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Questions tagged [api]

An API is an Application Programming Interface and services often have APIs available for developers to write software which accesses information offered by the service.

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How to explore transaction chain via Original Bitcoin API as blockexplorer does it

Is there any possibility to explore transaction chain via Original Bitcoin API (https://en.bitcoin.it/wiki/Original_Bitcoin_client/API_Calls_list) as the blockexplorer does it. If not, why?
tokyo's user avatar
  • 65
4 votes
1 answer
513 views

Cryptocompare API

Anyone here using cryptocompare api? Where would be the best place to ask questions about it? I am just starting with it and for example I have stumbled upon few issues. Like, coin tickers with an ...
IgorD's user avatar
  • 41
3 votes
2 answers
359 views

In Electrum, how does one watch/poll a wallet for an incoming payments to a certain address via API?

I want to create a simple way to accepting bitcoins on my own, using Electrum. I don't except big volume. I suppose, I'd have at most a handful of incoming payments in the beginning. That is, I ...
zirnamaraji's user avatar
3 votes
1 answer
803 views

Local balance query for Bitcoin address

I would like to be able to query the balance of an address (not belonging to me). The data should come from a fully synced bitcoin full node inside the local LAN and I do not want to query any api ...
Michael's user avatar
  • 202
3 votes
0 answers
2k views

Get crypto-currency price at a timestamp without limits

I'm trying to get the price of a crypto-currency at a specific timestamp. So I used the API cryptocompare : https://www.cryptocompare.com/api/# For example : https://min-api.cryptocompare.com/...
Gatsby's user avatar
  • 131
3 votes
3 answers
1k views

Get transaction that spent a transaction id

The blockchain.info API allows for querying information about a particular Transaction by its ID. But if you want to follow the coins to the next transaction, I'm not seeing what the next query should ...
MidnightLightning's user avatar
2 votes
2 answers
158 views

What are bitcoin Pool APIs?

I contacted a website and asked them where they get their data for crypto like Bitcoin, as I am trying to find the place for the most up to date and reliable data on Bitcoin and other crypto. They had ...
Joe's user avatar
  • 63
2 votes
0 answers
154 views

API for raw Bitcoin latest block data?

I would like to get the full raw data on the latest bitcoin block. I was hoping I could get this from an API. I looked at blockchain.com's API's but these don't seem to provide the full data for each ...
Toms Code's user avatar
  • 121
2 votes
0 answers
615 views

Coinbase "convert" API?

I use the convert functions at coinbase to take advantage of market changes to increase my position amounts. This weekend I am going to write a php script that tracks the available conversion pairs ...
user3630390's user avatar
2 votes
1 answer
218 views

Different balances in API block explorers for BTC

BTC.com block explorer shows bigger balance than for example Insight or Blockchair. For example: https://btc.com/1FLDCfr9iG7n6bAdGsqBXmhaLgC4aSze72 https://insight.bitpay.com/address/...
wallebach's user avatar
2 votes
0 answers
333 views

Multicoin wallets with programmable API

Does there really not exist a web multicoin wallet that has a programmable API that can be used by apps to send transactions? It is common practice to authorize your credit card in an app so that it ...
Fabis's user avatar
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2 votes
0 answers
629 views

historical market cap in json/csv for all coins?

I want to run a backtest on a "S&P 500" strategy for crypto investing. I'm looking for historical market cap data. Something like what coinmarketcap.com provides, but historically and in an easy ...
sp500 guy's user avatar
2 votes
0 answers
243 views

Can't access Blockchain.info API using ASP.NET

I am using ASP.NET(VB) to call API Try Dim strUrl As String = "https://blockchain.info/tobtc?currency=USD&value=500" Dim request As WebRequest = HttpWebRequest.Create(...
Yusuf's user avatar
  • 21
2 votes
0 answers
335 views

How do i loop through all the related address in a given wallet address

I am using bitcoin block chain API, it is possible to get amount sent in a transaction id and the addresses it was sent to. My problem is getting the RELATED ADDRESSES to the address that sent the ...
Emelda Chisom Agbo's user avatar
2 votes
3 answers
945 views

How can I get the date of the last transaction from the blockchain.info API?

Is there a way to request the date of last transaction via API? I run a request to see balance of my addresses and need to request the date of the last transaction, how would I do that?
Mccallum's user avatar
2 votes
1 answer
467 views

receive payement bitcoin api like blockchain API v1?

I am looking for a API function as the first version of the API blockchain.info (no API key). If there are none, I'd like you to tell me where to turn to create an API with a similar operation and a ...
wsquet's user avatar
  • 21
2 votes
0 answers
117 views

Can we know the address list which blockchain API has created?

I am currently using blockchain payment API. This API has created the addresses for receiving payment. https://blockchain.info/api/api_receive Can we know the list of unused addresses this ...
kfujita's user avatar
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2 votes
0 answers
163 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 ...
Mike's user avatar
  • 161
2 votes
0 answers
2k 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). ...
Mathias Maes's user avatar
2 votes
0 answers
469 views

How to add blockchain.info API key to pibitcointools

I have a query-intensive app I'm building that keeps timing out with the message: Traceback (most recent call last): File "test.py", line 72, in <module> array = bitcoin.multiaccess (...
Bitswim's user avatar
  • 51
2 votes
0 answers
462 views

CoinBase Callback URL in Java

I using CoinBase API for transactions in a game. I assign a callback URL with the address so as to get instant notification on payment transactions. the URL is called but it is not sending any data. ...
RahuJoshi's user avatar
2 votes
1 answer
390 views

Blockchain receive payments API Network propagation

I'm using the Blockchain API to generate an address to receive payments. I received a payment to a generated address, then Blockchain sends the received amount to the address I defined but that ...
andrepcg's user avatar
  • 121
2 votes
0 answers
314 views

API: keeping account balance positive (+knowing in advance the transaction fee)

I'm using the json API. I need to keep all the account balances positive: I call getbalance first, check if it has enough bitcoins to proceed, and then move or sendfrom. This approach causes two ...
o0'.'s user avatar
  • 5,230
1 vote
0 answers
130 views

CLI Tool or API for btc address generation given a xpub

I'd like to script a short tool on the commandline. Therefore I need all used addresses of my wallets derived from a given xpubs. Don't like to implement it by myself. Is there an already implemented ...
steff123's user avatar
  • 153
1 vote
0 answers
86 views

Buy Bitcoin with NBitcoin c# Web App

I have been using the NBitcoin lib with c# to create a Bitcoin wallet app. I have pretty much sorted out the creation of the wallet and everything that this entails. What I need some help with is on ...
Michael Brooks's user avatar
1 vote
0 answers
349 views

Can't query own node

I'm trying different ways to query my own bitcoind node on testnet but I'm failing every time. Tried using bitcore's API and nodejs: async function tryBitcoin() { const data = await axios.get('...
dNyrM's user avatar
  • 123
1 vote
0 answers
79 views

blockchain.com api | How generate "Legacy" & "Nested SegWit" & "Native SegWit" addresses for receive separately?

Please check out this link : https://www.blockchain.com/api/api_receive As you see we can generate receiving addresses for our customers using this api. My question is what is the type of that ...
SilverLight's user avatar
1 vote
0 answers
739 views

What is the rate limit of the Esplora instance blockstream.info

Blockstream.info provides a free API, for example: https://blockstream.info/testnet/api/tx/d4b1add055db58343500157a6525a73ceb9c8850f0fb435f1f60071e8cad6540 I would like to know what the rate limit for ...
MCCCS's user avatar
  • 10.2k
1 vote
0 answers
41 views

Bow to know how much amount my wallet sent with Bticoin-core API

I have updated bitcoin-core from version 0.16 to 0.17 and found that there is no way to see how much amount I sent only (excluding received amount) from my wallet. With bitcoin-core version 0.16, I ...
kenichiro's user avatar
1 vote
0 answers
135 views

Getting mass addresses current balance

How can i get the current balance of massive addresses? I'm getting address balances now on blockchain.info but I need to check about 1000 of addresses in one minute. The issue is that they blocking ...
securityGuy22's user avatar
1 vote
0 answers
24 views

Inconsistent Volume Data from Gdax API

I've queried Gdax API in the past and it seems that the API is currently returning a completely different data set for 'Volume'. For example, when I queried the API for historical BTC prices around 1 ...
S.O.S's user avatar
  • 419
1 vote
1 answer
276 views

Access Kucoin OHLC data from API?

I need to access kucoin Open-high-low-close (OHLC) data from Kucoin API. Looking in https://docs.kucoin.com/#get-trade-histories, I deduced that to access OHLC data (for instance BTC versus USDT, ...
daveturner's user avatar
1 vote
1 answer
109 views

Question Regarding Send_to_many function of blockchain wallet api

I am using send to many function of blockchain wallet api and i am facing issue. when upto 20 transaction done then after i get error in terminal that 1538652825520 - error: ERR_PUSHTX ...
Muhammad Fahad's user avatar
1 vote
0 answers
565 views

List All the transactions of an adress - API

I am looking for a way to list all the transactions of an address. For instance, if we use the Blokchain.info API we get: url='https://blockchain.info/rawaddr/1PFtrRjbq4aLfM7k4tyLZ3ZAuTsgLr6Q8Q' ...
Younes S's user avatar
1 vote
0 answers
275 views

Programmatically Get Change Address From Blockchain

BIP004 states that a derivation path's 4th digit will be 1 if it is a change address like this: m / purpose' / coin_type' / account' / change / address_index https://github.com/bitcoin/bips/blob/...
Christian Findlay's user avatar
1 vote
0 answers
2k views

call JSON RPC API Using C#?

I am trying to call JSON RPS API Using C#. I have added my own IP address with its credentials. Before writing API in C#, I have installed Bitcoin on my server. Now, using the server details, i ...
Orion's user avatar
  • 11
1 vote
0 answers
1k views

How to get all transactions of address with bitcoin api in node.js?

I want to find all transactions of address in regtest. How it is possible to do? I have this solution, but I get response (201) before for ends. I think it's bitcoin timeout false. bitcoin....
Agniezhk's user avatar
  • 111
1 vote
0 answers
386 views

Having trouble using GDAX API to place market buy order

Here is the documentation I'm following and to place a buy order, the syntax follows the following format: # Buy 0.01 BTC @ 100 USD auth_client.buy(price='100.00', #USD size='0.01', #...
madsthaks's user avatar
  • 131
1 vote
1 answer
2k views

Basic bittrex api question

I read the api documentation but I could not find anythin related to market buy and sell commands. Where do I find this information? Moreover, I read the following from the api site https://bittrex....
Marco's user avatar
  • 305
1 vote
2 answers
396 views

Getting multiple OHLCV candles with API with one request

i don't know if this is the right place to ask this, but i haven't found a proper one to do so, so here we go : I wanna get only the LAST OHLCV candle from multiple markets with the cryptocompare api ...
Leonardo Fernandes's user avatar
1 vote
0 answers
962 views

How to get unconfirmed-transactions count by API

This site shows counts of unconfirmed transactions. And there is a API that returns in json format. https://blockchain.info/ja/unconfirmed-transactions?format=json But I couldn't find the count in ...
ironsand's user avatar
  • 111
1 vote
0 answers
227 views

Liquidity Solution for Crypo Exchanges

I need to connect to a network of global crypto-exchanges and shares their order books (DSO Liquidity Solution) so ensures that right from the very start my client exchange software will have a full ...
Amin.Che's user avatar
  • 111
1 vote
0 answers
341 views

Get fees for each transaction in a block without too many API calls

Using Blockchain.info's API, my current approach is to query the endpoint for a block then to collect all the transaction hashes within that block: https://blockchain.info/rawblock/$block_hash Then ...
timothyylim's user avatar
1 vote
0 answers
385 views

Block chain receive payment api not working

I am building a little online app to accept bitcoin payments in my website. I have a blockchain.info wallet and I am following their Receive Payments Api, which can be visited here: http://blockchain....
Ketan Patel's user avatar
1 vote
0 answers
288 views

Bitfinex API -> retrieve funding earnings for custom period

I am trying to retrieve my funding profit of the previous day via the Bitfinex API. But all I find is this API which only returns the profit of the last 30 days summed up (funding_profit_30d): https:...
jan's user avatar
  • 141
1 vote
0 answers
978 views

How can I see the wallet balance using Blockchain Api? C#

Stupid question, but I cant get it So, then I type my wallet adress on blockchain.info I immediately can see my balance, but from my project I can't type something like: WalletAddress wa = new ...
toxic2501's user avatar
1 vote
0 answers
58 views

Optimal way for .NET programmer with no Linux/Python experience to query Blockchain and submit transactions?

I need some advice. What's the best way for a Windows/.NET developer like me to access blockchain information via a REST/RPC API ? The server app I'm building does the following on a fairly regular ...
Festus Martingale's user avatar
1 vote
0 answers
231 views

PHP Coinbase Securing Callbacks

This is example callback verification code in Ruby (https://developers.coinbase.com/docs/wallet/notifications): CALLBACK_DIGEST = OpenSSL::Digest.new("SHA256") def self.verify_callback(body, ...
Eka's user avatar
  • 11
1 vote
0 answers
489 views

BitCoin API C# - can I create transaction, add IO, sign, get hex?

I am using this link as a demonstration of what I want to achieve (see code below). I am not in a position to use node.js now - and I need to use C#. I have looked at the bitcoin.info API My ...
Peter PitLock's user avatar
1 vote
0 answers
519 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 ...
bitcxz's user avatar
  • 11