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#npm-package
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Build cross-browser extensions with native HMR and zero-config setup
Example React Component, Published to npm
To ensure the identification and traceability of real products throughout the supply chain, this project is the first to propose a fully functional blockchain system to prevent product counterfeiting.
A toolkit to help developers optimize gas usage in Ethereum smart contracts and transactions.
Lightweight, Modern Multicall3 Typescript Library
A utility library for simplifying common Web3 tasks like generating wallets.
A comprehensive collection of more than 16000 crypto-currency icons (4000+ coins) with various sizes.
Complete node.js client for 1Broker API, open sourced by @telebroker_bot for Telegram!
TonUtils: TS/JS library with alternative connections to TON APIs, making blockchain interactions easier.
Open contract-facing SDK for payable routes and gateway-backed integrations. Thin public surface for authorize, checkout, and session flows.
A library for 1inch v4 DeFi aggregator API.
🎯 A compact React component and npm package enabling quick website search through a modal, triggered by pressing Command + K
useful react hooks to manage any function component lifecycle
A Zero Dependency, Typescript-First, Bun-Native Dice Notation and Rolling Engine
📦 A full-stack starter template with React & Hardhat to develop, deploy, and test Solidity smart contracts on the FEVM network.
A library targeting for 0x DeFi aggregator API.
An NPM module containing all of the core functionality to run any OIP front end.
Java script sdk for creating and verifying dids, diddocs, verifiable credentials and verifiable presentations.
@polkadot/ui-identicon for React Native
Seamlessly integrate with DeFi's more popular platforms using 🔧🛠 dais-web3.js
Build your digital legacy. A new era of social proof, and discovery of content.
📸 Creates a snapshot of any ERC20 token in JSON or CSV format.
A TypeScript library for reading and interacting with Bitcoin data on Starknet.
Shipstone VetKey (internal Cargo Crate and NPM Package)
JS module to resolve claimant predicates to flat-most possible representation at a given claim-at date.
TypeScript SDK designed to facilitate interaction with Blockscout v2, the open-source blockchain explorer for EVM-compatible chains. As part of the EVM Explorer ecosystem, this SDK empowers developers to seamlessly access and analyze on-chain data.
React Reward Button is a customizable React component that sends Ethereum token rewards on click. It integrates seamlessly with the Reown Wallet Provider, making it ideal for dApps, onboarding flows, or incentivized Web3 actions.
Plugin for Hardhat to generate ABI files
Nesthers is a convenient integration of the ethers.js library for NestJS
A simple Context provider and component in order to manage different IC wallets in the browser.
Testcontainers Module for NodeJS to run Foundry Anvil for integration tests
Plug-and-play components to deploy and tokenize media + IP anywhere.
A powerful, cross-platform CLI for modern development workflows. Create projects, manage dependencies, analyze codebases, and streamline your development process with intelligent automation.
Integrate crypto payments into your React applications with PayWithMetaMaskButton by Leumas Tech. Perfect for eCommerce and microservices. Accept ETH, BTC, USDT directly to your wallet. Learn more at Leumas Tech.
A package that helps a developer to use any blockchain network in their project and create decentralised application. A JavaScript API to connect with the JSON-RPC of Ethereum and Solana network.
A small utility class for parsing, validating and converting ethereum addresses
Automatic micro-donations powered by x402. Drop-in Express/Next.js middleware that sends USDC to charities on every user action. npm install x402charity.
A stacks native sdk for sending micro payments and tipping on the stacks blockchain
Solidity contract and project scanner for MegaETH. Catches dual gas model issues, volatile opcode throttling, EVM incompatibilities, and deprecated dependencies before deployment.
Gas estimator for MegaETH. Shows dual gas costs (compute + storage), compares MegaETH vs Ethereum L1. Critical: MegaETH minimum gas is 60,000, not 21,000.
JS decorator to simplify interactions with MetaMask chrome extension
Safe, pure-JS drop-in replacement for bigint-buffer. Fixes CVE-2025-3194 (CVSS 7.5). Zero dependencies, no native bindings.
Simple npm package to get token price on Subgraph
Client library to onboard users to web3 apps
Plugin for Hardhat to generate merged smart contracts in Solidity
📦 A full-stack starter template with React & Hardhat to develop, deploy, and test Solidity smart contracts on the Mantle network.
An npm package containing types and constants that are commonly reused in regarding to Coretime
Official JS SDK for AgentShield — Smart contract security protocol for autonomous AI agents. Verify contracts, monitor wallets, block threats.
Core part of mybucks.online crypto wallet, involving hashing, private key generation and generating/parsing transfer-wallet token.
Arbitrum wallet management skill for openclaw agents — create wallets, query balances, send ETH, sign messages
Cross-chain payment SDK for Avalanche implementing HTTP 402 Payment Required. Send payments on Chain A, verify them on Chain B — powered by Avalanche Teleporter.
A lightweight TypeScript-first Node.js SDK for wrapping REST APIs
TypeScript SDK for Clicker game on Stacks blockchain
TypeScript SDK for Coin Flip game on Stacks blockchain
TypeScript SDK for Dice Roll game on Stacks blockchain
TypeScript SDK for Number Guess smart contract on Stacks
TypeScript SDK for StacksPix smart contract interactions
TypeScript SDK for Vote Battle smart contract on Stacks
TypeScript SDK for Celo Clicker smart contract
TypeScript SDK for Vote Battle on Celo blockchain
a dashboard for reporting the sync state and health of go-ethereum (geth) and prysm
Web3 error toolkit -- 770+ patterns with structured classification, severity & suggestions. Zero deps.
Official TypeScript/JavaScript SDK for PEPTOMA — AI peptide analysis, community peer-review, and Solana tokenomics.