JSPM

BIP32 Hierarchal Deterministic Node operations.

The SHA2 family hash functions and HMAC functions for ethers.

Logger utility functions for ethers.

Contract abstraction meta-class for ethers.

Common Ethereum constants used for ethers.

Network definitions for ethers.

Wallet management utilities for KeyStore and Crowdsale JSON wallets.

Solidity coder for non-standard (tight) packing.

Recursive-Length Prefix (RLP) coder.

A tool for processing JSON-RPC messages

Elliptic curve library functions for the secp256k1 curve.

Ethereum JavaScript API

Base-X without Buffer.

Random utility functions for ethers.

Word lists for BIP39 wallets.

The PBKDF2 password-pbased key derivation function for ethers.

A JavaScript Ethereum provider that connects to the wallet over a stream

A simple module for generating ENS namehashes per spec https://github.com/ethereum/EIPs/issues/137

A small toolset for streaming JSON-RPC data and matching requests and responses

A collection of React hooks for integrating Web3-Onboard in to React and Next.js projects. Web3-Onboard makes it simple to connect Ethereum hardware and software wallets to your dapp. Features standardised spec compliant web3 providers for all supported w

Create an Ethereum provider using a JSON-RPC engine or middleware

Web3-Onboard makes it simple to connect Ethereum hardware and software wallets to your dapp. Features standardized spec compliant web3 providers for all supported wallets, framework agnostic modern javascript UI with code splitting, CSS customization, mul

Polling Controller is the base for controllers that polling by networkClientId

Mocha reporter which shows gas used per unit test.

Provides scaffolding for controllers as well a communication system for all controllers

A collection of utilities for MetaMask Snaps

A library containing the core functionality for building MetaMask Snaps

Provides an interface to the currently selected network via a MetaMask-compatible provider object

EVM tooling used for coin integrations & app bindings

Logs errors to an error reporting service such as Sentry

Defines a CAIP-25 based endowment permission and helpers for interfacing with it

Multichain network controller

Collection of Safe singleton deployments

Design tokens to be used throughout MetaMask products

Periodically calculates gas fee estimates based on various gas limits as well as other data displayed on transaction confirm screens

A simple node module that exports the [Ethereum ABI](1) for [ERC 20](2) compatible tokens.

A module for getting method signature info from an ethereum method signature.

foundryup

Backup and rehydrate SRP(s) using social login and password

Snap sandbox environments for executing SES javascript

Controllers for MetaMask Snaps

Multicoin address validator for Bitcoin and other Altcoins.

Mediates access to JSON-RPC methods, used to interact with pieces of the MetaMask stack, via middleware for json-rpc-engine

Manages New MetaMask decentralized Notification system

Shims required for ethers in constrained environments.

Maintains a periodically updated list of approved and unapproved website origins

MetaMask example snap demonstrating preinstalled Snaps

Collection of Safe modules contract deployments

SDK that facilitates the interaction with the Safe Transaction Service API

common utilities to access and format responses from auth network

Manages internal accounts

Manages a list of recipient addresses associated with nicknames

Stores transactions alongside their periodically updated statuses and manages interactions such as approval and cancellation

Provides an interface to the currently selected networkClientId for a given domain

SDK that facilitates the interaction with Safe Smart Accounts

Manages requests that require user approval

Controllers which manage interactions involving ERC-20, ERC-721, and ERC-1155 tokens (including NFTs)

Processes signing requests in order to sign arbitrary and typed data

Controller to group account together based on some pre-defined rules

Manages bridge-related status fetching functionality for MetaMask

This package is responsible for getting transactions from our Bitcoin and Solana snaps

JSON-RPC methods and middleware to support the MetaMask Multichain API

Experimental libraries for ethers. These should not be considered stable.

Types for use with the Safe Core SDK packages

The profile sync helps developers synchronize data across multiple clients and devices in a privacy-preserving way. All data saved in the user storage database is encrypted client-side to preserve privacy. The user storage provides a modular design, givin

Service to manage multichain accounts

Manages logging data to assist users and support staff

Data and convenience functions shared by multiple packages

MetaMask Snaps JSON-RPC method implementations

Type definitions for the Snowbridge parachain

Stores identities seen in the wallet and manages interactions such as signing

Manages user-configurable settings for MetaMask

Manages bridge-related quote fetching functionality for MetaMask

The RemoteFeatureFlagController manages the retrieval and caching of remote feature flags

Utilities for building MetaMask applications

The MetaMask Node module template

Manages state for earning features and coordinates interactions between staking services, SDK integrations, and other controllers to enable users to participate in various earning opportunities

Design System React Native

highlight.js syntax definition for Ethereum's Solidity language

Stores and suggests names for values such as Ethereum addresses

An ENS interface module built on EthJS.

@trezor/connect plugin for Ethereum

Creates user operations and manages their life cycle

Manages in-app announcements

Manages token search and discovery through the Portfolio API

Manages delegations for MetaMask

Manages requests that for app metadata

Stores and manages interactions with signing requests

Consolidates the state from multiple controllers into one

Funkit core SDK provides feature-rich and extensible smart wallets built on account abstraction

Implements the JSON-RPC methods for managing permissions as referenced in EIP-2255 and MIP-2 and inspired by MIP-5, but supporting chain-agnostic permission caveats in alignment with @metamask/multichain-api-middleware

Maps ENS names to their resolved addresses by chain id

Contains logic for rate-limiting API endpoints by requesting origin

Controller with middleware for logging requests and responses to restricted and permissions-related methods

A history of deployments of the Delegation Framework

Provides an interface to the currently enabled network using a MetaMask-compatible provider object

Javascript library for fetching trusted token pricing data from Redstone data ecosystem

Design System Tailwind CSS preset for MetaMask projects

Design System twrnc Preset

Ethereum multisig contract

Techincal Indicators written in javascript

A simple module for generating ENS namehashes per spec https://github.com/ethereum/EIPs/issues/137

Collection of platform-agnostic modules for creating secure data models for cryptocurrency wallets

Hardware Wallet support for ethers.

Design system react ui components

A type-safe message bus library

Embed script for Torus

Coinbase Pro API for Node.js, written in TypeScript and covered by tests.

Web3-Onboard makes it simple to connect Ethereum hardware and software wallets to your dapp. Features standardised spec compliant web3 providers for all supported wallets, framework agnostic modern javascript UI with code splitting, CSS customization, mul

Safe Core SDK Utilities

Utilities for decoding and encoding Hedera Hashgraph transactions for hethers.

WalletConnect SDK module for connecting to Web3-Onboard. Web3-Onboard makes it simple to connect Ethereum hardware and software wallets to your dapp. Features standardised spec compliant web3 providers for all supported wallets, framework agnostic modern

An Abstract Class for describing an Hedera Hashgraph Signer for hethers.

ABIs mapped to versions of the Delegation Framework contracts

The Delegation Toolkit built on top of Viem - a library for interacting with DeleGator Smart Accounts

Wallet address validator for Bitcoin and other Altcoins.

Injected wallet module for connecting browser extension and mobile wallets to Web3-Onboard. Web3-Onboard makes it simple to connect Ethereum hardware and software wallets to your dapp. Features standardised spec compliant web3 providers for all supported

Web3 client extended with Alchemy and browser provider integration.

Biconomy Client SDK types

Common Ethereum constants used for ethers.

Elliptic curve library functions for the secp256k1 curve.

Node Client that comminucates with indexer service to fetch necessary details for the Smart Account

Network definitions for ethers.

Recursive-Length Prefix (RLP) coder.

Bytes utility functions for ethers.

An Abstract Class for desribing an Ethereum Signer for ethers.

Utility fucntions for managing web requests for ethers.

Solidity contract visualisation tool.

Logger utility functions for ethers.

An Abstract Class for describing an Ethereum Provider for ethers.

Utilities for handling Ethereum Addresses for ethers.

Utilities for decoding and encoding Ethereum transaction for ethers.

Coinbase SDK wallet module for connecting to Web3-Onboard. Web3-Onboard makes it simple to connect Ethereum hardware and software wallets to your dapp. Features standardised spec compliant web3 providers for all supported wallets, framework agnostic moder

Hash utility functions for Ethereum.

CoinPayments is a cloud wallet solution that offers an easy way to integrate a checkout system for numerous cryptocurrencies. Coinpayments now also offers coin conversion via Shapeshift.io.

Minimal utilties to make working with the delegation framework easier

Contract abstraction meta-class for hethers.

Network definitions for hethers.

A tiny library to work with Substrate and Ethereum addresses and do some more

Logger utility functions for hethers.

Utilities and Classes for parsing, formatting and managing Ethereum ABIs.

BigNumber library used in ethers.js.

Properties utility functions for ethers.

String utility functions.

The keccak256 hash function for ethers.

Classes for managing, encrypting and decrypting ECDSA private keys as a Signer for hethers.

Unit conversion functions for Hedera Hashgraph.

BIP32 Hierarchal Deterministic Node operations.

Wallet management utilities for KeyStore

Maintains a periodically updated list of approved and unapproved website origins

An Abstract Class for describing an Hedera Hashgraph Provider for hethers.

Hedera Hashgraph Providers for hethers.

Creates user operations and manages their life cycle

Veramo KMS implementation that provides Ed25519 and secp256k1 crypto

A CLI for developing MetaMask Snaps

Stores and suggests names for values such as Ethereum addresses

Polling Controller is the base for controllers that polling by networkClientId

The profile sync helps developers synchronize data across multiple clients and devices in a privacy-preserving way. All data saved in the user storage database is encrypted client-side to preserve privacy. The user storage provides a modular design, givin

Controllers which manage interactions involving ERC-20, ERC-721, and ERC-1155 tokens (including NFTs)

Simplify dApp creation

Stores identities seen in the wallet and manages interactions such as signing

Singleton factory used by Safe related contracts

The smart contracts which make up the Synthetix system. (synthetix.io)

A tool for processing JSON-RPC messages

A Webpack plugin to build MetaMask Snaps with Webpack

Umbrella package for most common Hethers libraries.

Utilities for handling EVM Addresses for hethers.

Common EVM & Hedera Hashgraph constants used for hethers.

BTC Markets API Client for Node.JS

Manages logging data to assist users and support staff

Manages New MetaMask decentralized Notification system

Stores transactions alongside their periodically updated statuses and manages interactions such as approval and cancellation

Data and convenience functions shared by multiple packages

Manages user-configurable settings for MetaMask

Create an Ethereum provider using a JSON-RPC engine or middleware

Utilities for building MetaMask applications

Safe module for connecting to Web3-Onboard. Web3-Onboard makes it simple to connect Ethereum hardware and software wallets to your dapp. Features standardised spec compliant web3 providers for all supported wallets, framework agnostic modern javascript UI

Provides an interface to the currently selected networkClientId for a given domain

Manages in-app announcements

Periodically calculates gas fee estimates based on various gas limits as well as other data displayed on transaction confirm screens

SDK for Safe Smart Accounts with support for ERC-4337 and Relay

Stores and manages interactions with signing requests

Mediates access to JSON-RPC methods, used to interact with pieces of the MetaMask stack, via middleware for json-rpc-engine

Maps ENS names to their resolved addresses by chain id

Manages bridge-related quote fetching functionality for MetaMask

Ledger hardware wallet module for connecting to Web3-Onboard. Web3-Onboard makes it simple to connect Ethereum hardware and software wallets to your dapp. Features standardized spec compliant web3 providers for all supported wallets, framework agnostic mo

Manages requests that require user approval

Controller with middleware for logging requests and responses to restricted and permissions-related methods

Manages state for earning features and coordinates interactions between staking services, SDK integrations, and other controllers to enable users to participate in various earning opportunities

Processes signing requests in order to sign arbitrary and typed data

Contains logic for rate-limiting API endpoints by requesting origin

Manages internal accounts

Consolidates the state from multiple controllers into one

Multichain network controller

Provides scaffolding for controllers as well a communication system for all controllers

Sample package to illustrate best practices for controllers

Defines a CAIP-25 based endowment permission and helpers for interfacing with it

Typescript port of web3.js

A Jest preset for end-to-end testing MetaMask Snaps, including a Jest environment, and a set of Jest matchers

Provides an interface to the currently selected network via a MetaMask-compatible provider object

A library for interfacing with ckETH.

Web3-Onboard makes it simple to connect Ethereum hardware and software wallets to your dapp. Features standardised spec compliant web3 providers for all supported wallets, framework agnostic modern javascript UI with code splitting, CSS customization, mul

Logs errors to an error reporting service such as Sentry

Manages token search and discovery through the Portfolio API

Implements the JSON-RPC methods for managing permissions as referenced in EIP-2255 and MIP-2 and inspired by MIP-5, but supporting chain-agnostic permission caveats in alignment with @metamask/multichain-api-middleware

Service to manage multichain accounts

JSON-RPC methods and middleware to support the MetaMask Multichain API

Backup and rehydrate SRP(s) using social login and password

Manages a list of recipient addresses associated with nicknames

A small toolset for streaming JSON-RPC data and matching requests and responses

This package is responsible for getting transactions from our Bitcoin and Solana snaps

MetaMask SDK wallet module for connecting to Web3-Onboard. Web3-Onboard makes it simple to connect Ethereum hardware and software wallets to your dapp. Features standardised spec compliant web3 providers for all supported wallets, framework agnostic moder

A type-safe message bus library

Multicoin address validator for Bitcoin and other Altcoins ported to TypeScript.

Manages bridge-related status fetching functionality for MetaMask

The SHA2 family hash functions and HMAC functions for ethers.

Manages delegations for MetaMask

The RemoteFeatureFlagController manages the retrieval and caching of remote feature flags

Veramo ethr-did based identity controller plugin.

Controller to group account together based on some pre-defined rules

foundryup

A simulation framework for MetaMask Snaps, enabling headless testing of Snaps in a controlled environment

Trust Wallet SDK wallet module for connecting to Web3-Onboard. Web3-Onboard makes it simple to connect Ethereum hardware and software wallets to your dapp. Features standardized spec compliant web3 providers for all supported wallets, framework agnostic m

Manages requests that for app metadata

Singleton factory used by Safe related contracts

Ledger Hardware Wallet Ethereum Application API

Rango Exchange Basic SDK for dApps

Rango Exchange SDK for dApps

Trezor hardware wallet module for connecting to Web3-Onboard. Web3-Onboard makes it simple to connect Ethereum hardware and software wallets to your dapp. Features standardised spec compliant web3 providers for all supported wallets, framework agnostic mo

Collection of smart contracts for the Realitio fact verification platform

Ledger EVM Coin integration

Ledger signer for ethers v6.

Provides an interface to the currently enabled network using a MetaMask-compatible provider object

Ethereum multisig contract

A collection of Vue Composables for integrating Web3-Onboard in to a Vue or Nuxt project. Web3-Onboard makes it simple to connect Ethereum hardware and software wallets to your dapp. Features standardized spec compliant web3 providers for all supported wa

SDK that provides the basic tools to interact with the Safe Smart Account.

Biconomy Bundler package to interact with any bundler node as per ERC4337 standard

Tools for handling questions in the reality.eth fact verification platform

Provide easy conversion between crypto symbol and name

Crypto address validator for Bitcoin and other Altcoins, forked to be used with typescript

XinFin XDC Network JavaScript API

ASM libraries and tools for the Ethereum EVM.

Torus SDK wallet module for connecting to Web3-Onboard. Web3-Onboard makes it simple to connect Ethereum hardware and software wallets to your dapp. Features standardized spec compliant web3 providers for all supported wallets, framework agnostic modern j

Infinity Wallet SDK wallet module for connecting to Web3-Onboard. Web3-Onboard makes it simple to connect Ethereum hardware and software wallets to your dapp. Features standardized spec compliant web3 providers for all supported wallets, framework agnosti

Sequence is the smartest Web3 wallet. Easy, fun and secure.

Taho SDK wallet module for connecting to Web3-Onboard. Web3-Onboard makes it simple to connect Ethereum hardware and software wallets to your dapp. Features standardised spec compliant web3 providers for all supported wallets, framework agnostic modern ja

Package for the LSP17 Contract Extension standard

bitget-wallet SDK wallet module for connecting to Web3-Onboard. Web3-Onboard makes it simple to connect Ethereum hardware and software wallets to your dapp. Features standardized spec compliant web3 providers for all supported wallets, framework agnostic

Javascript library for fetching trusted token pricing data from Redstone data ecosystem

Biconomy Paymaster to interact with Paymaster Services that interacts with ( veriying and token ) paymasters