Application programming interface

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How to correctly get real-time trading data from exchanges such as Kraken?

I'm trying to gather real-time trading data from several exchanges. Some exchanges provide websockets, which works great. Others, such as Kraken, don't. For Kraken, in particular, I'm calling: ...
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10 views

Is there any site and/or service that provides historical trade data for most exchanges?

Looking, for example, at Kraken's API - seems like there is no way to get the whole historical trades of a trading pair. Is there any service that provides such information in an API-friendly format? ...
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46 views

What hardware and bandwidth requirements would a server need to fulfill to run Bitcore?

What's the cost of running Bitcore on AWS or DigitalOcean? I know I'd need about 128gb of hardrive space, but I'm not sure how much the typical bandwidth costs would be, and how much RAM or cores I ...
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1answer
54 views

Blockchain.info send may transactions API v2

I'm currently using v2 of Blockchain.info's API and am wanting to utilise "Send Many Transaction" and am having some issues. I have 1 wallet with many addresses, I am trying to send 2 transactions ...
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1answer
31 views

How are Fees Charged at Kraken Exchange?

How are fees charged when I initiate a trade? Are they subtracted from my order's volume? Are the fees applied separately from my account's balance? Can I set the currency I want my fees to be ...
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23 views

Why is Blockchain.info API failing?

I am trying to use blockchain.info API to get a block. I do in python: from blockchain import util from blockchain import blockexplorer block = ...
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3answers
166 views

How to check Bitcoin wallet balance without any API

I am building an application and that will involve large set of bitcoin wallets and need to keep on checking for balance. I don't want to use any third party APIs as they all have hourly/secondly ...
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2answers
54 views

Building a web app to collect Bitcoin payments. How should I monitor transactions on payment?

I'm looking to create a web app similar to coffee.foldapp.com where they load up a bitcoin address and once you pay it will automatically show the Digital code product. They seem to be using ...
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21 views

Wondering if this wallet feature exists

I've been wondering is it possible for a wallet to have some sort of rest API I could call in order to send funds to another bitcoin wallet of my choice. for example ...
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1answer
45 views

Blockchain Receive API - custom Parameters

I am trying to get variables back from the callback URL, but I can't figure out how to add custom parameters correctly. This is how I have them written right now: $newAddy = ...
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1answer
23 views

Bitfinex get credits and convert timestamp to JS Date

I'm fetching my active credits in BFX and trying to discover when I'll have my funding back. This is a response example: /v1/credits [{ amount: "294.4316181", currency: "USD", id: ...
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1answer
124 views

Are there Ethereum API wrappers? [closed]

I'm looking into developing some Go software on Ethereum and I'm wondering - are there any API wrappers around for Ethereum (something like BTCSuite's BTCRPCClient is for Bitcoin)? I know there is a ...
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1answer
71 views

Are there any web wallets around with open APIs?

For a long while, blockchain.info offered a web wallet with a convenient web API, but it recently turned out that it now requires an installation to function. I'm wondering - are there any other ...
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28 views

Library ZMQ to Java does not work

I am trying to connect to a bitcoin node using the ZMQ library for Java. the problem is that when I try to receive a response the code remains frozen. Returns nothing. This is my code: public class ...
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1answer
39 views

Finding the timing of blocks, afterwards?

I understand that the timestamps on blocks are not fully accurate. Given only that information, it's efectively impossible to do retrospective analyses of timing of blocks. (For example, this; ...
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0answers
127 views

Blockchain.info Receive Payment callback problem

I am setting up a website to accept bitcoins using blockchain.info API, it's all set, code is ok, tested and working, I receive payments and everything but blockchain.info just won't call the callback ...
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1answer
14 views

International Bitcoin Payment Platform [duplicate]

I need to integrate bitcoins payments in my web application. I was about to use Stripe platform for accepting bitcoins (works exactly the same than for accepting credit cards) but I realized they ...
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1answer
73 views

What causes the wallet functions to be disabled?

I have run bitcoind as a server on one host. On a second host, I have configured bitcoin-cli to interact with bitcoind. However, all wallet commands are now disabled with this new configuration. ...
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1answer
40 views

How out of block chain transactions work, and is there any API for that?

i wonder how out of block chain transactions work, because till i know it happens but "is not recommended" (it is what i read on the internet), i want to manage some micro transactions but as it is ...
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0answers
51 views

Bitcoind has too slow API call performance on large wallets

Bitcoind (bitcoin-0.11.2, linux32) has too slow performance when the wallet size gets bigger, i will post here some average timing behaviors. The wallet size is 410MB. A getbalance call requires 1.45 ...
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1answer
199 views

API key Request from blockchain.info

I am working on making a raw transaction on bitcoin network. I had requested an API key at blockchain.info and it has been more than 24 hours and I still have not got any reply. What should I do?
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0answers
12 views

Write code on blockchain.info api(PHP) [duplicate]

I want to write contract(Application) on block-chain.info using PHP and JSON...How would i start?And how would i place that contract on block-chain bitcoin network?
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89 views

blockchain.info php api

Hello I am new to this block chain environment,but i am currently working on project which requires blockchain.info api(php),so could anybody please tell me how to use this api in order to send data ...
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1answer
72 views

Problems checking BTC current balance using blockchain.info's API, am I correct here?

I have a script that uses the Blockchain API to check the current balance on all my accounts one by one. When I reach a certain balance I sweep to a master account. Am I using the correct code here ...
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138 views

Example Code for connecting to Bifinex.com websocket API?

Does anyone have example code for utilizing the Bitfinex Websocket API? Looking for something written in Python.
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1answer
155 views

Can I use curl to call getInfo from a the Bitcoin server?

I am wondering if its possible to use curl to getinfo from the bitcoin server thanks. <?php // init the resource $ch = curl_init(); // set a single option... $username = 'usernamefromconfig'; ...
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228 views

Xapo api tutorials

I am building a website and wish to have a deposit bitcoin widget on website. I want to have xapo api to generate new address and get callbacks from it. Can someone please help me figuring out the ...
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1answer
75 views

How do deposit bitcoin works?

I visit so many faucets everyday and some gaming faucets like wonderlandcoin,playbitcoin,faucetbirds,robotcoingame and many more.I also visit some betting websites like satoshibet,777dice and many ...
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1answer
28 views

Blockexplorer.com API POST error

I'm trying to write Python code which utilises the (Insight) Blockexplorer.com API , particularly the POST functions. I'm testing using the iOS REST app, Restler (see screenshot). The call I'm trying ...
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2answers
211 views

Callbacks using blockchain.info's API

I'm trying to accept bitcoin payments on my website using blockchain.info's API. However, I'm confused with their callback. I've read through their callback, but how would I know if the transaction ...
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1answer
105 views

List of blockchain explorer APIs?

I'm gathering a list of Bitcoin / Blockchain APIs. I mean web (REST) APIs that allow you to do basic blockchain queries through http(s) API calls, such as: getting the balance on an address, getting a ...
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1answer
135 views

How to get a single value in BTC-e API

how will i be able to get a single value out of BTC-e API. This is the current API: https://btc-e.com/api/3/ticker/btc_usd As you can see, it shows lots of information. What can i do so that i will ...
2
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2answers
375 views

How to access Latest Transactions using the Blockchain.info api?

I'm new in bitcoin, I just want to return json scrutucture from latest transactions from time to time. I couldn't figure by searching their reference, I think it requires a level of knowledge in ...
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574 views

Transaction rejected by our node. Blockchain receive API

I use the Blockchain.info receive API with great succes. Yesterday I created a new address: 1MMVp6fzZ6QrVYXg9iRSJb5PsM8crq5iMZ It received 1.5 BTC and was transferred to my BTC address (unfonfirmed). ...
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2answers
53 views

Calculating a sum of received bitcoins

I have a list of bitcoin addresses provided by a user and I am trying to find out a sum deposited to these addresses. I am using blockexplorer.com API to obtain transactions. This is a typical API ...
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102 views

bitcoin api blockchain - where is the money?

I have made several transactions via blockchain API, and I'm getting the callback everything works normally. But today when I see my balance is zero and it has no transaction history. Transactions ...
2
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1answer
123 views

How to get value of incoming transactions from Blockchain.info API

I'm looking at the blockchain.info API and I'm having a difficult time finding the value of incoming transactions. That and the number of incoming transactions are the only things I'm interested in. ...
2
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1answer
193 views

Best Python API for sending Bitcoins from a Multi-Sig wallet

I want to create a multi sig wallet which I can broadcast transaction from through an API. I would like a wallet with a permanent public address not one that changes every time I run the code. I was ...
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44 views

About blockchain.info Api Usage

When I got the code I use a url such as abc.com and I hope to know if I use my api in def.com will it work? If so what is the url meaning? Every time it will generate wallet and if I use this API to ...
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37 views

What is confirmation notificaion in bitcoin via block chain API

I have used bitcoin block chain API in my website, it works and i updated the db when call back the function call but the problem is that db updated multiple times my codes are if ...
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1answer
62 views

BIP 38 Implementions for Altcoins?

Trying to identify implementations for creating BIP 38 encrypted private keys for alternative coins to spark collaborative open source discussions to standardize BIP 38 to support altcoins. Please ...
3
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1answer
140 views

Using a Bitcoin or Litecoin miner for attacking PBKDF2 / SHA-256 [duplicate]

I'm wondering if it would be possible to utilize a Bitcoin or Litecoin miner to attack, say, a password database that uses PKBDF2 with HMAC / SHA-256. PBKDF2 uses multiple iterations of a PRF - ...
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1answer
435 views

Blockchain.info API - Check transactions from one address to another

Using the blockchain.info API, how can I check the transactions from one address to another, including the number of confirmations? Clarification: I have one address let us say. I want to ...
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0answers
149 views

Writing a GPU Bitcoin mining client (learning purposes)

I want to write a basic GPU miner from scratch for learning purposes. By "from scratch" I don't mean that I am unwilling to use libraries but I want it to be similar to real GPU mining software, and ...
3
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1answer
45 views

Is there an API that supports different Bitcoin wallets?

Is there an API that has sending and receiving functionality of different Bitcoin wallets such as Coinbase, Bitcoin wallet, etc... Or would I have to manually incorporate each wallet API myself?
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0answers
75 views

Blockchain.info not sending my IPN to my website

Ok, so I have set up my blockchain.info API. But when I send a payment to the address given, it doesnt send the data. I use the exact same settings and callback in the testing, and it works amazingly. ...
0
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1answer
45 views

Retrieving BitCoin Payments, Confirmation Question

I'm receiving BitCoin payments via the blockchain.info api. I notice it sends a confirmations parameter, and it also continues to call the callback url until the response is *ok*. Instead of ...
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1answer
298 views

Problems with Blockchain API

Im having problems because when a user pay to a forwarding address, the forward address receives bitcoins instantly, but takes nearly 1 hour to send those bitcoins to the destination address, the real ...
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BitCoin Api, Result Keys,BitCoin Protocol documentation

I am developing android application using https ://blockchain.info/api. i am having problem to understand the Keywords used in result for https: //blockchain.info/address/$bitcoin_address?format=json. ...
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1answer
164 views

BlockChain API playground OR SandBox?

I am android developer. I have used https://blockchain.info/api/blockchain_wallet_api API for my application But the problem is now how can I test my application (transactions) with out having ...