JSPM

An Abstract Class for describing an Ethereum Provider for ethers.

Utilities for decoding and encoding Ethereum transaction for ethers.

The keccak256 hash function for ethers.

BigNumber library used in ethers.js.

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

Utilities for handling Ethereum Addresses for ethers.

Bytes utility functions for ethers.

Properties utility functions for ethers.

Base64 coder.

Hash utility functions for Ethereum.

Utility fucntions for managing web requests for ethers.

Ethereum Name Service (ENS) Name Normalizer

An Abstract Class for desribing an Ethereum Signer for ethers.

Ethereum Providers for ethers.

Unit conversion functions for Ethereum.

Classes for managing, encrypting and decrypting Ethereum private keys as a Signer for ethers.

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.

String utility functions.

A tool for processing JSON-RPC messages

Recursive-Length Prefix (RLP) coder.

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

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

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 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

A collection of utilities for MetaMask Snaps

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

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.

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

foundryup

Controllers for MetaMask Snaps

Snap sandbox environments for executing SES javascript

Multicoin address validator for Bitcoin and other Altcoins.

Manages New MetaMask decentralized Notification system

Maintains a periodically updated list of approved and unapproved website origins

Design tokens to be used throughout MetaMask products

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 a list of recipient addresses associated with nicknames

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

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

Data and convenience functions shared by multiple packages

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.

MetaMask Snaps JSON-RPC method implementations

Type definitions for the Snowbridge parachain

Manages internal accounts

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

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

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

Manages user-configurable settings for MetaMask

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

Manages bridge-related status fetching functionality for MetaMask

Manages bridge-related quote 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.

The RemoteFeatureFlagController manages the retrieval and caching of remote feature flags

Utilities for building MetaMask applications

The MetaMask Node module template

Types for use with the Safe Core SDK packages

Service to manage multichain accounts

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

Stores and suggests names for values such as Ethereum addresses

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

Manages delegations for MetaMask

Stores and manages interactions with signing requests

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

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

A history of deployments of the Delegation Framework

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

Manages token search and discovery through the Portfolio API

Manages requests that for app metadata

Consolidates the state from multiple controllers into one

Design System Tailwind CSS preset for MetaMask projects

Design System twrnc Preset

Ethereum multisig contract

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

Techincal Indicators written in javascript

Hardware Wallet support for ethers.

Design system react ui components

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

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

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

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.

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

ABIs mapped to versions of the Delegation Framework contracts

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.

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

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

Hash utility functions for Ethereum.

Minimal utilties to make working with the delegation framework easier

Contract abstraction meta-class for hethers.

Network definitions for hethers.

Solidity contract visualisation tool.

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

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

Creates user operations and manages their life cycle

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.

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

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

Hedera Hashgraph Providers for hethers.

Singleton factory used by Safe related contracts

A tool for processing JSON-RPC messages

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

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

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

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

Manages in-app announcements

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

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

Maps ENS names to their resolved addresses by chain id

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 bridge-related quote fetching functionality for MetaMask

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

Manages internal accounts

Consolidates the state from multiple controllers into one

Multichain network controller

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

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

A library for interfacing with ckETH.

Manages token search and discovery through the Portfolio API

Logs errors to an error reporting service such as Sentry

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

Manages user-configurable settings for MetaMask

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

Utilities for building MetaMask applications

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

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

Manages a list of recipient addresses associated with nicknames

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

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

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

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

A type-safe message bus library

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

Manages delegations for MetaMask

The SHA2 family hash functions and HMAC functions for ethers.

Processes signing requests in order to sign arbitrary and typed data

Contains logic for rate-limiting API endpoints by requesting origin

The RemoteFeatureFlagController manages the retrieval and caching of remote feature flags

Veramo ethr-did based identity controller plugin.

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

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

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

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

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

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

Manages bridge-related status fetching functionality for MetaMask

Manages requests that for app metadata

Singleton factory used by Safe related contracts

Rango Exchange Basic SDK for dApps

Collection of smart contracts for the Realitio fact verification platform

Ledger EVM Coin integration

Ledger Hardware Wallet Ethereum Application API

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.