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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2
votes
2answers
835 views

Bitcoin and Litecoin wallets with push notification API?

I am working on a project which includes btc and ltc transactions. I need Bitcoin and Litecoin wallets with APIs that could create Push notification on newly received transactions. With API I mean any ...
1
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0answers
285 views

What does MtGox order status mean?

"Your Open Orders" in MtGox lists all of our orders. However, some orders are not open. I sometimes see them as pending. The HTTPv1 API states that there are 6 possible statuses: pending executing ...
5
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2answers
717 views

Is it possible to get ticker of bitcoin.de using an api?

I did not found anything in the site. They have an api? It is for my Android App Bitcoin Paranoid.
3
votes
2answers
1k views

What is the refresh interval of MtGox ticker API?

I'm using the MtGox ticker API (from MtGox API V2) and I want to know the update interval. I think it is less than 3 minutes, but is it possible to know exactly? It is important to me because I'm ...
4
votes
1answer
161 views

What goes in the id/BTCUSD field for Mt. Gox "submit an order" API call?

I am trying to place a new order using Mt. Gox's submit an order API call. However I keep on getting the error object { result: 'error', error: 'Bad API call' } I'm fairly certain I'm doing ...
6
votes
1answer
620 views

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 ...
3
votes
1answer
2k views

How do you get a mtgox api key?

I can't seem to find where to get my MtGox api key. I've been linked to https://mtgox.com/settings/apps-and-api, but all I get is a blank page in the "Access" section. Do I need to verify my account ...
2
votes
0answers
1k views

bitcoind 400 bad request - what's wrong with this code?

As per this code sample, I'm attempting to make a .net httpwebrequest from my local machine to a local bitcoind -daemon server. However, I'm only receiving a 400 bad request at webRequest.GetResponse()...
3
votes
1answer
244 views

Custom filter for mtgox depth api request

I am looking at mtgox api documentation and specifically at Multi Currency depth http://data.mtgox.com/api/1/BTCUSD/depth/fetch It returns back the list of asks and bids and a filter criteria like ...
8
votes
1answer
2k views

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', '...
-1
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1answer
691 views

Bitcoin Transaction Scripts

Could someone explain to me how the bitcoin transaction scripts work?How to build custom scripts? Also please explain the data structure of transactions as specified by the bitcoin protocol? How to ...
3
votes
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 ...
8
votes
5answers
3k views

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 ...
3
votes
1answer
215 views

What is the easiest way to "listen" to the network?

If I want to automatically check up on payments and ensure they are not double spends and check the confirmation count, what is the easiest way to do so?
4
votes
1answer
394 views

What server-side Bitcoin clients are available to serve information?

I have been toying around with the idea of building a bitcoin app. My research has thus far led me to conclude that it makes sense to run a bitcoin client daemon on my server in order to provide an ...
3
votes
2answers
754 views

Is there any useful documentation on using the MtGox API with node.js?

I have been looking for some help building a platform using node that works with the MtGox api. It seems easy to make request, but I am confused about how to pass a parameter. Right now my code ...
7
votes
3answers
2k views

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 ...
3
votes
2answers
835 views

blockchain.info JSON API problem

I'm trying to get the time series for a specific period from Blockchain but the JSON seems to not be there anymore. Does anyone know if the JSON API is not available anymore or it is a temporary issue?...
2
votes
1answer
464 views

In ListReceivedByAddress, what is the meaning of Confirmations if the address is reused?

The API ListReceivedByAddress allows me to view a list a sum* of all the transactions that an address has received. This returns an array listing the sum of what was sent. If the address is reused ...
2
votes
0answers
311 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 ...
10
votes
6answers
5k 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?
6
votes
1answer
304 views

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.
6
votes
1answer
785 views

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 ...
5
votes
2answers
6k views

Bitcoin API - How can I identify new incoming payments?

Good afternoon, I am struggling a bit to receive Bitcoin payments at my online store. So far, I have installed bitcoind in my system and created a set of receiving addresses, and now I face the ...
3
votes
1answer
2k views

Blockchain.info Receive Payments API problem

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....
4
votes
1answer
2k views

What are midstate and hash1 used for in mining?

The first answer here does a good job explaining how the SHA-256 function requires more than one input (an initial one is specified by to the SHA-256 specs). As far as I understand it, the "midstate" ...
7
votes
1answer
8k views

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 ...
3
votes
1answer
1k views

Javascript widget that shows the balance of a particular address

Is there an embeddable javascript widget (perhaps using blockchain.info API) that can show information about a specific Bitcoin address? Like current balance, total incoming, outgoing, and latest ...
12
votes
4answers
9k views

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.
6
votes
2answers
474 views

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 ...
4
votes
1answer
1k views

How to return Bitcoins to sender through Bitcoin API?

I want to get information about the creator of a given transaction through Bitcoin API. More specifically, any or all addresses they sent their Bitcoins from, so I can return some of the money back. ...
4
votes
1answer
310 views

How to force bitcoind to include a specific transaction as an input of another transaction?

I would want to force bitcoind to include a specific transaction as an input of another transaction. This is so as to prevent people front wanting to launch a double-spend attack on the website. The ...
8
votes
1answer
440 views

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 ...
3
votes
1answer
642 views

Using the Bitcoin API, how can I see the sending address?

https://en.bitcoin.it/wiki/Original_Bitcoin_client/API_Calls_list I have a transaction and I want to see what addresses the inputs came from. How can I do that?
5
votes
1answer
3k views

Monitor all transactions on bitcoin network - API

I am searching for a solution to monitor all bitcoin transactions (or for first ties at least for addresses inside my bitcoin client). I found http://blockchain.info/api_websocket is this really ...
9
votes
1answer
595 views

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?
4
votes
1answer
775 views

Will calling "walletpassphrase" twice in a short amount of time increase the time the wallet stays unlocked?

The Bitcoin API call for walletpassphrase allows one to open the wallet for a set amount of time. If one calls it again while the wallet is still unlocked, we get an error of 'Error: Wallet is already ...
3
votes
1answer
378 views

Bitcoind statistics

I need to get some values to find how updated my bitcoind client is. For example, I would like the GUI to tell me: If it is up to date. If not, show blocks/total blocks How many blocks have been ...
1
vote
2answers
137 views

Proper getmemorypool data endianness?

As there are a couple endiannesses used by Bitcoin, what is the proper way to encode the data parameter for a getmemorypool JSON API call?
3
votes
3answers
1k views

Automating service with income from VISA and expenses in Bitcoins

Open-org.com is building an online service, which will have income coming from VISA cards, and will pay expenses in Bitcoins. We expect to make something like 100 transactions per day from credit ...
4
votes
1answer
209 views

API calls - "not yet implemented"?

I tried sending some commands to my Bitcoin-QT running on Mac, and when I called "encryptwallet", I got this response: Not Yet Implemented: use GUI to encrypt wallet, not RPC command What API calls ...

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