Various JavaScript/TypeScript utilities of wide relevance to the MetaMask codebase
A very small TypeScript library that provides tolerable Mixin functionality.
OpenTelemetry Zipkin Exporter allows the user to send collected traces to Zipkin.
Generate minified bundle
Simple Statistics
Playwright Tools for MCP
Provides access to the system's web browser and supports handling redirects. On iOS, it uses SFSafariViewController or ASWebAuthenticationSession, depending on the method you call, and on Android it uses ChromeCustomTabs. As of iOS 11, SFSafariViewControl
Match human-quality input to potential matches by edit distance.
Ajv class for JSON Schema draft-04
Vendor server-side libraries to validate and test Tide Security
A dummy package that helps you download and install yFiles for HTML and the 'yFiles dev suite'.
hast utility to check if a node is inter-element whitespace
A bcrypt library for NodeJS.
Easy+ UI EmptyState WebComponent
request body parsing for co
Copy stuff into clipboard using JS with fallbacks
Scanner and parser for JSON with comments.
the http/https agent used by the npm cli
Provides routing functionality for Inferno
Easy+ UI HelpText Styles
MCP App for interactive feedback — renders a chat UI directly inside MCP hosts (Claude, Cursor, etc.)
Implementation of the HTML encoding sniffer algo, with stream support
Parses call stacks. Reads sources. Clean & filtered output. Sourcemaps. Node & browsers.
A transport for winston which logs to a rotating file each day.