MCP-B

MCP server for Chrome DevTools

Create a new WebMCP app with interactive template selection

A modern web-based Model Context Protocol (MCP) playground for testing and developing MCP servers and clients

Claude Code skill for setting up Char - AI agent platform with WebMCP browser automation tools and embedded chat widgets

Char host shell. Framework-agnostic custom element that bridges to the iframe embed runtime.

Embeddable AI chat agent component for React and script tag usage. Intercom-like widget that connects to MCP servers.

Browser transport implementations for Model Context Protocol (MCP) - postMessage, Chrome extension messaging, and iframe communication for AI agents and LLMs

W3C Web Model Context API polyfill - Let AI agents like Claude, ChatGPT, and Gemini interact with your website via navigator.modelContext

React hooks for Model Context Protocol (MCP) - expose React components as AI tools for Claude, ChatGPT, Cursor, and Copilot with Zod validation

AEC (Architecture, Engineering, Construction) web components for Sigvelo, built with Lit.

Token-efficient DOM extraction for AI agents - Extract interactive elements, semantic structure, and stable CSS selectors for LLM-powered browser automation

Strict TypeScript type definitions for the WebMCP core API (document.modelContext)

Local MCP relay for browser WebMCP tools via embed iframe and localhost WebSocket

Strict WebMCP core runtime polyfill for document.modelContext (with deprecated navigator.modelContext alias)

Browser-adapted MCP TypeScript SDK - Dynamic tool registration for W3C Web Model Context API and AI agent integration

React convenience wrapper for the @mcp-b/char custom element.

Shared business logic for Char Chrome extensions — auth, MCP tool aggregation, userscript sync.

Auth utilities for Char AI SaaS - OIDC validation, JWKS caching, and security utilities

MCP-B React components built on Base UI and shared design tokens.

Shared design tokens for MCP-B React applications.

Cloudflare Think chat primitives for MCP-B apps.

Leaflet web components for Sigvelo, built with Lit.

OpenLayers web components for Sigvelo, built with Lit.

MapLibre GL JS web components for Sigvelo, built with Lit.

Shared base classes, events, types, and styles for Sigvelo geo component libraries.

Shared base classes, events, utilities, and styles for Sigvelo web component libraries.

Sigvelo interactive code editor components built with Lit.

Sigvelo SaaS web components built with Lit.

Cloudflare's Durable Object runtime (workerd), ported to TypeScript: actors with input/output gates, SQLite storage, facets and alarms, running in the browser and in Node.

Zero-dependency browser-native code sandbox for LLM-generated tool orchestration

62+ Chrome Extension API tools for Model Context Protocol (MCP) - Let AI agents control tabs, bookmarks, history, storage, and more

Custom element for exposing iframe MCP tools, resources, and prompts to parent page

Standalone React hooks for strict core WebMCP tool registration with document.modelContext

TypeScript parser, validator, prompt, and patch utilities for the AgentSkills specification

Claude Code skill for setting up WebMCP - browser-native MCP integration for web applications

MCP server for smart-dom-reader backed by Playwright

Inject WebMCP from a Chromium extension and call page tools from an isolated content script

Hand web work, files and bash to Rook, the browser agent in your own Chrome profiles.

React hooks for connecting browser apps to remote MCP servers.