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MongoDB Atlas runs apps anywhere
Deploy in 115+ regions with the modern database for every enterprise.
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...Checkout 4.x API documentation and migration guide for testing, early feedback and contributions. This is the Ethereum JavaScript API which connects to the Generic JSON-RPC spec. You need to run a local or remote Ethereum node to use this library. Additionally you can set a provider using web3.setProvider() (e.g. WebsocketProvider). We support types within the repo itself. Please open an issue here if you find any wrong types. If you are using create-react-app version >=5 you may run into issues building. ...
Database-free, self-hosted Bitcoin explorer, via RPC to Bitcoin Core
...Optional transaction history for addresses by querying from Electrum-protocol servers (e.g. Electrs, ElectrumX), blockchain, blockchair or blockcypher. Mempool summary, with fee, size, and age breakdowns. See raw JSON content from bitcoind used to generate most pages. Analysis tools for viewing stats on blocks, transactions, and miner activity.
Javascript bitcoin library for node.js and browsers
Bcoin is an advanced fullnode implementation built with JavaScript/C/C++/Node.js. It is easier to use, faster to learn, and more well-documented than competing implementations. Engineered from the ground up to create scalable, flexible, and efficient production-ready systems with unparalleled code readability. Bcoin is consensus-conforming and adheres to the strict security standards of the original implementation maintained by Bitcoin Core. Bcoin can be integrated into almost any desktop or...
PolyCash is the ultimate open source betting system.
Design your new betting currency by choosing a blockchain to run on, a name for your coins and an initial supply. Then create your genesis transaction and import the new coins into your wallet. Next decentralize your currency by installing it on a bunch of different nodes and distributing the coins to any initial investors and stakeholders.
PolyCash makes it easy to create a new cryptocurrency for sports betting or betting on any other topic. You can peg your currency to the dollar, the...
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A cryptocurrency arbitrage opportunity calculator and trading bot. Over 800 currencies and 50 markets. In short, it collects JSON from multiple different cryptocurrency markets, goes through the results, and finds the highest and lowest price for each coin. The script will find the highest price (chbtc.com), and lowest price (Bittrex), and divide the two: 51.8/38.23 = ~1.35 (~35% profit margin) and then push these results to the browser. It will also find the next highest market pairs, e.g. chbtc / jubi is the second-highest pair and chbtc/Bittrex the third, jubi/Bittrex the fourth and so on until every possible combination has been computed. ...