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 get an address's balance with the bitcoin client?
I want to see the balance of some address using bitcoind.
I set txindex=1 and did a -reindex to get all transactions indexed.
But still, there doesn't seem to be a way to get balances of an address. ...
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votes
2
answers
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How do I use walletnotify?
I have bitcoin daemon and I want to use the walletnotify option with a json-rpc call. Some of the examples use a "transaction.sh" file for walletnotify. What is it for?
What do I have to write in ...
- 501
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votes
5
answers
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How to build a bitcoin trading bot
I'd like to experiment with bitcoin technology, crypto currency, and encryption. I thought the best way to accomplish that is building my very own bitcoin trading bot.
It seems like a daunting task, ...
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4
answers
43k
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Anyone know of an API I can get historical price time series for multiple coins
I'd like to build some historical price charts, to use in my cryptocoin portfolio tracking app, using time series data (with HighCharts js).
Anyone know of an API that provides this price data, ...
- 461
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14
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What are the most comprehensive APIs for cryptocurrency market data?
I'm looking for a well documented, easy to use API that provides data on the majority of cryptocurrencies. That data should include the 1 hr, 24hr, and 7 day price changes, as well as the entire ...
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votes
6
answers
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List of blockchain explorer APIs? [closed]
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 ...
- 1,031
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votes
4
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Need authoritative source for historic Bitcoin conversion prices from all exchanges
What are the authoritative sources for historic Bitcoin prices?
Ideally this will be an API for all major exchanges.
- 12.7k
11
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3
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7k
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How to estimate optimal fees for transaction in bitcoind?
As I understand, with the network congestion it's sometimes advisable to set a higher fee to process a transaction within a block or two. Is there some way to estimate the optimal fee through calls to ...
- 43k
11
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4
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21k
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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 ...
- 265
11
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6
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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?
- 12.7k
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3
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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 ...
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4
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Does a full Bitcoin API reference exist with examples?
I know that all Bitcoin API methods are listed on the wiki: https://en.bitcoin.it/wiki/Original_Bitcoin_client/API_calls_list. However, some of the methods are very poorly documented.
F.e. the ...
- 11.8k
9
votes
1
answer
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Importprivkey's "label" - is it the same as an account?
The "importprivkey" API call allows one to import a private key and save it with a label. Is the "label" in the API call synonymous with an account used in the wallet?
- 43k
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votes
5
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3k
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Is there a remote, trustless bitcoin API that doesn't require anything (blockchain/SPV headers) to be stored locally?
This question asks about how to work with bitcoin via an API without requiring a local blockchain. The only answer is about blockchain.info's JSON API, but it appears that unlike the web version of ...
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API for converting currency such as Euro/USD to BTC
Basically what I'm looking for is a reliable API that allows for the conversion of an imputed currency amount such as USD/Euro amount and a conversion would be made that would convert the amount to ...
- 91
8
votes
1
answer
2k
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Parameters for buy order on BTC-E
Using the BTC-E API 'm getting an error of You incorrectly entered one of fields. when I post this as the data in a buy order.
{'pair': 'btc_usd', 'amount': 0.1, 'rate': 44.7084704, 'type': 'buy', '...
- 364
8
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3
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Checking/polling a balance of an address in Electrum via the command line/RPC
Suppose, I've dynamically -- via the command line/RPC -- created an address or payment_query in Electrum. And saved its details in a database along with the amount of bitcoins I expect to receive.
...
- 81
8
votes
1
answer
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Is there an API for price estimation?
I need to display at my website what a certain amount of Bitcoins will likely cost. I can fetch the latest price using the MtGox API and multiply it by the amount, but for large amounts this is ...
- 1,967
8
votes
3
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4k
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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 ...
8
votes
0
answers
2k
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Is there a Bitcoin equivalent to Infura? [closed]
I was wondering if there's some service for Bitcoin that is equivalent to
https://infura.io/
All I could find similar so far is blockcypher, but it appears to require fees while infura doesn't seem ...
- 81
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3
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How to know when a payment has been received by bitcoind?
I want to create a website which involves the creation of a new single-use address that a user would send bitcoins to. I'd like to know programmatically when the user has sent bitcoins to the address ...
- 205
7
votes
2
answers
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Where can I find an overview of Bitcoin exchange APIs?
Where can I find information on a large number of "exchange" or "trading platform" APIs showing which currencies (digital and fiat) they convert between?
- 71
7
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2
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3k
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Calculating address balance
Is there some method how you can calculate the balance of an address without resorting to web-based API's? When I import a private key the rescanning of bitcoind takes hours. I know to get a balance ...
- 1,967
7
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1
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2k
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Self-hosted Bitcoin wallet for Linux with API?
I'm looking for some Bitcoin wallet software I can host locally on my Linux server that provides either an API or webhooks for detecting when Bitcoin transactions have completed. I also need a way to ...
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2
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2k
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How to get the Input Address from vin where only a txid is given (Insight-Api)
I like to find the Input Address and Amount for a vin like this:
"vin": [
{
"txid": "e3f0e88ce224d342a0189c1b9d2fd488d8bda2f303dbe1e1dbbaa5f51d9f4a53",
"vout": 1,
"...
- 113
7
votes
1
answer
8k
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How can I find the sender's address from the transaction hash? [duplicate]
Possible Duplicate:
How to findout the sender of a transaction
I am trying to use blockchain.info API to receive a payment and store the sender's address. However, the API only indicates the ...
- 854
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votes
2
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7k
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Bitstamp order book history
The current state of Bitstamps order book is available here:
https://www.bitstamp.net/api/order_book/
I want to analyze the history of the order book.
Do someone know if its available?
- 71
6
votes
3
answers
22k
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Anyone know of an API for RSI and other indicators? [closed]
I am looking for Relative Strenght Index and other market indicators API's for cryptos. I don't think TradingView provides one but maybe you know one?
- 161
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1
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How Do HD Wallets Keep Track of all accounts?
If a HD Wallet generates 1,000 accounts for example.
How would they keep track of all of the account's balances, if someone for example, paid into the 455th account, they would want to update the ...
- 672
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Are there any clients that allow for multiple wallets and API acccess?
I know that multibit has the capacity to have multiple wallets, but no API access. bitcoind has great API access, but only one wallet. Is there any solution that combines the two?
- 2,819
6
votes
5
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8k
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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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1
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what is the Volume and BaseVolume reported from bittrex API?
For example in https://bittrex.com/api/v1.1/public/getmarketsummaries or if you subscribe to the ws feed you get sent the following type thing.
{
"MarketName": "BTC-ANS",
"High": 0.0031,
"Low": ...
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votes
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BitFinex API call returns 400 bad request
Trying to get authentication with BitFinex to work. Docs here: https://www.bitfinex.com/pages/api
Say the client wants to make a request to POST
https://api.bitfinex.com/v1/order/new
...
- 223
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votes
2
answers
476
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Is there a Trading API that spans multiple independent sites, preferably from open source websites?
To experiment a little with automatic trading I'm looking for a trading api (like mtgox has) which is used on multiple independent websites so that if one goes under that I then don't have to redo my ...
6
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4
answers
8k
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Is there an API that exchanges USD to Bitcoin?
I'm looking for an API that literally exchanges USD to Bitcoin, not only value.
I've been looking all over for an exchange that accepts USD in it's API.
I've found tons that will do Crypto => Crypto ...
- 61
6
votes
1
answer
10k
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Find all used addresses using xpub key
I currently use a Ledger wallet and find it a hassle to plug it in every time I want to check my balance.
I have access to my master xpub key, how would I find out all the addresses corresponding to ...
6
votes
1
answer
308
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Alternative clients and the Bitcoin API
Which of the alternative clients support any/some/all of the standard API calls? I am looking for a possible alternative client to replace Bitcoind on my server.
- 43k
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1
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Understanding Kraken Trades API (market/limit)
I want to build historical OHLC data from the Kraken trades. Since Kraken does not provide historical OHLC data (at least not going far back), they recommend one builds it oneself using the list of ...
- 161
6
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1
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What is the difference between a market and limit property in the MTGox API?
I'm using the MTGox API to get data about historic trades.
When I run https://mtgox.com/api/1/BTCGBP/public/trades?since={trade_id}, I get the latest 500 trades since that {trade_id}.
Now I have for ...
- 63
6
votes
1
answer
635
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How does the reference bitcoin wallet/client handle rejected transactions? (in the API)
I'm working on writing a wrapper for the standard bitcoin client. I'll be communicating with it via the JSON-RPC API and I'm just wondering if anyone has any experience with this;
this app is mostly ...
- 63
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votes
2
answers
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How to know balance in Ledger Nano S?
Ledger wallets have a single static address where to send BTC to, but when looking at the details of the transactions, it is always recorded as different receiving addresses. Looking up the static ...
- 161
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1
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How are double spends and "dropped" transactions represented in BlockChain.info API
I am currently using BlockChain.info's API to do payment verification with, but have a few questions.
How I am using it (I think I am using it in the right way....):
I am issuing a new/clean address ...
- 243
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votes
3
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Historical BTC data in JSON
As of now, the only API I can find that serves historical data is https://blockchain.info/charts/market-price?timespan=60days&format=json. It only uses USD, and I need to serve non-USD data. My ...
5
votes
3
answers
4k
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Where can i get all the commands with descriptions for Bitcoind on my linux server?
Just installed bitcoind on my server and wanted to find a cheat sheet for the bitcoind commands. Where would i find them with a description and example of what each command does?
- 11k
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How are Fees Charged at Kraken?
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 ...
- 1,672
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2
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2k
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Bitcoin Cash testnet version of insight API
I was wondering if anyone know a testnet version of Insight API for Bitcoin Cash?
For mainnet there are those:
https://bch-insight.bitpay.com/api/
https://bch-bitcore2.trezor.io/api/
But I cannot ...
- 51
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2
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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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1
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Get invoice amount from payment request - LND REST API
I'm using the REST API of my LN node to generate and pay invoices. I would like to know how to get the invoice amount/value in sats from the payment request I receive.
I found this : https://api....
5
votes
1
answer
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In the Ardor API, how can one return more than 100 results from an API call?
Currently the Ardor API, limits results of 100 at a time. Is there a way to return more than 100 results using the api calls?
- 11k
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votes
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Fees for bitcoind sendmany, limits for number of end addresses
I have two questions, both about sendmany.
First, is there any limit on how much transactions can I send with sendmany? (Apart from bash's limit with maximal parameter length.) Is sending about 500 ...
- 2,685