
  • Deposit/Withdrawal - How do I cancel a transfer?
    You can still cancel a transfer if you haven’t confirmed the transfer via the confirmation link received by email. The transfer cannot be canceled after it’s been validated via the confirmation email, since it will have started on the blockchain. There is nothing we can do at this stage.

    If you need further information, please contact our support team by email at [email protected]
  • ICOs & Development - What ICO services do we provide?
    Blockchain.io provides ICO campaign support and token listing services to assist entrepreneurs in planning and executing their fundraising campaigns.
    Following ICO campaigns, Blockchain.io will ensure that newly created tokens are listed on our exchange to provide liquidity to investors and traders.

    In addition, Blockchain.io will create token liquidity through:
    - Market making using Blockchain.io’s inventory,
    - Incentive program for Paymium users.

    ICO projects will be preselected by Blockchain.io staff and submitted to the vote of the community. Eligibility criteria for projects will be:
    - Legal compliance of the project,
    - Team experience and background,
    - Company track-record,
    - Market potential,
    - Quality of the project,
    - Existence of a viable product,
    - Benefits of the token,
    - Definition of a hard cap.

    Blockchain.io can organize the entire operation on behalf of the client or perform part of it and charges fees in the form of a percentage of the funds raised.

    If you need further information, please contact our support team by email at [email protected]
  • ICOs & Development - What are our positions on fork and airdrops?
    Each cryptocurrency has its own specificities. We will remain transparent and inform our users about the possibility of delivering the coin association with the hard fork. Do not hesitate to contact us at [email protected] to get additional information on the fork concerned.
  • ICOs & Development - How to list a token on Blockchain.io?
    Different classes of token assets will be listed on our platform.

    
To list a token, you can contact us by email at [email protected]. We kindly ask you to provide as much information as possible. Below is listed what we need first and foremost:
    • Your email address,
    • Your phone number,
    • Your Telegram handle,
    • The project Name,
    • The project website,
    • The Blockchain used (Ethereum, waves…) and the Coin/Token type (ERC20, ERC223…),
    • Your Token name and symbol (eg. Ethereum: ETH),
    • The existing and maximum supply of your coin,
    • The transaction fees,
    • The description of the project,
    • The Target date of token distribution,
    • If you’ve already raised money (ICO, equity, crowdfunding…), how much have you and what was the token repartition,
    • The number of participants during the fundraising,
    • The C-Level LinkedIn profiles (CEO, CTO, CMO…),
    • Your lawyers (or law firm),
    • Your Github link,
    • Your social media (Twitter, Telegram, Facebook, etc…),
    • Your Whitepaper (must be .pdf) and extra documents of your choice (yellowpaper, pitch deck, one pager, etc…).

  • ICOs & Development - What is the process to get a token approved on Blockchain.io?
    After reception of the requested information (refer to the following article: « How to list a token on Blockchain.io »), there will be 4 main steps to list a token:


    1. Token Selection: Tokens that have been preselected by Blockchain.io team will be submitted to the vote of BCIO community. We will select at least 20 tokens,

    2. Vote of the Community: Eligible tokens for listing will be submitted to the vote of the community. Below is presented the vote procedure:
    • 1 session will occur at least every 3 months,
    • Votes are cast by BCIO Token holders,
    • Votes won’t be visible before the session has ended,
    • Voters can assign their voting points to as many tokens as they want to,
    • Tokens that will reach at least 5,000,000 points at the end of the vote session will be reviewed by Blockchain.io research team.

    3. Token Review: Following the vote session, at least 5 tokens will be vetted by Blockchain.io research team on the following aspects:
    • Sustainability and Philosophy,
    • Technology and Protocols,
    • Business and Marketing.

    4. Listing: Tokens that have been approved by Blockchain.io research team will be listed on the exchange.

    Our primary goal is to mitigate the risk for investors and traders at a time when ICOs can easily reach several million dollars in fiat currencies, and when it is especially hard to distinguish trustworthy projects from scams.
  • ICOs & Development - How many participation points do I hold for token listing?
    Participation points will be calculated for each user, before every session of Token Listing. More details to come. Would you have any requests, feel free to email us at [email protected]

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