JSPM

The full stack toolkit to build onchain app UX.

Base58Check encoding

The full stack toolkit to build onchain app UX.

node.js SDK for Tangany Wallet as a Service API

Strict DER signature encoding/decoding.

An open-source frontend for the Insight API. The Insight API provides you with a convenient, powerful and simple way to query and broadcast data on the bitcoin network and build your own services with it.

A BIP32 compatible library

Plisio API nodejs library

A pure and powerful JavaScript Bitcoin library.

Professional Node.js & JavaScript SDK for Binance REST APIs & WebSockets, with TypeScript & end-to-end tests.

Node reference library for Bitfinex API - Modernized Fork

buda.com REST API wrapper using Bluebird promises

bitcoin OP codes

BitGo API proxy conforming to bitcoind JSON-RPC API

Official Vezgo JS SDK for the Browser & NodeJS

Construct Merkle Trees and verify proofs

A Node.js client for the phoenixd Lightning API

encode/decode value as bitcoin OP_PUSHDATA integer

Official Wealthica JS SDK for the Browser & NodeJS

JavaScript SDK for ICON

Big integers.

Elliptic curve cryptography, which uses keybase/bn for bignums

Bitcoin Cash cashaddr address format support for Node.js and web browsers.

bitcoinjs-message

Common API wrapper for multiple crypto currency exchanges

Bitcoin Cash general purpose address translation.

TypeScript library for Bitcoin apps.

Client-side Bitcoin JavaScript library

Elliptic curve cryptography

A Node.js library for the Bitpay Bitcoin API

Defines the chain codes used for different unspent types and methods to calculate bitcoin transaction sizes

BitGo JavaScript SDK

A developer-friendly API for integrating with the Cashtab browser extension

bitcoin.co.id API Client for Node.JS

Bitcoin BIP32 hierarchical deterministic keys

Client-side Bitcoin-like JavaScript library

Crypto currencies exchanges api implementation using typescript and rxjs

A light weight universal JavaScript base58 encoder / decoder.

Crockford base-32 checksum encoding

Validate any Bitcoin address - P2WSH, P2WPKH, P2SH, P2PKH - Mainnet & Testnet

Base32 encoding / decoding of bitcoin cash addresses

Pure JavaScript implementation of the scrypt key deriviation function that is fully compatible with Node.js and the browser.

A wrapper for the Multichain JSON-RPC api that parses your input.

Client-side Bitcoin JavaScript library

coinspot.com.au API client for node.js

Melis Javascript API bindings

Fork of ecpair with BitGo specific changes

A library for interacting with BitMEX's websocket API.

The full stack toolkit to build onchain app UX.

Auto-generated Bitcoin client library for bitcoind JSON-RPC API

A performance conscious library for merkle root and tree calculations.

NPM package module for Mempool APIs.

CryptAPI's Library for NodeJS

Node.js wrapper for local and remote Bisq API endpoints

A set of utilities for working with BIP47 and bitcoinjs-lib

CryptoCompare API library

bitcoin-api-light is a bitcoin light-client nodejs module using Blockchain.info and Blockcyphers API to do three simple calls a minimal bitcoin wallet application needs to work

Model Context Protocol server providing access to Tatum's comprehensive blockchain API across 130+ networks with 13 tools

Complete & robust Node.js SDK for Gate.io's REST APIs, WebSockets & WebSocket APIs, with TypeScript declarations.

Bech32(m) encoding for byte buffers

BitGo JavaScript SDK

Library for encoding ECDSA private keys to PEM, DER and raw hex formats

AskExperts SDK: build and use AI experts - ask them questions and pay with bitcoin on an open protocol

Nodejs API wrapper for OKEX exchange

API Interface for coinex.com Bitcoin Cash exchange.

A TypeScript SDK for interacting with the SatsTerminal ecosystem.

Library exposing methods for the creation and consumption of Bitcoin transactions pertaining to Babylon's Bitcoin Staking protocol.

api for coinmarketcap

An open-source frontend for the Segwit2x Insight API. The Insight API provides you with a convenient, powerful and simple way to query and broadcast data on the bitcoin network and build your own services with it.

The chain agnostic tool to enable authentication for AppKit applications.

Reactive primitives for Bitcoin apps.

MCP server for accessing cryptocurrency prices using Coinpaprika API

onename API node JS library

API Bittrex - asynchronous node.js library for the Bittrex API https://bittrex.com/

Client-side Bitcoin JavaScript library

The full stack toolkit to build onchain app UX.

Wallet address validator for Bitcoin and other Altcoins.

A pure and powerful JavaScript Bitcoin Cash library.

Tradingview instant stocks API, indicator alerts, trading bot, and more !

btc-e.com API client for node.js

Forked for Lick Hunter, Complete & robust node.js SDK for Bybit's REST APIs and WebSockets v5, with TypeScript & integration tests.

React primitives for Bitcoin apps.

TypeScript SDK for LNMarkets API v2

coloredcoinsd api wraper

Library exposing methods for the creation and consumption of Bitcoin transactions pertaining to Babylon's Bitcoin Staking protocol.

A TypeScript library for Bitcoin transaction management, based on Bitcoin Descriptors for defining inputs and outputs. It facilitates optimal UTXO selection and transaction size calculation.

bitcoincharts.com API client for node.js

Multicoin address validator for Bitcoin and other altcoins.

A client for regtest bitcoin usage. Requires regtest-server from bitcoinjs github.

BitHive Relayer API

Audited & minimal library for Bitcoin. Handle transactions, Schnorr, Taproot, UTXO & PSBT

JavaScript component for crypto currency specific information.

simple currency conversion cli

Node reference library for Bitfinex API. Modified to make sequential requests to avoid nonce-errors.

A bitcoin block explorer and API.

The full stack toolkit to build onchain app UX.

A Javascript API client for Independent Reserve's API.

A pure and powerful JavaScript Litecoin library.

Create and parse crypto currency addresses and wallet import formats.

A tiny Node.js wrapper for the BitPay Rates API

Simple API to stream Interledger payments between BTC, ETH, DAI and XRP

Read-only API client for coinspot.com.au

Library for interacting with Biscoint API

Lightning Accounts Server

Lightspark JS SDK

Get the current Bitcoin value

JavaScript component for private keys, public keys, and addresess for crypto currencies such as Bitcoin, Litecoin, and Dogecoin

Handle private key and public keys associated with elliptic curve cryptography. Used with crypto currencies such as Bitcoin, Litecoin, Dogecoin, etc. Works in both Node.js and the browser.

Kraken API client for REST and WebSocket API

The full stack toolkit to build onchain app UX.

A BIP68 relative lock-time encoding library.

The full stack toolkit to build onchain app UX.

Complete & robust node.js client for Bybit's REST APIs and WebSockets, with TypeScript & integration tests.

Node.js/typescript connector for FTX's REST APIs and WebSockets

Complete & robust Node.js SDK for OKX's REST APIs and WebSockets, with TypeScript & end-to-end tests.

Transaction and message parsers for Phantom Wallet SDK

Defines the chain codes used for different unspent types and methods to calculate bitcoin transaction sizes

Node JS Module interface with the Mining Rig Rentals API V2 easily

Electrum protocol client for Node.js

nodejs interface for QuadrigaCX bitcoin exchange

The full stack toolkit to build onchain app UX.

cryptsy.com API client for node.js

TypeScript types for AIBTC

Simple TypeScript Bitso API Wrapper for Public and Private end points. [](https://github.com/amircp/bitso-ts/blob/master/LICENSE) ## Installation

A transaction input selection module for bitcoin.

Simple API to stream Interledger payments between BTC, ETH, DAI and XRP

Complete cgminer API implementation for Node.js with multi-version support, response validation, and integration tests

node.js module to access the blockchain websocket api

JavaScript full support of kraken API

Format strings or numbers to currency strings.

Lightspark JS SDK

Client-side Bitcoin JavaScript library

Bitcoin BIP44 constants.

TypeScript type definitions for BMAP API

SLP & Bitcoin Cash cashaddr address format support for Node.js and web browsers.

Bitcoin Cash OP codes

Bitcoin Cash and SLP general purpose address translation.

A library for interacting with BitMEX's websocket API.

A set of icons for all the main cryptocurrencies and altcoins, in a range of styles and sizes

A component for shapeshift.io crypto currency API.

Convert crypto to fiat and vice-versa instantly.

Simple library to access the Kraken Exchange API

Base 58 encoding / decoding

API library for BitEscrow.

encode/decode value as bitcoin OP_PUSHDATA integer

Utilities for building ordinals with BitGo utxo-lib

NodeJS client for btcd WebSocket API

This library parses and creates Bitcoin Miniscript Descriptors and generates Partially Signed Bitcoin Transactions (PSBTs). It provides PSBT finalizers and signers for single-signature, BIP32 and Hardware Wallets.

A BIP65 absolute lock-time encoding library.

A modern Bitcoin Core REST and RPC client.

Blockchain.info payment api module

Wallet address validator for BTC, TRX, ETH, USDT (ERC20, TRC20), HOGE, SFM, SMARS

NodeJS Client Library for the BleuTrade Exchange (BleuTrade.com) API

A javascript wrapper for accessing amberdata's public API.

Node.js implementation of lnurl

The Hashgraph Online Standards SDK provides a complete implementation of the Hashgraph Consensus Standards (HCS), giving developers all the tools needed to build applications on Hedera.

paxful API wrapper for NodeJS

Bitcoin Miniscript, a high-level language for describing Bitcoin spending conditions. It includes a Policy and Miniscript compiler, as well as a novel Satisfier for generating expressive witness scripts.

Backup Generator for BlockTrail's Developer Friendly API binding for NodeJS

A module to check bitcoin policy: SCRIPT_VERIFY_MINIMALDATA

BL3P API

NodeJS client library with Promises for the bitcoin.de Trading API v2

CoinMarketCap plugin for ElizaOS - Get real-time cryptocurrency prices

BIP39 Mnemonics implemented for Bitcore.

Tiny client library for Esplora-based Bitcoin APIs

Collection of helpful building blocks and tools to develop Bitcoin Lightning web apps

BittrexRx is a rxjs node wrapper for the Bittrex Api

A JavaScript / TypeScript / Python / C# / PHP cryptocurrency trading library with support for 130+ exchanges

kraken.com API client library for Node.js

Professional Bitcoin trading strategy backtesting framework with institutional-grade architecture

The official Node.js client for CEX.IO Prime Liquidity API

Node.js client for the btc-e API

Convert Satoshi <-> Bitcoin

SDK for signing Partially Signed Bitcoin Transactions (PSBTs) using Fireblocks

a simple cryptocompare api

Client for bitcore-wallet-service

A JavaScript / TypeScript / Python / C# / PHP cryptocurrency trading library with support for 100+ exchanges

A service for Mutisig HD Bitcoin Wallets

Model Context Protocol server providing access to Tatum's comprehensive blockchain API across 130+ networks with 13 tools

Easily retreive information about transactions and addresses from any insight api explorer

Exodus Bitcoin BIP44 constants.

A tiny zero-dependency library to format coins, primarily for crypto, with broader applications as well.

BTC-E Trading API

NodeJS Client Library for the Localbitcoins API

BlockBee's Library for NodeJS

BIP38 is a standard process to encrypt Bitcoin and crypto currency private keys that is impervious to brute force attacks thus protecting the user.

A pure and powerful JavaScript Bitcoin SV (BSV) library.

Embed apps within Sphinx

NodeJS wrapper over the API of OKCoin, Chinese Bitcoin exchange

Revolutionary n8n node that replaces entire workflow chains. Consolidate 10-15 nodes into one with 55+ JavaScript libraries including comprehensive crypto & blockchain support, full workflow context access, and zero external dependencies. The node that ta

OP_NET AssemblyScript transform

The full stack toolkit to build onchain app UX.

Manage ordinals, inscriptions and runes using scure-btc-signer

An application programming interface (API) to interact with D-Gate payment contract on Binance Smart Chain using Ethers.js

Cryptocurrency CLI lets you monitor cryptocurrencies in your portfolio and track your earnings through the command line. It uses the coinmarketcap.com API to fetch crypto data.

Bitcoin BIP32 hierarchical deterministic keys

Easily connect with the IDEX Datastream API

The @airgap/coinlib-core is a protocol agnostic library to prepare, sign and broadcast cryptocurrency transactions.

Command-line utility for BitGo UTXO transactions

Communicate with bitcoind via JSON-RPC

Browser-friendly ripemd160 hasher

A BIP68 relative lock-time encoding library.

Utilities for building ordinals with BitGo utxo-lib

A BIP21 compatible URL encoding utility library

Embed apps within Sphinx

Interaction helper for your Lightning Network daemon

A JS implementation of the Auth47 protocol

A tiny Node.js wrapper for the Blockchain Exchange Rates API

A JavaScript / Python / PHP cryptocurrency trading library with support for 100+ exchanges

NPM Package for LNBits.com API.

Type definitions for WebLN

Bitcoin Smart Contract Runtime

An open-source frontend for the Insight API. The Insight API provides you with a convenient, powerful and simple way to query and broadcast data on the bitcoin network and build your own services with it.

Simple module to query the CoinDesk Bitcoin Price Index API

Stampery API for NodeJS: seamlessly integrate the blockchain-powered, industrial-scale certification platform into your NodeJS apps.

A blockchain indexing node with extended capabilities using bitcore

The full stack toolkit to build onchain app UX.

A library for interfacing with ckBTC.

Bitcoin Core API client for Node.js

Fast Wallet address validator for Bitcoin and other Altcoins.

Unofficial Poloniex API client, with public/private methods and push.

The definitive collection of badges for rendering

Common library for OP_NET.

More than your typical logger. Why not bring style to your logs? The OPNet Logger library allows you to create and style logs for your OPNet applications. Written in TypeScript!

An MCP-compatible service that provides real-time asset prices including precious metals, cryptocurrencies, and more

JavaScript component for crypto currency specific information.

eCash cashaddr address format support for Node.js and web browsers.

nodejs API for Etherium Blockchain

A BIP21 compatible URL encoding utility library

Client-side Bitcoin JavaScript library

A wrapper over bitstamps api

Coingate package

A JavaScript / TypeScript / Python / C# / PHP cryptocurrency trading library with support for 130+ exchanges

An extended wrapper of the FTX API package

The @reown/appkit-experimental package provides a set of cutting-edge, experimental features for Web3 developers. This package serves as a testing ground for innovative concepts and implementations that are not yet widely adopted or standardized in the bl

The @airgap/serializer provides serializers used in AirGap applications.

LocalBitcoins API wrapper for NodeJS

The Kraken Exchange API for Node.js

A test suite and interface you can use to implement standard Bitcoin blockchain API calls for various backends and platforms.

An Insight API Client

coinspot.com.au API client for node.js

A basic library for working with Tapscript, signatures and Bitcoin transactions.

poloniex.com API client library for Node.js

[](https://www.npmjs.com/package/bitcoin-conversion)

A collections of nodes to interact with the CryptoCompare API services.

A modern suite of cryptography tools, built for the plebian developer.