metamask/utils

A simple and composable way to validate data in JavaScript (and TypeScript).

Audited & minimal 0-dependency JS implementation of SHA, RIPEMD, BLAKE, HMAC, HKDF, PBKDF & Scrypt

Secure, audited & 0-dep implementation of base64, bech32, base58, base32 & base16

TypeScript definitions for debug

Lightweight debugging utility for Node.js and the browser

The semantic version parser used by npm.

RFC9562 UUIDs

A tool for running only the dependency lifecycle hooks specified in an allowlist.

Utilities for validating and updating "Keep a Changelog" formatted changelogs

Shareable MetaMask ESLint config.

Shareable MetaMask ESLint config for Jest.

Shareable MetaMask ESLint config for Node.js.

Shareable MetaMask ESLint config for TypeScript.

TypeScript definitions for jest

TypeScript definitions for node

TypeScript definitions for uuid

TypeScript plugin for ESLint

An ESLint custom parser which leverages TypeScript ESTree

Check dependencies in your node module

Import with sanity.

ESLint rules for Jest

JSDoc linting rules for ESLint.

Additional ESLint's rules for Node.js

Runs prettier as an eslint rule

Enforce best practices for JavaScript promises

Delightful JavaScript Testing.

Prettier package.json plugin to make the order of properties nice.

A Jest transformer with source map support that lets you use Jest to test projects written in TypeScript

TypeScript execution environment and REPL for node.js, with source map support

Create api documentation for TypeScript projects.

TypeScript is a language for application scale JavaScript development

Implementation of the various Ethereum Transaction Types

Ponyfill and helpers for Error Causes

Bridge the gap between ES modules and CommonJS modules with an easy-to-use alternative to `tsc`.

CommonJS and ES Modules shims for TS Bridge.

TypeScript definitions for jest-when

Automatically bump up global Jest thresholds whenever coverage goes above them

An extension lib for jest

Mock Command Line Applications

A few useful functions for signing ethereum data

TypeScript types for developing MetaMask Snaps.

A library containing the core functionality for building MetaMask Snaps

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

An interface over BIP-32 and BIP-39 key derivation paths

A block tracker for the Ethereum blockchain. Keeps track of the latest block.

Ethereum-related json-rpc-engine middleware.

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

Ethereum RPC and Provider errors

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

MetaMask Keyring API

Data and convenience functions shared by multiple packages

A collection of utilities for MetaMask Snaps

A CLI for developing MetaMask Snaps

A simple browserifiable module for password-encrypting JS objects.

A tool for processing JSON-RPC messages

Sets up a duplex object stream over window.postMessage

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

Lightweight utilities for encoding and decoding Solidity ABI

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

Ethereum-related json-rpc-engine middleware.

A simple standard interface for a seed phrase generated set of Ethereum accounts.

A simple standard interface for a series of Ethereum private keys.

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

MetaMask Keyring utils

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

Data and convenience functions shared by multiple packages

Polling Controller is the base for controllers that polling by networkClientId

Controllers for MetaMask Snaps

Manages requests that require user approval

Venly enabled Web3 Provider for the web

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

MetaMask Snap RPC method implementations.

Controllers for MetaMask Snaps.

A module for managing various keyrings of Ethereum accounts, encrypting them, and using them