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

8257entries
★ starsA–Z name

cursor-setup-exercise

0
@ngoctongpsy-commits

My setup notes for Cursor IDE with Claude Code and Codex extensions

updated May 2026

ClaudeCodeChromiumExtensionForResume

0
@abhinavg1997
updated May 2026

claude-code-statusline-usage

0
@eastonsuo

Non-invasive realtime usage statusline for Claude Code: live context %, cost, diff, api time — via the official statusLine extension point (no app-bundle patching, survives upgrades).

updated May 2026

chrome-extension-builder

0
@harry-harish

Claude Code plugin for building, validating, testing, and shipping Manifest V3 Chrome extensions.

updated May 2026

chrome-extension-emissary

0
@chayestudos68-gif

🔥 Chrome Extension Factory 2026 - Auto Build, Deploy & Publish to Web Store

updated May 2026

cursor-claude-workflow-toolkit

0
@AlaaKAAli

AI-Powered Cursor & Claude Toolkit for Developers 2026 - Code Insights, Faster Debugging, Big Repo Mastery

updated May 2026

encode-query-nexus

0
@cici566

Best MCP Server for ENCODE Functional Genomics Data 2026 – Search, Download & Analyze Experiments

updated May 2026

claude-agent-kit

0
@Tajaddin

Production patterns for the Anthropic Agent SDK. Live Haiku 4.5: 60% cache hit rate, 12% cost reduction on a 10-turn conversation. Prompt caching, memory tool, parallel tool execution, conversation compaction.

updated May 2026

9r-claude

0
@zesbe

Wrapper Claude Code CLI untuk endpoint Anthropic-compatible custom (9router/Hermes/proxy). Per-tier model mapping + bridge tools buat sesi Kiro.

updated May 2026

agent-desktop

0
@ngyihsin

VS Code extension for multi-project Claude Code document authoring — persistent sessions, shared chat panel, markdown preview.

updated May 2026

claude-crypto-toolkit

0
@juitindev

Reference implementation of Anthropic Claude advanced API patterns: Tool Use, Prompt Caching, Streaming, Scope Enforcement

updated May 2026

ClaudeCode-Telegram-Bridge

0
@Prateek816

A Telegram extension for Claude Code CLI that enables seamless remote interaction, command execution, and workflow management directly from Telegram.

updated May 2026

revit-mcp-tool-generator

0
@studioliquid-lab

Generate MCP tools for Revit from natural language, via Claude + pyRevit. Experimental, feedback welcome.

updated May 2026

claudecut

0
@G33M0D

AI video editor that lives inside Claude Code. Tell it what to do — get a finished MP4 back in seconds. Remotion + Whisper + Anthropic tool use.

updated May 2026

EdgeControl

0
@amadeus1171

Claude Code MCP server for Microsoft Edge browser control via the Chrome DevTools Protocol — 64 tools, no extension or Puppeteer/Playwright.

updated May 2026

claude-eval-harness

0
@maximizeGPT

Regression-diff eval harness for Anthropic tool-use agents that surfaces LLM-judge reasoning drift, not just pass/fail flips

updated May 2026

claude-helper

0
@MiranNadav

Terminal companion/extension for Claude Code

updated May 2026

figma-plugin-skills

0
@jaaaaaaaaaaack

Claude Code skill for building Figma plugins, widgets, and Dev Mode extensions

updated May 2026

abi-stable-skills

0
@janeyx99

Claude Code skills for migrating PyTorch C++/CUDA extensions to the stable ABI

updated May 2026

claude-cli

0
@BrainXio

Claude Code CLI extensions: hooks, quality gates, and utility commands

updated May 2026

Mouse-Gesture-Extension

0
@yoshimune-a11y

A mouse gesture extension for Edge created with Claude code

updated May 2026

cws-studio

0
@tacticlaunch

Claude Code plugin: end-to-end CWS browser-extension launch pipeline (13 skills, gstack-style)

updated May 2026

claude-api-cookbook

0
@bhupendra05

Claude API examples: tool use, vision, streaming, batch API, structured output, prompt engineering patterns

updated May 2026

unifapi-mcp-server

0
@unifapi-agent

UnifAPI MCP server: public-data APIs and Skills for AI agents via Model Context Protocol

updated May 2026
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