A pure and powerful JavaScript library for Bitcoin.

Bitcoin is a powerful new peer-to-peer platform for the next generation of financial technology. The decentralized nature of the Bitcoin network allows for highly resilient bitcoin infrastructure, and the developer community needs reliable, open-source tools to implement bitcoin apps and services. Bitcore JavaScript Library provides a reliable API for JavaScript apps that need to interface with Bitcoin.

Clone the Bitcore monorepo and npm install:

git clone https://github.com/bitpay/bitcore.git
npm install

cd into bitcore-lib repository:

cd packages/bitcore-lib

To build a bitcore-lib full bundle for the browser:

gulp browser

This will generate files named bitcore-lib.js and bitcore-lib.min.js.

npm test

You can also run just the Node.js tests with gulp test:node, just the browser tests with gulp test:browser or create a test coverage report (you can open coverage/lcov-report/index.html to visualize it) with gulp coverage.

• Addresses
• Using Different Networks
• Private Keys and Public Keys
• Hierarchically-derived Private and Public Keys

• Using Different Units
• Acknowledging and Requesting Payments: Bitcoin URIs
• The Transaction Class
• Unspent Transaction Output Class

• Scripts
• Block

• Crypto
• Encoding

• Browser Builds

Some functionality is implemented as a module that can be installed separately:

• Peer to Peer Networking
• Bitcoin Core JSON-RPC
• Payment Channels
• Mnemonics
• Elliptical Curve Integrated Encryption Scheme
• Blockchain Explorers
• Signed Messages

• Generate a random address
• Generate a address from a SHA256 hash
• Import an address via WIF
• Create a Transaction
• Sign a Bitcoin message
• Verify a Bitcoin message
• Create an OP RETURN transaction
• Create a 2-of-3 multisig P2SH address
• Spend from a 2-of-2 multisig P2SH address

We're using the Bitcore JavaScript Library in production, as are many others, but please use common sense when doing anything related to finances! We take no responsibility for your implementation decisions.

If you find a security issue, please email security@bitpay.com.

See CONTRIBUTING.md on the main bitcore repo for information about how to contribute.

Code released under the MIT license.

Copyright 2013-2022 BitPay, Inc. Bitcore is a trademark maintained by BitPay, Inc.