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Return of the oracles: Band Protocol, API3 and DIA price soar to new highs

Oracle tokens gain traction as cross-chain interoperability and new developments in the DeFi sector lure investors away from Bitcoin and NFTs. Nonfungible tokens (NFTs) have been the talk of the town over the past few months, but as the start of the second quarter gets underway for the global financial markets, it possible that traders may start looking for opportunities in other parts of the crypto market. Oracle projects are one sub-sector that has been making moves over the past few weeks as some traders shift their focus away from NFTs. BAND/USDT vs. API3/USDT vs. DIA/USDT 1-day chart. Source: TradingViewAs…

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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-transactions i have to sign locally but their php or cURL code don't work (they give me several problems) I searched the internet but found nothing suitable. many signing tools found online tell me to enter a message in addition to the private key, what message should I enter? does not refer to any messages here: # next, you sign the data returned in the tosign array locally # any ECDSA secp256k1 signing tool should…

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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 cap for Bitcoin by day?

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Coinbase API create new address returns 404 “not found”

I am trying to create a new address for my Coinbase account to try putting some coins in it with my application. I am using .Net core for accessing the Coinbase endpoint. I have tried both creating requests manually and using the NuGet package "Coinbase", for casual requests like fetching user data, changing user data (nickname) everything is working fine (so the error is not in bad request creation or similar) except when I want to create a new address for putting some crypto in it. It returns not found. Also I tried fetching the list of addresses and it…

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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 using their [sdk](https://github.com/HuobiRDCenter/huobi_Python. I managed to figure this out: from huobi.client.market import MarketClient from huobi.client.market import CandlestickInterval import pandas as pd from pandas import DataFrame as df def callback(candlestick_req: "CandlestickReq"): Candles = candlestick_req.data Market_client = MarketClient() Market_client.req_candlestick("btcusdt", CandlestickInterval.MIN60, callback, from_ts_second = 1611788400, end_ts_second = 1614812400) History_dataframe_new["Date"] = [Candles[f].id for f in range(len(Candles))] History_dataframe_new["Open"] = [Candles[f].open for f in range(len(Candles))] History_dataframe_new["High"] = [Candles[f].high for f…

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Huboi websocket data pull

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 managed to figure this out: from huobi.client.market import MarketClient from huobi.client.market import CandlestickInterval import pandas as pd from pandas import DataFrame as df def callback(candlestick_req: "CandlestickReq"): Candles = candlestick_req.data Market_client = MarketClient() Market_client.req_candlestick("btcusdt", CandlestickInterval.MIN60, callback, from_ts_second = 1611788400, end_ts_second = 1614812400) History_dataframe_new["Date"] = [Candles[f].id for f in range(len(Candles))] History_dataframe_new["Open"] = [Candles[f].open for f in range(len(Candles))] History_dataframe_new["High"] = [Candles[f].high for f in range(len(Candles))] History_dataframe_new["Low"] =…

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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 id and nothing about that this transaction was to user wallet id: 'id from', type: 'send', status: 'completed', amount: { amount: '0.00100000', currency: 'BTC' }, description: null, created_at: '2021-03-25T21:46:10Z', updated_at: '2021-03-25T21:46:10Z', resource: 'transaction', resource_path: '/v2/accounts/globalAccountId/transactions/idFrom', instant_exchange: false, network: { status: 'confirmed', status_description: null, hash: 'hash', transaction_url: 'https://blockchain.info/tx/hash' },

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how to identify transactions to wallet that i have created for user in coinbase

i am creating project with bitcoin balance, i have tried to use coinbase api there i can create different wallet addresses for each user on my website, but i cant figure out how can i define transaction to this wallet if in api client.getTransactions all data was written only with global account id id: 'id from', type: 'send', status: 'completed', amount: { amount: '0.00100000', currency: 'BTC' }, description: null, created_at: '2021-03-25T21:46:10Z', updated_at: '2021-03-25T21:46:10Z', resource: 'transaction', resource_path: '/v2/accounts/globalAccountId/transactions/idFrom', instant_exchange: false, network: { status: 'confirmed', status_description: null, hash: 'hash', transaction_url: 'https://blockchain.info/tx/hash' },

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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 public/private keys) with an html form or something similar?

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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 multiple requests, it starts to error out with message "Do not abuse the api". Kindly provide the reference to API which I can use Note: Tried https://testnet.blockexplorer.com/api as well but doesnt work. Even the link on https://github.com/blockchain/api-v1-client-python#request-limits-and-api-keys leads to error page on web

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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 from the downloaded blockchain. For the most part 1, I have not been able to find a way to do this that does not require creating a wallet. For example, if I run % bitcoin-cli getaddressinfo 1XPTgDRhN8RFnzniWCddobD9iKZatrvH4 ...I get an error message that says error code: -18 error message: No wallet is loaded. Load a wallet using loadwallet or create a new one with createwallet.…

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BFX Function – Bringing market data to your spreadsheets

We know that fast and accurate market data is one crucial aspect of trading, especially for Algorithmic traders and high-frequency traders. That’s why we made our market data accessible for the public through the Bitfinex APIs.  We’ve developed BFX Function for you, to showcase how Bitfinex market data can be used to bring data to your Excel spreadsheet, and be adapted to your own needs. BFX Function is an add-in that uses custom functions to retrieve specific bits of data you want into Excel spreadsheets. It works by parsing market data from the API into a familiar table structure on…

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Can i (an onlineshop) accept EU or SOFORT bank transfer but receive bitcoins (ie a “exchange-as-you-buy” via exchange-provided bank account)?

Currently i only accept Bitcoin but i want to offer customers a bank account to pay into or some kind of shop-integrated form (maybe even SOFORT/klarna) so they don't have to buy Bitcoins at an exchange before paying me. Is there any exchange or service the offers this or anything that makes the customer experience as easy as possible without them knowing anything about bitcoins and only having a bank account? I highly appreciate any suggestion, Thanks!

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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 cold storage is in a single address. Both Alice and Bob have full nodes, running Bitcoin Core. They use the console feature to generate a 2-of-2 P2SH multisig address, using addmultisignature. They exchange each other's public keys, and input them as arguments. If Alice used the following syntax: addmultisignature 2 '[<alice's key>,<bob's key>]' and Bob used: addmultisignature 2 '[<bob's key>,<alice's key>]' Will…

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Issue validating message with bitcoinjs-message module

I am building a private blockchain in node.js to practice the concepts and coding of blockchain technology. To add a block with data, the user requests a message to be signed by sending his/her Bitcoin wallet address. The app returns the message to be signed, which includes the address received. The user then signs the message with their wallet (Bitcoin Core / Electrum). Now, they can request the submission of the data and thus the addition of a new block to the chain. The chain is a chain of stars, and the application keeps tracks of stars observed by the…

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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 do not want to rely on a third party service like blockchain.com Though a public code library would be fine.

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Frissíti a MetaMask a felhasználói licenszet, egyes felhasználóknak fizetniük kell

A MetaMask bejelentette, hogy frissítette egyes termékei használati engedélyét, így lehetnek olyan felhasználók, akiknek a jövőben valamilyen mértékű díjat kell fizetniük.  Sajnos az életben semmi sincs ingyen, erre újabb példa lehet a MetaMask szolgáltatásai. A cég sajtóközleményében bejelentette, hogy habár frissítette termékei licencét, az nem lesz hatással a végfelhasználókra, az alkalmazásfejlesztők nagy részére, illetve a nonprofit szervezetekre. A társaság állítása szerint ezen felhasználóknak továbbra sem kell fizetniük. A társaság azt nyilatkozta, hogy a pénztárca szolgáltató API közzétételét folytatni fogja a nyilvános szférában, biztosítva ezzel az alkalmazások széles körben kompatibilis ökoszisztémáját. Hozzátette, hogy továbbra is elkötelezett lesz az összes kód közzétételében.…

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Crypto Pro Portfolio Tracker Gets a Major Update

Crypto Pro app has extended its Apple device support and is now available on Mac, iPhone, iPad, and Apple Watch. What is Crypto Pro? Crypto Pro tracks cryptocurrency prices in real-time and displays interactive charts with indicators. Users can also read the latest crypto news, set custom price alerts, and monitor their portfolios with performance statistics. The feature-rich toolkit also includes exchange API connections, cryptocurrency wallet import via public keys, customizable widgets, Siri shortcuts, FaceID & TouchID lock, currency conversion calculator, and more. The app focuses on putting user privacy first. It does not ask nor collect any personal information.…

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