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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1answer
66 views

listreceivedbyaddress missing transactions after restore

After restoring wallet from wallet.dat balance is identical, but listreceivedbyaddress 0 do not have the transactions associated with wallet. listunspent 0 show all the transactions, but it will ...
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2answers
130 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 ...
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2answers
461 views

Specified data directory does not exist - but it does…

anyone ever had a similar issue where the directory exists but bitcoin-cli isn't recognizing it? Perhaps this is related to me setting the folder up as a symlink to my external HDD? Thank you! ...
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2answers
217 views

API for multiple blockchains

Is there an API to get data for multiple blockchains? Most blockchain explorers already offer an API but I'd like to be able to get information for different blockchains through the same API.
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2answers
3k views

Reading Bitcoin Raw Transaction

I want to understand Bitcoin data structure. So i try to understand a raw transaction in json format. When i checked the blockchain.info API documentation, i see that input structure is defined for ...
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2answers
2k views

How do I use Blockchain.info's Receive Payments API with node JS / Express?

Blockchain has great documentation for PHP, but nothing really for node! Does anyone here have any projects,where they used the blockchain.info Receive Payments API, in their node apps, to receive ...
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1answer
73 views

Api to automatically check the status of a BTC transaction

My team is working for a community of members who make donations in BTC to support a cause from time to time. The donations the details are stored in a database and displayed on their personal ...
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1answer
48 views

How can I pull the “Candles” argument from the Huobi websocket data?

I've a problem with Huobi Websocket, I know my ways in REST API but new to asyncio and websockets, and Huobi only gives resonable amount of history through websocket request so I'm stuck with it. I'm ...
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0answers
27 views

Rate limits Bitcoin Core JSON-RPC

I am trying to brute force using Burp Suite to create wallets in Bitcoin Core with random strings(size:5) containing special characters. Context: https://github.com/bitcoin/bitcoin/issues/21510 ...
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3answers
6k views

huobi.com API to get latest trade price, bids and asks?

I'm looking for a simple API description to get some basic stats from the huobi.com exchange. Mainly the last trading price, and current orderbook (bids & asks). They seem to have an API: http://...
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1answer
244 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 = json_decode(...
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0answers
19 views

Is there an API that accepts a transaction id/hash as an input, and returns all inputs and outputs for that transaction?

I'm looking for an API that accepts a tx id/hash as an input and returns all the inputs and outputs associated with that transaction hash. For example, the transaction described at https://www....
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1answer
383 views

how to place a bitforex api buy order

I have read the documentation for BitForex on placing a buy order here: https://github.com/bitforexapi/API_Doc_en/wiki/Order Then after understanding that, I read the API Call Description ...
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1answer
279 views

Bittrex API market history — interpreting OrderType

The Bittrex API has a request to get the market history: https://bittrex.com/api/v1.1/public/getmarkethistory?market=BTC-DOGE which gives a response containing the following fields: "Id" "TimeStamp"...
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1answer
479 views

Kucoin API buy and sell

Why, when I using Kucoin API, get_tick, for market info, I see, that sell is bigger buy? Example from oficcial API Documentation: With a symbol param { "coinType": "KCS", "trading": true, ...
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3answers
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 ...
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1answer
429 views

What is the right method to calculate Relative Strength Index (RSI) for incoming real time data? [closed]

I am working on a trading bot that computes values for several indicators including the RSI. I subscribe to real time minute-level market data from an exchanges, and as new data arrives, I get the ...
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1answer
333 views

Get wallet address when creating wallet with blockchain API

Using the API endpoint http://localhost:3000/api/v2/create I get this response: {"guid":"58671a54-7d60-4319-8742-b06fb2a8d060","address":"...
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1answer
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....
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2answers
35 views

How could I make my own API to query the blockchain

I'm looking to access transaction history for some specific coins directly from the blockchain. The main reason is that most of current API are not free or don't provide information for the coins I ...
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1answer
76 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 ...
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1answer
2k views

How to send Bitcoin in the Testnet?

I'm using this library: https://github.com/lian/bitcoin-ruby And here's my code: require 'open-uri' require 'net/http' require 'net/https' require 'json' require 'bitcoin' Bitcoin.network = :...
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1answer
777 views

Signature for this request is not valid

im testing the binance api but cant get over the signature problem can u spot a mistake on my signature?: const crypted = CryptoJs.HmacSHA256("timestamp=" + new Date().getTime().toString() + "&...
2
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1answer
412 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 ...
1
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4answers
751 views

Single API Platform for multiple cryptocurrency?

I am wondering for a single API platform where i will be able to trade for below 5 crypto currency : 1) Bitcoin 2) Litecoin 3) Ethereum 4) Dash 5) Monero So, are you guys supporting all these in 1 ...
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2answers
708 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?
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1answer
317 views

Blockchain.info Payment API -> Callback gets a 302?

I want to integrate the Blockchain.info Payment API and everything works fine so far. The callback works and triggers the code on my server, if a payment comes in. But if I check the callback log of ...
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1answer
714 views

Blockchain.info and fetching transactions for a address between dates

I'm trying to fetch transactions for a certain bitcoin address, but I only need to fetch transactions within a specific date range. Now, I had a look at the blockchain.info api and it seems like the ...
0
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1answer
317 views

testnet.blockchain.info api not showing latest results?

I sent a transaction to the testnet address mzWCWQU6phb9rKSAiQ4FBU92sGYtY7tjPH a few days ago and I have been using the testnet.blockchain.info api for a while now in my project. It was working fine ...
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2answers
244 views

Bitcoin Transaction using API with Custom Fees

I want to transfer Bitcoin from one individual address to another using API. But I want to set Transaction fees as per my requirement. So How can I do it ? Right now I am using blockchain-transaction ...
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1answer
159 views

Calculate fees with Blocktrail/btc.com SDK

First of all hi and thanks for your support and your time. I want to calculate the fees of a blocktrail transaction with blocktrail SDK, before making the transaction, in order to let the recipient ...
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0answers
14 views

Locally Sign transactions Blockcypher API

I'm having a problem that I can't solve since yesterday with the blockCypher APIs when I try to create a new transaction and submit it. https://www.blockcypher.com/dev/bitcoin/?shell#creating-...
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0answers
11 views

Free Api To Get the total Market Caps

I'm looking for a Free API to get the market caps of Bitcoin. There was a previous question about it. However the documentation those endpoint are only to paid plans? How can I get the total market ...
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1answer
210 views

Is there an API with which I could obtain the exchange rate of bitcoin to dollar some time in the past by giving the desired time as parameter?

I would also like the the result to be precise to hour (or minute). It is for a java program. I have looked around, but the service I have found could not satisfy my need: http://www.coindesk.com/...
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0answers
21 views

Tracking transactions on different wallets. Coinbase

How to track each transaction to each wallet that creating for users in website? when i am trying to get data from all transactions i am getting information that includes only global coinbase account ...
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2answers
162 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
28 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 ...
0
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1answer
688 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
62 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 ...
1
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1answer
53 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 ...
0
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1answer
224 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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0answers
282 views

Binance API Error Code: “code”: -1022, “msg”: “Signature for this request is not valid.”

I have a problem with the Binance API. I use HTTP request from Integromat, but I always get the following error message: "code": -1022, "msg": "Signature for this request is ...
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1answer
225 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 ...
0
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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 ...
2
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1answer
217 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 ...
0
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1answer
64 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
41 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
103 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
148 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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