The RemoteFeatureFlagController manages the retrieval and caching of remote feature flags

Data and convenience functions shared by multiple packages

A modest JavaScript framework for the HTML you already have.

Polling Controller is the base for controllers that polling by networkClientId

Core classes and controller for creating parallax scrolling effects

A Stimulus controller to toggle a class on one or multiple items to show or hide them.

Background job registry (ctx.jobs) for the DeepSeek Harness — shared ids, owner isolation, polling, cancellation, and completion listeners for long-running tool work

Manages a list of recipient addresses associated with nicknames

Multichain network controller

Manages user-configurable settings for MetaMask

A controller for managing cryptocurrency on/off ramps functionality

Tracks assets balances/prices and handles token detection across all digital assets

Session Remote commands, cold reads, and live control transport

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

Manages configuration registry for MetaMask

Centralised geolocation controller with TTL caching and request deduplication

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

Expose safe account operations over authenticated Remote

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