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Coinbase online payment system

Coinbase
https://coinbase.com/

Updated on October 11, 2012
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General Information

 

 

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Instant Payments

Payments arrive at the speed of an email (just a few seconds) and are confirmed within the hour. No more waiting three business days for checks.

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Low Transaction Fees

Coinbase charges just 0.5% when you buy or sell bitcoin via bank account transfer. After that all bitcoin-to-bitcoin transactions are free.

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Pay By Phone

Our website works great on modern smartphones (iPhone, Android, etc). Just visit coinbase.com from your mobile browser.

 

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Simple Transfers

Use your bank account to purchase bitcoins. Transactions are processed within two to three business days. (coming soon)

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Merchant Tools

Easily create "buy now" or donate buttons. We also offer full shopping cart integration. (coming soon)

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Widespread Adoption

About $2 million a day (USD) is already being transacted in bitcoin. It's quickly becoming an international currency.

Currencies

Bitcoin

Countries of use

USA

Users

private and business

Fees

0.5% when you buy or sell bitcoin via bank account transfer

Recent news

Posted on October 11, 2018
ZRX is launching on Coinbase Pro

ZRX is now available to trade on Coinbase Pro (Updated)

ZRX trading on Coinbase Pro is now fully live. ZRX–USD, ZRX–BTC and ZRX–EUR order books are now in full trading mode. Limit, market and stop orders are all now available.

As of 10am PT on Thursday, October 11, we are now accepting deposits for ZRX on Coinbase Pro! We will accept deposits for at least 12 hours prior to enabling trading. Once sufficient liquidity is established, trading will begin on the ZRX/USD, ZRX/EUR and ZRX/BTC order books. ZRX trading will be accessible for users in most jurisdictions, but will not initially be available for residents of the state of New York.

Please also note that ZRX is not yet available through the coinbase.com website and in the Coinbase iOS and Android apps. We will make a separate announcement when that occurs.

The Stages of the ZRX Launch

In more detail, there will be four stages to the launch as outlined below. We will follow each of these stages independently for each new order book: ZRX/USD, ZRX/EUR and ZRX/BTC (note that at this time, we will not offer trading on the ZRX/GBP pair). If at any point one of the new order books does not meet our assessment for a healthy and orderly market, we may keep the book in one state for a longer period of time, or suspend trading as per our Trading Rules.

We will send tweets from our Coinbase Pro Twitter account as each order book moves through the following phases:

  1. T̶r̶a̶n̶s̶f̶e̶r̶-̶o̶n̶l̶y̶.̶ ̶S̶t̶a̶r̶t̶i̶n̶g̶ ̶a̶t̶ ̶1̶0̶a̶m̶ ̶P̶T̶ ̶o̶n̶ ̶T̶h̶u̶r̶s̶d̶a̶y̶ ̶O̶c̶t̶o̶b̶e̶r̶ ̶1̶1̶,̶ ̶c̶u̶s̶t̶o̶m̶e̶r̶s̶ ̶w̶i̶l̶l̶ ̶b̶e̶ ̶a̶b̶l̶e̶ ̶t̶o̶ ̶t̶r̶a̶n̶s̶f̶e̶r̶ ̶Z̶R̶X̶ ̶i̶n̶t̶o̶ ̶t̶h̶e̶i̶r̶ ̶C̶o̶i̶n̶b̶a̶s̶e̶ ̶P̶r̶o̶ ̶a̶c̶c̶o̶u̶n̶t̶.̶ ̶C̶u̶s̶t̶o̶m̶e̶r̶s̶ ̶w̶i̶l̶l̶ ̶n̶o̶t̶ ̶y̶e̶t̶ ̶b̶e̶ ̶a̶b̶l̶e̶ ̶t̶o̶ ̶p̶l̶a̶c̶e̶ ̶o̶r̶d̶e̶r̶s̶,̶ ̶a̶n̶d̶ ̶n̶o̶ ̶o̶r̶d̶e̶r̶s̶ ̶w̶i̶l̶l̶ ̶b̶e̶ ̶f̶i̶l̶l̶e̶d̶ ̶o̶n̶ ̶t̶h̶e̶s̶e̶ ̶o̶r̶d̶e̶r̶ ̶b̶o̶o̶k̶s̶.̶ ̶O̶r̶d̶e̶r̶ ̶b̶o̶o̶k̶s̶ ̶w̶i̶l̶l̶ ̶b̶e̶ ̶i̶n̶ ̶t̶r̶a̶n̶s̶f̶e̶r̶-̶o̶n̶l̶y̶ ̶m̶o̶d̶e̶ ̶f̶o̶r̶ ̶a̶t̶ ̶l̶e̶a̶s̶t̶ ̶1̶2̶ ̶h̶o̶u̶r̶s̶.̶
  2. ̶P̶o̶s̶t̶-̶o̶n̶l̶y̶.̶ ̶I̶n̶ ̶t̶h̶e̶ ̶s̶e̶c̶o̶n̶d̶ ̶s̶t̶a̶g̶e̶,̶ ̶c̶u̶s̶t̶o̶m̶e̶r̶s̶ ̶c̶a̶n̶ ̶p̶o̶s̶t̶ ̶l̶i̶m̶i̶t̶ ̶o̶r̶d̶e̶r̶s̶ ̶b̶u̶t̶ ̶t̶h̶e̶r̶e̶ ̶w̶i̶l̶l̶ ̶b̶e̶ ̶n̶o̶ ̶m̶a̶t̶c̶h̶e̶s̶ ̶(̶c̶o̶m̶p̶l̶e̶t̶e̶d̶ ̶o̶r̶d̶e̶r̶s̶)̶.̶ ̶O̶r̶d̶e̶r̶ ̶b̶o̶o̶k̶s̶ ̶w̶i̶l̶l̶ ̶b̶e̶ ̶i̶n̶ ̶p̶o̶s̶t̶-̶o̶n̶l̶y̶ ̶m̶o̶d̶e̶ ̶f̶o̶r̶ ̶a̶ ̶m̶i̶n̶i̶m̶u̶m̶ ̶o̶f̶ ̶o̶n̶e̶ ̶(̶1̶)̶ ̶m̶i̶n̶u̶t̶e̶.̶ ̶T̶h̶i̶s̶ ̶m̶a̶r̶k̶e̶t̶ ̶s̶t̶a̶t̶e̶ ̶m̶a̶y̶ ̶b̶e̶ ̶k̶e̶p̶t̶ ̶s̶h̶o̶r̶t̶ ̶o̶r̶ ̶e̶x̶t̶e̶n̶d̶e̶d̶ ̶t̶o̶ ̶i̶n̶c̶r̶e̶a̶s̶e̶ ̶m̶a̶r̶k̶e̶t̶ ̶h̶e̶a̶l̶t̶h̶ ̶d̶u̶r̶i̶n̶g̶ ̶l̶a̶u̶n̶c̶h̶.̶
  3. ̶L̶i̶m̶i̶t̶-̶o̶n̶l̶y̶.̶ ̶I̶n̶ ̶t̶h̶e̶ ̶t̶h̶i̶r̶d̶ ̶s̶t̶a̶g̶e̶,̶ ̶l̶i̶m̶i̶t̶ ̶o̶r̶d̶e̶r̶s̶ ̶w̶i̶l̶l̶ ̶s̶t̶a̶r̶t̶ ̶m̶a̶t̶c̶h̶i̶n̶g̶ ̶b̶u̶t̶ ̶c̶u̶s̶t̶o̶m̶e̶r̶s̶ ̶w̶i̶l̶l̶ ̶b̶e̶ ̶u̶n̶a̶b̶l̶e̶ ̶t̶o̶ ̶s̶u̶b̶m̶i̶t̶ ̶m̶a̶r̶k̶e̶t̶ ̶o̶r̶d̶e̶r̶s̶.̶ ̶O̶r̶d̶e̶r̶ ̶b̶o̶o̶k̶s̶ ̶w̶i̶l̶l̶ ̶b̶e̶ ̶i̶n̶ ̶l̶i̶m̶i̶t̶-̶o̶n̶l̶y̶ ̶m̶o̶d̶e̶ ̶f̶o̶r̶ ̶a̶ ̶m̶i̶n̶i̶m̶u̶m̶ ̶o̶f̶ ̶1̶0̶ ̶m̶i̶n̶u̶t̶e̶s̶.̶
  4. Full trading. In the final stage, full trading services will be available, including limit, market, and stop orders.

One of the most common requests we receive from customers is to be able to trade more assets on our platform. With the recent announcement of our new listing process, our customers can expect us to list most assets over time that meet our standards.

You can sign up for a Coinbase Pro account here to start trading.

Update: Price granularity is restricted to 0.01 on the fiat books (USD/EUR). Because of the low per token price of the ZRX token, traders wishing to execute orders with greater precision may use the ZRX-BTC order book, which offers precision of 0.00000001 BTC.


ZRX is launching on Coinbase Pro was originally published in The Coinbase Blog on Medium, where people are continuing the conversation by highlighting and responding to this story.

Read more on Coinbase
Posted on October 2, 2018
What we accomplished at Coinbase in Q3 2018

This week, I sent a note to the Coinbase team about what we accomplished in Q3. I’m sharing it here with our customers and the crypto community more broadly to help provide transparency into our operations.

***

Dear Team,

At the end of the last quarter, I sent out an email reflecting on all we’d been able to accomplish in a single three-month period. Given how fast we move and just how much we accomplish, I’m finding this a useful exercise and a good opportunity to pause, reflect, and celebrate our wins.

You heard some of this last week at our All Hands meeting, but I want to share it in one digestible email that you (and I) will be able to read thoughtfully, reflect on, and use to map our journey over time.

WE HIRED:

In Q3, we continued to bring on amazing people. We used many of these hires as opportunities to be thoughtful about our operating structure, and how to help our teams function more efficiently as we scale. In Q3, we added:

WE INVESTED:

The crypto space continues to be full of fascinating startups, and this quarter, we invested in nine more companies that have great potential, including: Horizon Games, Coinmine and Public Market.

WE ACQUIRED:

This quarter, our acquisitions focused on teams that would bring depth, experience, and innovation to the teams and products already within Coinbase. We brought on the Distributed Systems team, who joined our Identity group, officially closed the Keystone acquisition, and are in conversations with a number of other high-potential teams.

WE LAUNCHED:

In Q3, we focused on launching features and policies that our customers want most, helping make Coinbase simple and easy to use, and positioning Coinbase as the destination for the next 100 million people who want to access, own, and use cryptocurrency. In Q3, we added:

  • Bundles: A simple way to invest in a basket of crypto assets with just a few clicks;
  • Increased limits for most customers : They can now buy and sell immediately, and most had their trading limits increased to $25,000 per day;
  • New asset listing process: A new asset strategy that will radically accelerate our ability to add new assets;
  • Coinbase Wallet: Toshi became Coinbase Wallet, as part of our work to help define the future of the decentralized web;
  • Relaunched Paradex internationally: With support for 21 tokens on the decentralized trading platform, we are actively building and experimenting at the forefront of crypto; and
  • Our New York office: In September, we officially opened our new office in New York’s Union Square.

WE ADDED:

Adding assets, support for more local currencies, new geographies, and big clients are some of the most important things we can do to help get more people involved in crypto and on board with Coinbase products. This quarter, we:

WE PUBLISHED:

This summer, we put a lot of great thinking and writing out into the world, building our educational authority around crypto, helping existing and new customers understand even more about the space. We published our first-ever research-based Coinbase Report on the rise of crypto in higher education. We produced our first video for the crypto curious, helping the world understand what bitcoin is. And Connie Yang wrote a great essay on why design is the killer app for crypto.

WE HACKED:

While Coinbase has hosted a hackathon every year, this year was our biggest yet. Vision Hack 2028 took place at the end of August — a five day, all-company hackathon, with the goal to build ideas that would reshape what an open financial system could look like in 10 years. Over 150 ideas were submitted from people and teams from throughout the company.

RECOGNITION:

Lastly, we are incredibly grateful to have received external validation for our efforts and for some of our amazing colleagues. Ultimately, these accolades reflect the efforts of every single employee, so thank you for making Coinbase such an amazing place to work. Top highlights include:

  • LinkedIn ranked Coinbase as the #3 most sought-after startup in the U.S.
  • Fortune’s The Ledger included FOUR members of the Coinbase leadership team on its 40 Under 40 list
  • The Root recognized Tariq Meyers as one of the 100 Most Influential African Americans in 2018
  • Fast Company introduced the women who are making sure blockchain is inclusive, including Emilie Choi
  • Inc. highlighted the top benefit millennials want from employers, provided by Coinbase

SO IN CONCLUSION…

Our business is cyclical, and it’s crucial that we continue pushing hard to ship new features, fix what’s not working, and make the customer experience better, whether the crypto market is on fire or in a slower part of the cycle. We did that well this quarter, and in Q4, we’ll need to double down — and stay humble, scrappy, and focused — to do even more.

Before I close, I want to express my gratitude for your hard work, your thoughtfulness, and all of the conversations we’ve had over the last quarter. I’m proud to be on this journey with you.

Brian


What we accomplished at Coinbase in Q3 2018 was originally published in The Coinbase Blog on Medium, where people are continuing the conversation by highlighting and responding to this story.

Read more on Coinbase
Posted on October 2, 2018
Improving Bitcoin Reliability through Child Pays for Parent

By Brock Miller & Eli Haims

At Coinbase we strive to be the most trusted and easiest to use cryptocurrency company in the world. As part of being the easiest to use, one of our goals is to provide a great user experience for customers who are sending and receiving cryptocurrency such as bitcoin. Sending cryptocurrency today can be difficult; transaction fees are volatile and unpredictable, which can result in significant swings in the amount of time it takes for a transaction to confirm. As a result of this, we’ve had many days here at Coinbase where some users’ transactions would get stuck due to fee rate spikes and general Bitcoin network congestion (which peaked in December 2017). First and foremost, this gives our users a frustrating experience because it takes longer than expected for their transactions to arrive. Second, it means that engineers at Coinbase are getting paged frequently to investigate a situation that is mostly out of their control. To address these challenges, we leaned on a well-known procedure which uses economic incentives enabled by the Bitcoin protocol for improving confirmation time of transactions: Child Pays for Parent (CPFP), and we’ve implemented this at Coinbase scale, sometimes using it to rescue thousands of transactions in a single day.

How it Works: Bitcoin Fees

When a customer wants to send some bitcoin to another address on the network, there are two major factors that we try to balance:

  1. The transaction fee, or how much the customer pays to have their transaction included in a block, and
  2. The speed at which that transaction gets included in a block.

Unlike a credit card processor that generally specifies fees as a percentage of a charge, Bitcoin operates with a fee market. This is somewhat analogous to a pay-as-bid auction, which is structured as follows: potential buyers will submit bids at different prices, and the auctioneer will select the highest bidders as the winners. Similarly, users select a transaction fee when sending a transaction to the network, and miners will select the set of transactions with the highest fees to include in a block. Typically, a user will decide how long they are willing to wait for their transaction to get included in a block, and will either ask a node or some third-party software for an appropriate fee at the time the fee estimate request is made. Between the time this transaction is broadcast and the next block is mined, there are likely to be many other people also broadcasting transactions. If they are also all trying to get their transaction in the next couple of blocks, the required fee rate will increase with each transaction. By the time this block is mined, our estimate may be too low relative to all available transactions for miners to select it.

Figure 1. Historic Daily Average Transaction Fees in Satoshis per Byte (source: https://bitcoinfees.info/)
Figure 2. Average Recommended 2-Block Transaction Fees in Satoshis per Byte for September 18–25 2018

The Problem

To illustrate this fact, let’s look at an example. Consider two Coinbase customers, Alice and Bob, both of whom would like to send some bitcoin to pay for a transaction on their way to work in the morning. Alice submits her transaction at a time when estimated fees are 5 satoshis/byte, a relatively low fee in today’s market. Seconds later, the network suddenly becomes very busy, and thousands of transactions appear in the mempool. Bob then submits his transaction with a fee of 25 satoshis/byte, where the fee is much higher than Alice’s because of the network congestion. Seconds later a block is mined; Bob’s transaction is included because of its high fee, but Alice’s remains pending. The congestion continues, and transactions are submitted with ever-growing fees. Alice’s transaction is now “stuck.” The funds won’t arrive at their destination, and she therefore can’t do anything with the funds, until the flood recedes and the fee rate drops.

A Solution

So, what can we do about Alice’s transaction? Is it stuck indefinitely, or can we help to incentivize miners to confirm her transaction? It turns out we can help Alice in this situation using a strategy that relies on economic incentives called Child Pays for Parent, or CPFP.

Before explaining CPFP, let’s first briefly look at how Bitcoin transactions are structured. Simplified, a Bitcoin transaction is nothing more than a series of inputs and outputs, where inputs represent some value (in bitcoin) that is being “spent” by the sender. When a recipient wants to then spend the bitcoin that they received, one or more of the outputs that they control will become an input to a new transaction. This new transaction is then a “child” of the previous “parent” transaction. Additionally, a typical Bitcoin transaction includes what’s known as a change output. This change output is generally sent back to the original sender so that they can use it in a future transaction. This concept is no different than if you were to pay for a $5 coffee with a $10 bill and receive $5 in change from the cashier. When you are spending inputs with a fixed amount (in bitcoin or in dollars), there is generally change that you collect from the transaction. This change output is what we will utilize to enable CPFP.

Figure 3. Example Diagram showing Parent and Child Transactions with Change Outputs

Now that we understand what a child and a parent transaction are, let’s look at how CPFP works. Remember, miners always choose which transactions they want to include in a block based on relative rewards. The Bitcoin protocol does not allow for a child transaction to be included in a block before its parent transactions have been added — it must be included in either the same or a later block because later transactions depend on earlier ones.

Building on that fact, whenever there are dependent transactions pending at the same time (parents and children), Bitcoin mining software will actually look at those transactions as a group and compute their corresponding fee rate over the entire set, rather than individually. This makes sense for miners to do so, since those transactions are really only valid when confirmed together. Since miners compute the fee rate over this group of dependent transactions, we can submit a child transaction (spending change outputs that we control) that has a higher fee rate than its parent(s), thus boosting the overall fee rate of the group. This is exactly how CPFP works. Essentially we are making a more profitable transaction available to miners, but the structure of this transaction requires the miners to also pick up some less profitable transactions. To take advantage of this and give our customers a better experience, we built a feature that automates this process of bidding up a stuck transaction.

How We Are Using It

Over the past few months, we’ve rolled out this feature in an automated fashion to all customers who are sending bitcoin on our platform. If a customer’s transaction happens to be stuck pending for at least 4 blocks, we’ll broadcast and pay for a child transaction at a sufficient fee rate in order to rescue the parent transaction (we actually batch these so that we can rescue multiple parents with one child). This is done without any interaction from the end user, and we’ve seen really positive results thus far with its use. Over the past few months, we have saved thousands of user transactions that our customers would have otherwise not seen for many hours. We love making our customers happy, and are excited that this feature has enabled us to bring more consistent reliability to their bitcoin transactions while ensuring that we are being good participants of the network.

The CPFP feature is a great example of our daily work on crypto technologies as well as the interesting challenges of complex distributed systems. If you enjoy working in a fun, high energy environment and want to work on scaling challenges like this one, then apply here or checkout all open positions. We’d love to hear from you.

Unless otherwise indicated, all images and diagrams provided herein are by Coinbase.


Improving Bitcoin Reliability through Child Pays for Parent was originally published in The Coinbase Blog on Medium, where people are continuing the conversation by highlighting and responding to this story.

Read more on Coinbase
Posted on October 2, 2018
Welcome Jonathan Kellner, Managing Director of Coinbase’s Institutional Coverage Group

As crypto continues to mature and evolve into a fully fledged, tradable asset class, institutional investors of all types will play a critical role in the market. These participants will range from crypto-first institutions such as token issuers and crypto hedge funds, to more traditional finance players such as hedge funds, banks, asset managers and family offices. Each will have a role to play, and each will have different needs. As Coinbase continues to grow and act as the bridge between traditional finance and crypto world, we’re committed to bringing on leaders who can help us chart a course through these previously uncharted waters.

Today we’re announcing that Jonathan Kellner will join us as Managing Director of our Institutional Coverage Group. Jonathan brings more than two decades of financial markets experience to his role, currently serving as CEO of Instinet, an early pioneer of electronic trading and a leader in institutional agency execution services. In his new role at Coinbase, Jonathan will take charge of our institutional sales and support organizations, and will play an integral role in bringing our suite of institutional crypto trading products to professional investors. Prior to his appointment as CEO of Instinet in 2008, Jonathan led the company’s U.S. Sales Trading Group, as well as previously holding key positions at Charles Schwab & Co. and Morgan Stanley throughout his career.

Please join us in welcoming Jonathan to Coinbase!


Welcome Jonathan Kellner, Managing Director of Coinbase’s Institutional Coverage Group was originally published in The Coinbase Blog on Medium, where people are continuing the conversation by highlighting and responding to this story.

Read more on Coinbase
Posted on October 2, 2018
Chris Dodds, Charles Schwab Board Member, Is Joining Coinbase’s Board

Left to right, Brian Armstrong and Chris Dodds.

I’m pleased to announce that Chris Dodds, who serves on the Board of Directors of The Charles Schwab Corporation and as a senior private equity advisor, is joining the Coinbase Board of Directors.

Chris brings world-class leadership skills, deep knowledge of the financial services industry, and significant financial and accounting experience. His extensive expertise will be an asset to the Coinbase leadership team as we focus on scaling our business.

Chris started a 21-year journey with Schwab in 1986, holding a variety of financial positions in treasury, corporate development, and financial planning and analysis throughout his tenure at the company. He served as Vice President of Corporate Finance and Mergers and Acquisitions from 1989 to 1993, and Treasurer from 1993 to 1997. Chris was also the company’s Corporate Controller, followed by eight years as Chief Financial Officer from 1999 until 2007. He transitioned to serving as a Director of Schwab Bank in 2007, and joined the Board of The Charles Schwab Corporation in 2014, where he serves as Chairman of the Risk Committee.

In 2008, Chris became a senior advisor in the Financial Services practice at The Carlyle Group, a private equity firm. After 10 years there, he transitioned to The Cynosure Group, another private equity firm, where he currently serves as a senior advisor.

His addition to the Coinbase board is part of our effort to expand our financial services capabilities as we head into this next chapter for the company and the cryptocurrency industry as a whole.

Welcome Chris!


Chris Dodds, Charles Schwab Board Member, Is Joining Coinbase’s Board was originally published in The Coinbase Blog on Medium, where people are continuing the conversation by highlighting and responding to this story.

Read more on Coinbase

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