The peer-to-peer payment system, which uses the same unit of account and the same data transfer protocol, “Bitcoin,” is loved by many because of the cryptographic methods that protect the system. Another obvious advantage is that all information about transactions between system addresses is available in open form. In this article we will look at a way to add Bitcoin to your website as a payment system.
1. Introduction
2. How to get an API key?
3. Create new addresses for your clients
4. Security
5. Conclusions
Introduction
Bitcoin is a fairly attractive payment method for online entrepreneurs, mainly because the fees for using this method are extremely low compared to PayPal or credit cards. Accordingly, this allows you to earn higher profits and offer services to clients all over the world at affordable prices. Moreover, Bitcoins are technically not subject to taxes because they are not a form of government-issued currency. Also among the advantages of the Bitcoin system is the absence of the need to contact intermediaries.
In this article we will try to add Bitcoin as a payment method on the site. To accept payments we will use Blockchain.info Receive Payments API V2 as it is simple, secure and can be implemented in less than 10 minutes.
TOP cryptocurrency services providing API
With all the variety of products presented on the cryptocurrency market, finding something worthy is often not such an easy task, especially when it comes to searching and collecting data for developing your own services. The coinpedia.org portal decided to share a selection of the best services that provide APIs.
1) Coinbase
Coinbase is a cryptocurrency exchange with a very powerful API that has 6 main features: Wallet API, Coinbase Connect or Oauth2, Wallet Notifications, Merchant Checkouts, Coinbase Exchange API and Toshi.
Website: https://developers.coinbase.com/
2) Bitpay
The Bitay API is best suited for developers who need to create an online store and use a ready-made checkout system to accept Bitcoin.
Website: https://bitpay.com/api
3) Block.io
This service offers an API for working with Bitcoin, Litecoin and Dogecoin wallets. Allows you to receive real-time notifications and create forwarding addresses to any destination of your choice.
Website: https://block.io/docs
4) Kraken
Another cryptocurrency exchange. The Kraken API allows developers to access assets, tickers, trades, orders, balances, and other information. The API is suitable for developers who want to build a currency converter or price ticker. Users will have access to a rich bank of data and statistics for numerous cryptocurrencies.
Website: https://www.kraken.com/help/api#general-usage
5) CryptoAPIs
CryptoAPIs is developed using REST and JSON API protocols for interacting with blockchains. This API enables the creation of a decentralized, distributed cloud storage marketplace.
Website: https://cryptoapis.io/
6) Global Bitcoin Price Index (GBX API)
The GBX API is built on BitcoinAverage.com, one of the first price indexes in the cryptocurrency and blockchain industry. This API does not have wallet integration or transaction support. Free use up to 5000 monthly request.
However, there are some paid features that include 1-second rate updates for over 165 currencies. There is also access to historical data going back to 2010. Additionally, the API supports JSON and CSV formats.
Website: https://bitcoinaverage.com/en/bitcoin-price/btc-to-usd
7) CoinMarketCap
This is a popular service for tracking current market capitalization, unit price, recent volume, circulating supply, and daily fluctuations for over 1,600 different cryptocurrencies. The API offers a simple and reliable connection, does not have wallet integration and does not support transactions.
Website: https://coinmarketcap.com/
CoinCap
The CoinCap API offers real-time pricing and market activity data for over 1,000 cryptocurrencies. It collects information from multiple exchanges to provide transparent and accurate data on the price and availability of assets. Comprises direct competition for Coinmarketcap.
Website: https://coincap.io/
9) Bitcoin
The Bitcointy API provides an average Bitcoin price based on data from multiple sources. The API also supports fiat currencies such as EUR, GBP, CAD, JPY and CNY. Additionally, the API is free with unlimited requests. Some of the additional features of the API are clear data updates, direct conversion of a certain amount of Bitcoin to any currency, and the ability to get conversion rates for all sources or from a single source.
Website: https://bitcoinity.org/markets
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Gordyshev Oleg
Crypto investor. Blockchain project analyst.
Blockchain.info's API V2
Paychanges API V2 Blockchain.info is the easiest and fastest way to start accepting Bitcoin payments from anyone, anywhere in the world with a simple HTTP GET request. It's worth noting that one of the main hurdles associated with accepting Bitcoin payments is the need to create a unique Bitcoin address for each new user or account. These generated addresses must be controlled and stored securely. The payment acceptance API is responsible for creating and monitoring Bitcoin addresses. When payments are received, the API allows you to notify the server using a simple callback procedure.
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30 days. Tracking Your Bitcoin With our Watcher Wallet, you can track multiple wallets and addresses. And also receive notifications by email when transactions are made.
Bitcoin address validator. Check the Bitcoin address to see if it is valid. This tool will see. Is the given string of text a correct and valid Bitcoin address. This tool can come in handy when verifying an address before sending any Bitcoin to it. Some key facts about valid Bitcoin addresses: A Bitcoin address is between 25 and Click Electrum from the list and follow the installation instructions.
When you launch Electrum. Select start a new wallet (by default, click next). Select If you really plan to check 58*58*58*58 addresses. I recommend that you add a delay to your source code. So that you don't overwhelm them with requests or hit any limiter. Which they have.
Also modify the code to search for multiple addresses per query (multiple addresses can be separated by '|'). A new address can be created at any time through the official Bitcoin application - Bitcoin Core. Your Bitcoin wallet can have so many addresses. As you want. And you don't need to change addresses every time. When you make a transaction. You can send multiple transactions. You can check and track the balance of multiple Bitcoin addresses with this easy to use coin balance tracking software.
Here are the steps: Download and install Coin Balance Tracker. Select the Create a File tab. Containing an array of addresses in javascript format. Which one you want to check.
(example: ['address1′,'address2']) Save it in the same directory. As in diplomadosuejecutivos.cl Update the file name on line 9 of diplomadosuejecutivos.cl with the name with your name. Coin Balance Tracker Coin Balance Tracker is a cryptocurrency tool. Which will help you to view the current balance history of any BSV/BTC/BCH Bitcoin address. You only need an internet connection and a valid coin address string.
This is a secure service. Because it only uses public blockchain data. There is no need for a login and password.
Before you send your Bitcoin to any address. You can check. Have there been any reports of that? That this address is used in fraud. Bitcoin Abuse is a popular website with a public Bitcoin database. Check Balance of Multiple Bitcoin Addresses. Please enter one address per line.
Enter a minimum of one address and a maximum of 50 addresses depending on the process. Check the balance of multiple Bitcoin addresses With our free online tool, you can check the balance of multiple Bitcoin addresses quickly and easily.
Also important to note. Which is because you can see all the transactions. Occurring on the Bitcoin network. Multiple Bitcoin addresses can be grouped together.
How to get an API key?
To use the Blockchain.info API, you must fill out the application form at:
https://api.blockchain.info/v2/apikey/request/
Please note that this API key is for receiving payments only. There is a standard wallet API that is available in Python, Java, .NET (C#), Ruby, PHP and Node and can be used to send and receive payments. However, it differs from the Receive Payments V2 API in that it is not suitable for generating different addresses for different users.
The figure below shows the Receive Payments V2 API application form. You will need to enter your name, email address, the URL of the site where you will implement the API, and a description of the products you sell or services you offer on your website. In most cases, the application is processed within 2-3 business days.
Figure 1. Application form for Receive Payments V2 API
Changing Receiving Address – Ledger Support
In diplomadosuejecutivos.cl Explorer provides block. Transaction and address data for the Bitcoin Cash (BCH) and Bitcoin (BTC) chains. The data is displayed in a stunning interface and is available in several different languages. Bitcoin blockchain information for Bitcoin (BTC). Including historical prices. The most recently mined blocks. Size of the mempool of uncommitted transactions and data for recent transactions.
$59, Price. Price Bitcoin price for the last day. 1 day. 1 day. 7 days.
Obtaining an Extended Public Key
To be able to receive payments, you will need a BIP32 account. The easiest way to start accepting bitcoins is to create a blockchain.info wallet at:
https://blockchain.info/wallet/#/signup
You need to create a new account that will be used exclusively to receive transactions supported by the API. When calling the API, you need to use the xPub key, which can be found in “Settings->Accounts & Addresses -> Advanced Options -> Show xPub Code”.
Figure 2. Obtaining the xPub key
Creating new addresses for your clients
For each client we will have a unique address to which he will send payments. When you receive money to any of these addresses, you will be sent an HTTP notification. Note that each call made to the server will cause the index parameter to be incremented, this is to ensure that the same address is not assigned to more than one client. However, all funds sent to any of the created addresses will be added to the same wallet.
https://api.blockchain.info/v2/receive?xpub=$xpub&callback=$callback_url&key=$key
Please note that there is a software limitation - the wallet does not scan more than 20 unused addresses. Thus, the API will return an error if more than 20 of the previously created addresses have not been used. If you encounter this error, you will have to either migrate to a new xPub (in the same blockchain.info block) or start receiving payments to one of the previously created unused 20 addresses.
This can optionally be controlled by adding gap_limit as an additional URL parameter, which will not increase the number of Bitcoin addresses that can be tracked by Blockahin.info servers. Adding the gap_limit parameter changes the maximum allowed interval after which the API will no longer generate new addresses.
https://api.blockchain.info/v2/receive?xpub=$xpub&callback=$callback_url&key=$key&gap_limit=$gap_limit
Below we will look at the parameters used in the given URL:
- xpub : Your xPub (the destination where your customers' payments will be sent).
- callback_url : This is the callback URL where notifications will be sent when a payment is received.
- key : Your payment receiving API key, which you will receive after the application is successfully accepted.
- gap_limit : An optional parameter that specifies the number of unused Bitcoin addresses allowed before an error is returned.
Using xPub to create an unused Bitcoin address:
curl https://api.blockchain.info/v2/receive?xpub=xpub6CWiJoiwxPQni3DFbrQNHWq8…
Now let your clients send funds to the address provided in the response:
RESPONSE: 200 OK, APPLICATION/JSON
{"address":"19jJyiC6DnKyKvPg38eBE8R6yCSXLLEjqw","index":23,"callback":"https://mystore.com?invoice_id=058921123″}
Below is an example implementation in PHP:
$secret = 'ZzsMLGKe162CfA5EcG6j';
$my_xpub = '{YOUR XPUB ADDRESS}';
$my_api_key = '{YOUR API KEY}';
$my_callback_url = 'INSERT YOUR CALLBACK URL HERE +/- that can include customer identification parameters such as ?invoice_id=058921123&secret='.$secret;
$root_url = 'https://api.blockchain.info/v2/receive';
$parameters = 'xpub=' .$my_xpub. '&callback=' .urlencode($my_callback_url). '&key=' .$my_api_key;
$response = file_get_contents($root_url . '?' . $parameters);
$object = json_decode($response);
echo 'Send Payment To: ' . $object->address;
Multiple Verification of Bitcoin Addresses
Check the balance of multiple Bitcoin addresses. Easy Balance. Check the balance of multiple addresses. Coin. Updated: Please enter addresses (one address per line) Additional *Please. Use a delay in case of a large number of addresses. Otherwise, your IP may be blocked *The list of addresses is stored on your local system and is not saved on any server.
Bitcoin address. Allowed by our tool. Has base58 or xpub format. Our tool will check the final/current balance, number of transactions and total received up to 50 addresses upon request, if you want to check more than 50 addresses please. Split your list and check up to 50 addresses at once. The purpose of the script is to check the balance of one or more Bitcoin addresses on three different blockchains: Bitcoin, Bitcoin Cash and OMNI.
Shown as total deposits. So is the available balance. The script is written entirely in javascript. And anyone can view its source code. This website does not store any data. Bitcoin address. Allowed by our tool. Has base58 or xpub format. Our tool will check up to 50 Bitcoin addresses through the process, if you want to check more than 50 addresses please. Split your list and check up to 50 addresses at once. This process will check in advance. Is there a duplicate address on your list? By removing the duplicate.
Check the Balance of a Bitcoin Address The BitRef tool will help you view the current balance of any Bitcoin address. The new Bech32 address format is also supported. You only need to provide. This Bitcoin address checker will look for the selected Bitcoin address and analyze several factors. To give an overall wallet score. Check the balance of multiple Bitcoin addresses. Contribute to the development of akin/easybalance. By creating an account on GitHub. Check the Bitcoin address. To find out. Has this been reported as a scam? Report a bitcoin scammer. Such as email bitcoin sextortion porn scam. Investment scam or mining scam; Check your Bitcoin wallet balance; Find the owner of the Bitcoin address; Bitcoin wallet transaction alerts notify you via email. When a Bitcoin address is active on the blockchain.
