JSPM

Recursive-Length Prefix (RLP) coder.

Common Ethereum constants used for ethers.

Contract abstraction meta-class for ethers.

Network definitions for ethers.

Elliptic curve library functions for the secp256k1 curve.

Wallet management utilities for KeyStore and Crowdsale JSON wallets.

Solidity coder for non-standard (tight) packing.

Base-X without Buffer.

Random utility functions for ethers.

A tool for processing JSON-RPC messages

Word lists for BIP39 wallets.

The PBKDF2 password-pbased key derivation function for ethers.

Ethereum JavaScript API

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

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

A collection of utilities for MetaMask Snaps

Mocha reporter which shows gas used per unit test.

Polling Controller is the base for controllers that polling by networkClientId

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

A library containing the core functionality for building MetaMask Snaps

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

Logs errors to an error reporting service such as Sentry

EVM tooling used for coin integrations & app bindings

Design tokens to be used throughout MetaMask products

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

Multichain network controller

Collection of Safe singleton deployments

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

foundryup

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

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

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

Shims required for ethers in constrained environments.

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

Manages internal accounts

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

SDK that facilitates the interaction with Safe Smart Accounts

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

Controllers for MetaMask Snaps

Processes signing requests in order to sign arbitrary and typed data

Multicoin address validator for Bitcoin and other Altcoins.

SDK that facilitates the interaction with the Safe Transaction Service API

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

Manages bridge-related status fetching functionality for MetaMask

Snap sandbox environments for executing SES javascript

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

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

Collection of Safe modules contract deployments

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

Manages New MetaMask decentralized Notification system

Maintains a periodically updated list of approved and unapproved website origins

Data and convenience functions shared by multiple packages

MetaMask example snap demonstrating preinstalled Snaps

Types for use with the Safe Core SDK packages

Manages a list of recipient addresses associated with nicknames

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

Service to manage multichain accounts

common utilities to access and format responses from auth network

Manages requests that require user approval

MetaMask Snaps JSON-RPC method implementations

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

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

Manages logging data to assist users and support staff

Manages bridge-related quote fetching functionality for MetaMask

The RemoteFeatureFlagController manages the retrieval and caching of remote feature flags

Manages user-configurable settings for MetaMask

Utilities for building MetaMask applications

The MetaMask Node module template

Type definitions for the Snowbridge parachain

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

Manages token search and discovery through the Portfolio API

Manages requests that for app metadata

Stores and suggests names for values such as Ethereum addresses

Consolidates the state from multiple controllers into one

highlight.js syntax definition for Ethereum's Solidity language

An ENS interface module built on EthJS.

@trezor/connect plugin for Ethereum

Creates user operations and manages their life cycle

Manages in-app announcements

Stores and manages interactions with signing requests

Manages delegations for MetaMask

A history of deployments of the Delegation Framework

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

Design System twrnc Preset

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

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

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

Design System Tailwind CSS preset for MetaMask projects

Design system react ui components

Ethereum multisig contract

Techincal Indicators written in javascript

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

Hardware Wallet support for ethers.

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

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

Utilities for decoding and encoding Hedera Hashgraph transactions for hethers.

Safe Core SDK Utilities

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.

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

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.

Web3 client extended with Alchemy and browser provider integration.

Common Ethereum constants used for ethers.

Elliptic curve library functions for the secp256k1 curve.

Biconomy Client SDK types

Solidity contract visualisation tool.

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

Network definitions for ethers.

Recursive-Length Prefix (RLP) coder.

Network definitions for hethers.

Bytes utility functions for ethers.

An Abstract Class for desribing an Ethereum Signer for ethers.

Utility fucntions for managing web requests for ethers.

Logger utility functions for ethers.

An Abstract Class for describing an Ethereum Provider for ethers.

Utilities for handling Ethereum Addresses for ethers.

Minimal utilties to make working with the delegation framework easier

Utilities for decoding and encoding Ethereum transaction for ethers.

Logger utility functions for hethers.

Contract abstraction meta-class for hethers.

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

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.

Hedera Hashgraph Providers for hethers.

Hash utility functions for Ethereum.

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

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

BigNumber library used in ethers.js.

Properties utility functions for ethers.

String utility functions.

The keccak256 hash function for ethers.

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

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

BIP32 Hierarchal Deterministic Node operations.

Wallet management utilities for KeyStore

Unit conversion functions for Hedera Hashgraph.

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

Maintains a periodically updated list of approved and unapproved website origins

Merkle tree optimized for lists of sequentially appended data and its proofs

Creates user operations and manages their life cycle

Utilities for handling EVM Addresses for hethers.

Common EVM & Hedera Hashgraph constants used for hethers.

Polling Controller is the base for controllers that polling by networkClientId

Veramo KMS implementation that provides Ed25519 and secp256k1 crypto

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

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

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

Stores and suggests names for values such as Ethereum addresses

Umbrella package for most common Hethers libraries.

Manages New MetaMask decentralized Notification system

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

A CLI for developing MetaMask Snaps

Utilities for building MetaMask applications

Simplify dApp creation

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

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

Manages user-configurable settings for MetaMask

A tool for processing JSON-RPC messages

Manages logging data to assist users and support staff

Singleton factory used by Safe related contracts

A Webpack plugin to build MetaMask Snaps with Webpack

Data and convenience functions shared by multiple packages

Processes signing requests in order to sign arbitrary and typed data

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

Manages bridge-related quote fetching functionality for MetaMask

BTC Markets API Client for Node.JS

Consolidates the state from multiple controllers into one

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

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

Contains logic for rate-limiting API endpoints by requesting origin

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

Stores and manages interactions with signing requests

Multichain network controller

Maps ENS names to their resolved addresses by chain id

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

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

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

Manages in-app announcements

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

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

Manages requests that require user approval

Sample package to illustrate best practices for controllers

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

Manages internal accounts

Logs errors to an error reporting service such as Sentry

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 a list of recipient addresses associated with nicknames

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

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

Manages bridge-related status fetching functionality for MetaMask

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

The SHA2 family hash functions and HMAC functions for ethers.

Manages token search and discovery through the Portfolio API

A type-safe message bus library

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

Typescript port of web3.js

Service to manage multichain accounts

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

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

A library for interfacing with ckETH.

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

Manages delegations for MetaMask

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

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

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

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

The RemoteFeatureFlagController manages the retrieval and caching of remote feature flags

Veramo ethr-did based identity controller plugin.

Manages requests that for app metadata

foundryup

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

Ledger Hardware Wallet Ethereum Application API

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

Singleton factory used by Safe related contracts

Rango Exchange Basic SDK for dApps

Ledger signer for ethers v6.

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

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

Ledger EVM Coin integration

Collection of smart contracts for the Realitio fact verification platform

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

Ethereum multisig contract

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

EVM specific base implementation

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

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

Provide easy conversion between crypto symbol and name

XinFin XDC Network JavaScript API

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

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

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

Package for the LSP17 Contract Extension standard

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

Frontier 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

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

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