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

8240entries
★ starsA–Z name

claude-code-from-scratch

1
@Alihusn3392

Build Claude Code from scratch with a step-by-step tutorial in TypeScript and Python for learning agent coding tools

updated Jul 2026

claude-code-prompts

1
@Birdcherrytreemurdermystery747

Build Claude Code prompt templates for AI coding agents, with system prompts, tool prompts, memory, and multi-agent coordination

updated Jul 2026

Elara

1
@EdleyEngineers

A discreet logging tool for domestic abuse victims, Elara was built in 6 hours at Vanderbilt’s Anthropic-sponsored Claude Builders Club hackathon. Using 'Dynamic Theme Camouflage,' it masks its UI to appear like mundane sites, allowing users to securely log evidence through hidden inputs and export records to authorities without alerting an abuser.

updated Apr 2026

the-extension

1
@aidanjnn

claude code for building extensions

updated May 2026

claude-code-available-tools

1
@AndreaBonn

Your Claude Code setup is powerful, but hard to see at a glance. This tool fixes that. A fast, interactive TUI that scans your global and project configurations, showing every slash command, subagent, skill, MCP server, hook, and env variable with live filtering and auto-refresh. Zero config required.

updated Jul 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 Jun 2026

mcp-doc-assistant

1
@Bharathi-vbr

MCP document assistant with FastMCP server and Python client — supports reading and editing documents via Claude-compatible tool calls using the Model Context Protocol.

updated Apr 2026

claude-studio

1
@Sowhost700

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

updated Jul 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

claude-patches

1
@ojura

Out-of-tree patches for the VSCode Claude Code extension — fixes for rename flip-back, fork visibility, sticky-header occlusion, parentUuid chain breaks, title resolver order, and slash-command false-positives. Reapplies cleanly across releases via structural anchors.

updated Jul 2026

ai-tokenpulse

1
@abhinandang90

Real-time token economics and context-budget observer for agentic AI systems. A local daemon + HTTP proxy + MCP server captures every Claude API call's cost, context saturation, model breakdown, tool-use counts and burn anomalies — natively in Claude Code, Cursor, and any Anthropic SDK agent. Detects "spinning" before billing time.

updated Apr 2026

oh-my-matrix

1
@TeFuirnever

omm (oh-my-matrix):OpenClaw-native orchestration extension suite.

updated Jul 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

CodeSentinel

1
@hor1zon131

一个基于 Anthropic Claude 的多 Agent 代码审查与自动修复系统,核心采用 tool_use 的 Agentic Loop 架构。

updated Apr 2026

mcp-server

1
@VisualSentinel

Model Context Protocol server for Visual Sentinel: monitor, incident, and free-tool access from Claude Desktop, Claude Code, Cline, Continue

updated Jun 2026

swift-lispkitassist

1
@objecthub

Framework and CLI tool supporting the development of LispKit programs and libraries with a GenAI-driven chat interface. For now, the framework is based on Anthropic's Claude.

updated May 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

annotate-for-agent-vs-code

1
@saimageshvar

VS Code extension to annotate agent-generated code and export structured feedback for agents (Claude Code, Cursor, etc.)

updated May 2026

linkedin-competitor-analyzer

1
@akansh7

Self-hosted tool for tracking LinkedIn competitor engagement, identifying ICP contacts, and exporting leads — powered by Apify and Claude AI

updated May 2026

jupyterlab_claude_code_extension

1
@stellarshenson

JupyterLab 4 extension - Claude Code session management side panel

updated Jul 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 Jul 2026

claude-terminal-panel

1
@NgVB1408

Standalone Electron terminal app + VS Code extension cho Claude Code, multi-account, MCP tools, encrypted API keys

updated Jul 2026
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