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Best Extension AI Skills & MCP Servers

34 curated Extension skills and MCP servers — install any of them into Claude, Cursor, ChatGPT, n8n, or any AI stack with one command.

Bridge

MCP Registry

Page Context MCP Bridge - relays extension context tools to MCP clients via stdio/SSE transport

MCP Registry · ★ 5.0free

Thunderbird Cli Bridge

MCP Registry

HTTP↔WebSocket bridge daemon between thunderbird-cli (or any HTTP client) and the Thunderbird WebExtension. Stateless proxy, localhost-only.

MCP Registry · ★ 5.0free

Transports

MCP Registry

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

MCP Registry · ★ 5.0free

Pi Tidy Adapter

MCP Registry

MCP (Model Context Protocol) adapter extension for Pi coding agent fork form https://github.com/nicobailon/pi-mcp-adapter

MCP Registry · ★ 5.0free

Search

MCP Registry

MCP server for browser automation via Jan Browser extension - provides tools for web navigation, interaction, and search

MCP Registry · ★ 5.0free

Server

MCP Registry

MCP Server for Mtop DevTools - enables AI to interact with Chrome browser requests and logs

MCP Registry · ★ 5.0free

Kapture

MCP Registry

MCP server for Kapture browser automation

MCP Registry · ★ 5.0free

Axm.Sh

MCP Registry

Extension manager for AI coding agents — install skills, subagents, slash commands, and MCP servers across Claude Code, Codex, Cursor, Copilot, and more.

MCP Registry · ★ 5.0free

Cli

MCP Registry

CLI for OpenTabs — start the MCP server, manage plugins, and configure your AI agent browser bridge

MCP Registry · ★ 5.0free

Server

MCP Registry

MCP server that turns browser tabs into AI agent tools via a Chrome extension plugin system

MCP Registry · ★ 5.0free

Airtable User

MCP Registry

Community MCP server for Airtable. Schema inspection, table / field / view CRUD (including merge-safe filter / sort / group updates), formula validation, and extension management. Not affiliated with Airtable Inc.

MCP Registry · ★ 5.0free

Pi Minimax

MCP Registry

MiniMax MCP tools for pi - Web search and image understanding via MiniMax's Model Context Protocol

MCP Registry · ★ 5.0free

Cli

MCP Registry

Universal AI CLI extension manager - install MCP servers, plugins and skills across Claude Code, Gemini CLI and Codex in one command

MCP Registry · ★ 5.0free

Bridge

MCP Registry

MCP stdio server + WebSocket primary for browserops — drives the browserops Chrome extension. Install `browserops` for the user-facing CLI.

MCP Registry · ★ 5.0free

Browser

MCP Registry

Browser MCP — control your real Chrome from Claude Code. 33 tools, CAPTCHA solving, date pickers, autocomplete combobox, overlay dismissal, file upload, multi-session, human-in-the-loop.

MCP Registry · ★ 5.0free

Piorter

MCP Registry

Single-tool MCPorter bridge extension for pi and Model Context Protocol (MCP) servers.

MCP Registry · ★ 5.0free

Tandem

MCP Registry

Browser automation for AI agents via Chrome extension + Native Messaging. Works with OpenCode, Claude Code, and any MCP-compatible agent.

MCP Registry · ★ 5.0free

Md Feedback

MCP Registry

MCP server for markdown plan review — companion to the MD Feedback VS Code extension. AI agents read annotations, mark tasks done, evaluate quality gates, and generate session handoffs. 27 tools for Claude Code, Cursor, and other MCP-compatible clients.

MCP Registry · ★ 5.0free

Postgres

MCP Registry

PostgreSQL MCP server with connection pooling, tool filtering, and full extension support

MCP Registry · ★ 5.0free

Emet

MCP Registry

Zero-setup grounded web research MCP server and Pi extension for AI coding agents.

MCP Registry · ★ 5.0free

Pi Minimax

MCP Registry

MiniMax MCP tools for pi - Web search and image understanding via MiniMax's Model Context Protocol

MCP Registry · ★ 5.0free

Ui Annotator

MCP Registry

MCP server that annotates any web page with hover labels — zero extensions, any browser

MCP Registry · ★ 5.0free

Llm Thinking Patterns Nakprc

MCP Registry

Generate sequential thinking pattern files to study and learn AI reasoning. Plug-and-play extension for Claude Code, Claude Desktop, Cursor, Windsurf, and any MCP-compatible LLM.

MCP Registry · ★ 5.0free

Real Browser

MCP Registry

MCP server + Chrome extension that gives AI agents control of your real browser with existing sessions and logins

MCP Registry · ★ 5.0free

About Extension skills on iClaude

iClaude is the universal install layer for AI skills. Every Extension skill on this page can be installed into Claude Code, Claude Desktop, Cursor, ChatGPT, n8n, Codex, and more — using a single copy-paste command. No config drift, no per-stack adapters, no manual MCP wiring.