Open-Source Directory — Claude / Anthropic

Claude
Tools

A curated index of extensions, plugins, MCP servers, hooks, and integrations for Claude — discovered from GitHub and refreshed daily.

Repository Growth — Last 30 Days

8261entries
★ starsA–Z name

claude-data-reporter

★ 1
@ps-cmd777

AI-powered CSV analysis CLI. Claude tool-use API generates statistical insights, charts, and Markdown reports from any CSV.

updated Jul 2026

measurement-uncertainty-mcp

★ 1
@kyb8801

MCP server for GUM (JCGM 100:2008) measurement uncertainty - Type A/B, Welch-Satterthwaite, coverage factor k, Monte Carlo per JCGM 101. For ISO/IEC 17025 and ISO 10012:2026 labs.

updated Oct 2026

CommentStyler-AI

★ 1
@RylanHexx

A Visual Studio Code extension made for Vibe Coders so that they can easily understand all the giberish AI models put in their code.

updated May 2026

claude-code-context-tracker

★ 1
@louispfeiffer

Status line extension for Claude Code showing context usage with proactive hints

updated Apr 2026

wingman-x

★ 1
@stone16

AI Twitter/X reply bot that drafts voice-matched replies from your Obsidian knowledge base — human-in-the-loop, 100% local. Chrome extension + local daemon for Claude Code, Codex & any MCP agent.

updated Sep 2026

omnifocus-mcp

★ 1
@uthark

MCP for Omnifocus

updated Jun 2026

claude-skill-check-vscode

★ 1
@MukundaKatta

VS Code extension that lints Claude Code SKILL.md files inline. Editor companion to the claude-skill-check PyPI package.

updated Jun 2026

ai-agents

★ 1
@Claws-ZH

AI agent fleet — devops, finance, media, office, social. Shared Anthropic Claude API loop, domain-specific tools.

updated Apr 2026

claude-session-manager

★ 1
@CoreyLyu76

Name, browse & one-click resume Claude Code / Codex CLI sessions from a VS Code sidebar. Auto-mode resume, session backup, tool switching.

updated Oct 2026

claude-code-inspector

★ 1
@nemone81

Chrome extension + local Node.js bridge that lets you visually pick any DOM element on a page and dispatch a natural-language prompt to Claude Code.

updated Sep 2026

claude-power-skills

★ 1
@rabiinfrangible920

Boost Claude Code with 20 power-user skills for session management, multi-agent work, testing, and better estimates

updated Oct 2026

claude-channel-instagram

★ 1
@riasistemas

Instagram channel plugin for Claude Code — official Graph API integration with built-in access control. Modular: public core + optional extensions for CRM / automation. Built by RIA Systems (Meta Tech Provider).

updated Oct 2026

claude-studio

★ 1
@Sowhost700

Build Claude AI apps with a unified dev stack for code, prompts, tools, tests, and local workflow

updated Oct 2026

claude-a2a

★ 1
@oriolrius

A2A-protocol bridge for two Claude Code agents communicating via MCP (Google Agent2Agent over JSON-RPC, exposed as stdio MCP tools).

updated May 2026

agents-gui

★ 1
@trry-hub

VS Code extension: unified GUI for AI CLI tools (Claude Code, Gemini CLI, Codex, Cursor Agent)

updated Jul 2026

claude-codex-usage-dashboard

★ 1
@charlesDGY

Local web dashboard for Claude Code (Anthropic) + Codex (OpenAI) token usage with real-time 5h/7d quotas, USD cost estimation, and per-tool/subagent/project breakdown

updated Jun 2026

gh-tasks

★ 1
@ozzy-labs

GitHub CLI extension and skill bundle to manage tasks across GitHub Projects v2, Issues, and Milestones — for personal todos, single-project work, and cross-project coordination. Distributed for Claude Code, Codex CLI, GitHub Copilot, and Gemini CLI.

updated Jul 2026

claude-terminal-title

★ 1
@ranmedina

Let Claude Code (or any process) rename the active Cursor / VS Code terminal tab. Skill + extension.

updated Jul 2026

jupyterlab_claude_code_extension

★ 1
@stellarshenson

JupyterLab 4 extension - Claude Code session management side panel

updated Aug 2026

free-claude-code

★ 1
@imajus

Use claude-code for free in the terminal, VSCode extension or via discord like openclaw

updated May 2026

claude-power-setup

★ 1
@mishasuperficial646

Orchestrate multi-agent workflows and automate complex pipelines for Claude Code with recursive self-improvement tools.

updated Oct 2026

hermes-sdlc

★ 1
@dustin9893

AI-powered SDLC pipeline orchestrator — MCP server + VS Code extension for multi-agent development workflows (Antigravity, Claude Code, Codex)

updated Jul 2026

free-claude-code

★ 1
@fibssy

Use claude-code for free in the terminal, VSCode extension or discord like OpenClaw (voice supported)

updated Sep 2026

actionstep-mcp

★ 1
@RosenAdvertising

MCP server for Actionstep — API coverage for law firm practice management.

updated Oct 2026
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