MetaMask

MetaMask example snap demonstrating the use of `snap_dialog`.

A collection of AI-related controllers

MetaMask SDK Install Modal for Web

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

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

A MetaMask compatible keyring, for ledger hardware wallets

json-rpc-engine middleware for Infura's endpoints

Transaction nonce calculation used in MetaMask.

A registry containing metadata about verified and blocked Snaps.

A history of deployments of the Delegation Framework

Various JavaScript/TypeScript utilities of wide relevance to the MetaMask codebase

A MetaMask compatible keyring, for trezor hardware wallets

Design System twrnc Preset

Lightweight utilities for encoding and decoding Solidity ABI

MetaMask Account API

A page to warn users about a suspected phishing site.

Functions and classes needed to work with MetaMask Desktop

A Bitcoin wallet Snap.

A simple mapping between slip44 IDs and their network metadata.

MetaMask Keyring API

Improves success rates for swaps by trialing transactions privately and finding minimum fees

Shareable MetaMask ESLint config for Jest.

An interactive command-line tool to prepare a release branch by automatically bumping versions and updating changelogs for desired packages. Works for both polyrepos and monorepos.

This module has code to integrate Blockaid PPOM with MetaMask

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

Snaps keyring bridge.

Ocap Kernel storage abstractions and implementations

A test dapp for multichain api

Provide automatic message signing (no user interaction) using a pseudo randomly generated private key

Grants 7715 permissions from a DeleGator smart account

An ESLint plugin designed to enforce best practices and consistency for using MetaMask design tokens across various projects

A Solana wallet Snap.

Keep an eye on Ethereum accounts right in MetaMask

Tools for creating `Proxy`s around objects that are swappable via setTarget

A MetaMask Snap used for Ethereum Name Service (ENS) resolution

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

MetaMask Multichain Api Client

A Tron wallet Snap.

The MetaMask Solana wallet-standard implementation

MetaMask Swaps controller module

An EIP-4337 bundler to be used in client E2E tests

A library for categorizing and labeling blockchain transactions

Analytics package for MetaMask Connect

Minimal utilties to make working with the delegation framework easier

React Native Utils for MetaMask. This project is under development and that individuals should use it at their own risk.

Google ACM for react-native

The MetaMask Stake SDK

A test dapp for solana

A test dapp for tron

The MetaMask Node module template

SDK for authenticated (non-encrypted) user storage endpoints

SDK for authenticated (non-encrypted) user storage endpoints

A money account keyring that wraps the HD keyring with a different keyring type and derivation path

A Keyring for Ethereum money accounts that uses Multi-Party Computation (MPC) for key management and signing

MetaMask Connect multichain client — CAIP multichain API, session management, and transport negotiation

A browser test dapp for multichain api

Platform-agnostic service for storing large, infrequently accessed controller data

Platform-agnostic service for storing large, infrequently accessed controller data

A tool for processing JSON-RPC messages

A tool for processing JSON-RPC messages

Core backend services for MetaMask

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

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

Ethereum-related json-rpc-engine middleware

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

Ethereum-related json-rpc-engine middleware

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

Service to manage multichain accounts

Data service for the Chomp API

Provides utilities for building data services

Service for Account Management Snaps

Data service for the MetaMask Sentinel API

Implements the JSON-RPC methods for sending multiple calls from the user's wallet, and checking their status, as referenced in EIP-5792

JSON-RPC methods and middleware to support the MetaMask Multichain 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

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

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

Implements the JSON-RPC methods for sending multiple calls from the user's wallet, and checking their status, as referenced in EIP-5792

Implements internal JSON-RPC methods for EIP-7702 account upgrade functionality

Decides when and how to surface the network connection banner based on RPC endpoint health

The RemoteFeatureFlagController manages the retrieval and caching of remote feature flags

Data service for fetching Money account balances, exchange rates, and vault APY

The RemoteFeatureFlagController manages the retrieval and caching of remote feature flags

Common Analytics controller for event tracking

Controller for managing analytics privacy and GDPR/CCPA data deletion functionality

Common Analytics controller for event tracking

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

Multichain network controller

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

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

Multichain network controller

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

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

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

Decides when and how to surface the network connection banner based on RPC endpoint health

Client-level state for MetaMask (e.g. whether a UI window is open)

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

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 for Account Management Snaps

Core backend services for MetaMask

Manages New MetaMask decentralized Notification system

Manages display of notifications within MetaMask

Controller for managing gator permissions with profile sync integration

Manages user profile metrics

Sample package to illustrate best practices for controllers

solana-test-validator runtime installer for MetaMask E2E tests

java-tron runtime installer for MetaMask E2E tests

Bitcoin Core regtest runtime installer for MetaMask E2E tests

Manages alternate payment strategies to provide required funds for transactions in MetaMask

Manages alternate payment strategies to provide required funds for transactions in MetaMask

Shareable MetaMask ESLint config.

Shareable MetaMask ESLint config for Node.js.

Shareable MetaMask ESLint config for Mocha.

[json-rpc-engine](https://github.com/MetaMask/json-rpc-engine) middleware implementing ethereum filter methods. Backed by an [eth-block-tracker](https://github.com/MetaMask/eth-block-tracker) and web3 provider interface (`web3.currentProvider`).

Shared utilities for MetaMask network snaps

A Stellar wallet Snap

Shared types for design system libraries

Design System React Native

Design system react ui components

Design System Tailwind CSS preset for MetaMask projects

Network transport using Centrifuge and Noise KK encryption for the MetaMask MFA Wallet SDK

A lightweight logging package using @metamask/streams

Shared MetaMask agent skills installer and sync CLI.

ABIs mapped to versions of the Delegation Framework contracts

Low level core functionality for interacting with the Delegation Framework

A Solana wallet Snap.

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

MetaMask example snap demonstrating the use of the `endowment:network-access` permission in snaps

MetaMask example snap demonstrating how to localize a snap.

Daily anonymizer for MetaMask developer tooling usage metrics

common utilities to access and format responses from auth network