Coinbase is a hosted web-based eWallet used for sending, receiving, and storing bitcoin.
Users can also connect a U.S. based bank account to buy and sell cryptocurrency via bank transfer.
The service aims to be the easiest way to get started with digital currency, modeled to provide an experience familiar to those who are comfortable using PayPal.
Buy Bitcoin
Coinbase allows users to purchase a digital currency by directly transferring money from a bank account. Although the exchange rate is locked in at the time of order placement, the digital currency is not released for four business days. Verified users are allowed to create instant-purchases, which credits the digital currency to their account before the bank transfer clears.
Linking a bank account can be done using Instant Account Verification (by providing your bank account credentials) or through a Challenge Deposit method which takes 2-3 business days to complete. The bank verification process is very similar to the relevant procedure at PayPal.
Sell Bitcoin
Proceeds from selling a digital currency are sent as a direct ACH transfer to a linked bank account. The price is locked upon executing the sell and the funds arrive in the bank account in 2-3 business days.
Send Money
This feature provides the ability to send a digital currency to both email and digital currency wallet addresses. The amount of cryptocurrency sent can be determined by entering a value in either USD (converted to a digital currency based on the current exchange rate) or the digital currency. If digital currency is sent to an email address not currently registered with Coinbase, an account will automatically be created and a message will be sent to that email address prompting the user to verify the account and claim the digital currency.
Request Money
This feature provides the ability to request funds (denominated in either USD or a digital currency) through an invoice which is sent by email.
Exchange
On January 26, 2015 Coinbase announced via a blog post [1] they were launching a United States based and US regulated bitcoin exchange. The exchange located at https://exchange.coinbase.com/ allows users from select US states and territories begin trading using an order book on the Coinbase website.
