Questions tagged [api]

This tag should be used for questions related to APIs offered by any Bitcoin related service. 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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2answers
185 views

Start and end parameters in historical price data request are ignored

I trying to do some testing on historical coinbase data. Because I can only get 300 datapoints per request. Im looping the request and change the start and end paramter to got backwards. My requests ...
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0answers
32 views

Cryptocurrency Wallet 3rd party access

Do Crypto wallets such as Exodus etc have something like an API? For example is it possible to perform a cryptocurrency transaction directly from the web browser client (using the specified amount and ...
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1answer
697 views

Blockchain.info testnet websocket doesn't work

When I try to connect testnet websocket provided by blockchain.info api. Connection doesn't establish, when i looked into the code. It says for testnet it uses "wss://ws.testnet.blockchain.info/inv" ...
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1answer
1k views

Blockchain Receive Callback API in callback url not working

I want to accept payments with the Blockchain Receive Payments API Using create different user different address on get bitcoin but not work Callback api https://blockchain.info/api/api_receive &...
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2answers
72 views

REST API to fetch block by height

I am trying to incorporate bitcoin in one of the applications and want to integrate the REST API which exposes all the public information. I tried using https://chain.api.btc.com/v3/block/3 but upon ...
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1answer
83 views

How to get info for public address from bitcoin-cli + local db? (Can it be done without creating a wallet?)

I just started running my own full node. IBD is finished, and I'm now learning how to use bitcoin-cli. First I would like to extract all the available information for one or more public addresses ...
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1answer
225 views

Cryptocompare API is not updated

I have created an android app for maintaining the portfolio. I have used the coinmarketcap.com API. This API does not have the data at exchange level. I have tried https://min-api.cryptocompare.com/ ...
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1answer
250 views

Bitcoin Testnet API that allows transaction lookup and submission of raw transactions

I'm looking for a well developed, maintained and stable API allowing to access bitcoin testnet. Something like Infura for Ethereum. Googling gives many results, but can somebody point me out what is ...
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1answer
4k views

Binance API SIGNED GET request error code -1100 on signature parameter

I am trying to load my crypto portfolio into Excel so I can use its easy analysis functionality on my trades. However, I'm having trouble connecting to the API using VBA's WinHttpRequest. I use the ...
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1answer
261 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 ...
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1answer
65 views

Quantifying the long term costs associated with self hosting the Bitcoin node?

In this question I discussed the option of self hosting the Bitcoin node vs. using 3rd party services with API access. I quoted a colleague who said that "for every coin we wish to support, we ...
2
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1answer
42 views

How do you determine whether Bitcoin Core is synced fully or not from the RPC API?

I keep getting the wrong numbers returned daily in the beginning of the day because Bitcoin Core has not yet synced the blockchain from the computer being powered off during the night. So I need a way ...
2
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1answer
104 views

Estimated Fees in BCOIN

I installed a BCOIN full node and I would like to calculate estimated fees for Bitcoin transactions. This functionality works perfectly in the CLI. For example: bcoin-cli fee 3 Anyway things go ...
2
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1answer
149 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/...
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1answer
350 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 ...
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1answer
84 views

Is Bitcoin Core required for wallet projects?

My team wants to create a cryptocurrency service provider platform to Sell/Buy BTC and something else in form of web/mobile app. It's about one month that I have been studying different articles about ...
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0answers
37 views

Getting Error “Not enough funds after fees in 1 inputs to pay for 1 outputs, missing -xxx” with BlockCypher API

I code a C# application, build of the BlockCypher API and NBitcoin. I try to send 5000 Satoshi (f.e.) from my wallet to another. My wallet has an amount of 12709 satoshi as balance. The Request is: {&...
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1answer
51 views

What is the official explorer and value API for Bitcoin?

I am new to cryptocurrency development, and I have noticed that Bitcoin has an official wallet for both Desktop and Mobile (correct me if I am wrong). My question is, does Bitcoin have an official ...
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5answers
7k views

Bitcoin's real-time Buy and Sell price API

What is the API to get Bitcoin's real-time Buy price and sell price on my site? and how can get it from to implement in my website developed in PHP.
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0answers
44 views

How do I fix socket.timeout error when getting data from blockchain.info? [closed]

I'm writing a python script using the blockchain API that takes as input a list of seed addresses, gets their transactions and the input/output addresses of each transaction. Then I get the ...
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1answer
795 views

blockchain.info api (Balance Updates [POST]) confirmations not received

I'm trying to use "Balance Updates [POST] Monitor addresses for received and spent payments" from https://blockchain.info/api/api_receive I subscribe to an address and get the response: { "id": ...
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0answers
65 views

Single API to Get Fee Estimates for All Major Cryptocurrencies? [closed]

Many sites provide estimates of miner/gas fees for individual cryptocurrencies. For example, EtherScan provides gas estimates for ETH. BTC Network provides fee estimates for Bitcoin. Both of these ...
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1answer
41 views

API for automatical buying and selling coins in Java [closed]

I need to create a simple bot for buying and selling coins and the programming language needs to be Java due to some technical specifications. These are the functions which I need from that API: buy(...
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1answer
40 views

How do internet wallets connected to full blockchain nodes

How do internet wallets such as Coinbase connect to the a blockchain node? Doesn’t the node itself create a default wallet object on startup? How is this replaced by internet wallets which hold ...
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0answers
17 views

What is the purpose of the “category” Bitcoin Core RPC API field/property?

When using the Bitcoin Core RPC API to list the transactions, there is a "category" property, which can apparently be either "send" or "receive". Then there's the "...
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1answer
404 views

Bitcoin Pro API - How do you format start/end time for Historic Data?

I don't understand how to format the start and end time per https://docs.pro.coinbase.com/#get-historic-rates The sample time is "1415398768" which makes no intuitive sense to me, and when I tried ...
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1answer
364 views

How Master seed is generated using Bitcore API?

Can someone please explain how to get Master Seed when a new HD keys is created using Bitcore APIs? My purpose is to implement wallet service in my application using Bitcore APIs. Refer this link ...
3
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1answer
266 views

API for large number of queries to different addresses every few minutes

I have an application that needs to makes queries to get address balances and transaction data from Bitcoin. What are some possible solutions to this? It would be great if I didn't have to manage a ...
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3answers
272 views

How to pay no fees?

Is there any API where I can create some addresses and making a transaction beetween them just once a month without paying fees? Or if you can recommend me somewhere with a fee under 5000 satoshis it ...
1
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1answer
145 views

How can I determine the address from a private key?

From the steps in the wiki, take this example private key: 0C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D When I import this into Electrum, I find these values: Address: ...
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1answer
39 views

How to search (via json API) transactions to my wallet?

I'm new to bitcoin and want to take payments with it on my website. Taking payment isn't a problem but the manually process of verifying payments and matching up with users is. Is there any way to use ...
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1answer
73 views

What is the alternative for an exchange which doesnt want to run a node of a coin traded?

It seems to be best practice for an exchange to run a node itself for a coin traded there. But, is there an alternative? A third party service? If yes, which are recommended and why?
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1answer
208 views

How start make a application with php

I'm new with bitcoin, and I would like create a application that have wallets and transactions, but I dont know how start, I was reading the api blockchain.info and is interested use the module that ...
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1answer
86 views

How to get a balance from the network directly?

I was under the impression that I'd be able to get a balance from the network directly, not only by going through some http interface which wraps the server RPCs. I am curious, is it possible to get a ...
1
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3answers
851 views

GDAX Post API not working VB.net

I am having trouble with a (400) bad request on POST requests. I am able to execute all Get and Delete requests with the same signature process, but obviously the body is string.empty. We have tested ...
0
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1answer
31 views

Specification of REST .bin format?

I'm currently using the JSON Rest API to get lots of transaction data from bitcoin. Unfortunately thats quite slow. I know there is also a binary format (see Unauthenticated REST Interface), but I ...
0
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2answers
64 views

What am I missing about this “guaranteed” money-making scheme that I didn't hear from anyone but just popped up in my head?

Let's suppose that I have already set up an account at Exchange A and Exchange B, loaded each up with a small buffer of BTC (much less than 1 BTC), and am able to make API requests to buy/sell from ...
0
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1answer
49 views

Are there any Bitcoin payment providers with an API’s for allowing unconfirmed transactions? [closed]

I want to design my web app to instantly accept crypto currency like Bitcoin as a payment for a subscription to the app. I will design it to cancel the subscription and ban the user’s account if the ...
10
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3answers
18k views

Bittrex API rate limit

Does Bittrex have a limit on how many requests I can do? I cannot find that info in their documentation. I only find their Announcement from 2014 which says: Api requests will be throttled based ...
0
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1answer
294 views

How do I use an issued API key in my python 3 script to bypass the request limiter?

I got an API key from blockchain.info to bypass the request limiter, but I don't know how to use it and I can't find any relevant info online. url = "https://blockchain.info/rawblock/" + str(s) ...
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1answer
49 views

Is the `addmultisignature` API call dependent on order of public keys in the array? Or is it lexicographically sorted?

Say Alice and Bob are part of a partnership business that accepts Bitcoin. They store all their main funds in cold storage until the end of 3 months, when they cash out and use a new address. This ...
2
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1answer
6k 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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4answers
3k views

How can I generate a bitcoin address?

Is there any way to generate bitcoin addresses other than the Blockchain API? (given the fact that it is not public)
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2answers
74 views

How can I build my own get address transactions API?

I want to build an API to query an arbitrary bitcoin address for received transactions. The address is not necessarily associated with my wallet. Is this possible using the commands in bitcoin-cli? I ...
9
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6answers
4k views

Are there any C# wrappers for the Bitcoin REST API?

Are there any C# wappers that take an OOO approach to the Bitcoin REST API, and encapsulate it in an easy to use format?
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2answers
11k views

Simple Address check via API

So I have a wallet with thousands of addresses, I want to know how can I check the blockchain whether or not a transaction has been made to one(or another) of the addresses?
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1answer
398 views

Shorts, longs BTC data

I am trying to use the Bitfinex API to get historic shorts,longs BTC/USD data.So, the Bitfinex gives size data with Available values: '1m', this equals last 2 hours, i need last two month at least. ...
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2answers
77 views

library for validating bitcoin private and public keys

I am building a python script that gets a string and determines if it is a valid bitcoin private key or public key, and if so it returns its type/format (base58, BIP32, HexaDecimal etc.) and its ...
0
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1answer
121 views

API for top bitcoin addresses sorted by available balance [closed]

Is there any API from where I can get the list of top bitcoin addresses sorted by available balance? I know there are many websites out there listing Bitcoin rich list but I need an API.
2
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1answer
914 views

What is the request limit number in the blockchain.info API? [closed]

I'm planning to use https://www.blockchain.com/api, precisely single block https://www.blockchain.com/api/blockchain_api for testing purposes on my script. I noticed there this line on the the API ...

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