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

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anthropics-claude-plugins-official-aws-dev-toolkit

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@costrict-plugins-repo

costrict-plugins mirror of anthropics-claude-plugins-official-aws-dev-toolkit (auto-generated, do not edit)

updated May 2026

anthropics-claude-plugins-official-fastly-agent-toolkit

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@costrict-plugins-repo

costrict-plugins mirror of anthropics-claude-plugins-official-fastly-agent-toolkit (auto-generated, do not edit)

updated May 2026

anthropics-claude-plugins-official-pr-review-toolkit

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@costrict-plugins-repo

costrict-plugins mirror of anthropics-claude-plugins-official-pr-review-toolkit (auto-generated, do not edit)

updated May 2026

anthropics-claude-plugins-official-shopify-ai-toolkit

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@costrict-plugins-repo

costrict-plugins mirror of anthropics-claude-plugins-official-shopify-ai-toolkit (auto-generated, do not edit)

updated May 2026

flevinsky-ai

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@FabianLevi

Cross-agent dev service runner + Claude Code plugin + Pi extension

updated May 2026

pr-review-extension

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@jujunghan

Chrome extension MVP for reviewing GitHub PRs with Claude Code via local bridge server

updated May 2026

cursor-setup-exercise

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@ngoctongpsy-commits

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

updated Jun 2026

ClaudeCodeChromiumExtensionForResume

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@abhinavg1997
updated May 2026

encode-query-nexus

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@cici566

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

updated May 2026

claude-crypto-toolkit

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@juitindev

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

updated May 2026

claude-helper

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@MiranNadav

Terminal companion/extension for Claude Code

updated May 2026

figma-plugin-skills

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@jaaaaaaaaaaack

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

updated May 2026

Mouse-Gesture-Extension

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@yoshimune-a11y

A mouse gesture extension for Edge created with Claude code

updated May 2026

extension

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@harborline

Brave Dev Extension turns Brave's side panel and new tab page into a compact developer console. It connects browser context to local AI CLI tools, page inspection, recording, bookmarks, history, cookies, and synced resource storage.

updated Jul 2026

claude-code-modified-by-nexalance

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@developerjillur

Codex-style prompt queue manager for Anthropic's official Claude Code extension — pending prompts auto-fed via Stop hook with native osascript delivery.

updated May 2026

longform-claude-extension

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@denidelapan7

🚀 Longform Writing Plugin for Claude Code 2026 – AI Novel Editor & Repo

updated Jul 2026

librecrawl-mcp

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@bridgettmirthful637

Audit websites with this self-hosted SEO crawler. Connect LibreCrawl to Claude and perform unlimited technical audits without per-crawl fees.

updated Jul 2026

mcp

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@Felinerelief627

Connect LLM agents to your WireBoard analytics data using the Model Context Protocol for real-time and historical project insights.

updated Jul 2026

agentbound

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@havzer29

Boundary-respect evaluation framework for autonomous LLM agents — from the pilot where Claude refused to confabulate $20K

updated May 2026

wp-mcp

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@sadaigm

A Model Context Protocol (MCP) server for interacting with the WordPress REST API. This server provides tools for managing WordPress posts, pages, categories, and tags through a standardized MCP interface

updated May 2026

Installing-Cursor-and-Adding-Claude-Code-and-Codex-Extensions

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@tlight96

This is my steps to download Cursor and add additional extensions, and how I identified the problems during the process.

updated Jun 2026

ai-tools-setup-100hires

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@isdebesl

Setup repository for Cursor IDE, Claude Code, and Codex extensions.

updated May 2026

anthropics-claude-code-plugins-pr-review-toolkit

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@costrict-plugins-repo

costrict-plugins mirror of anthropics-claude-code-plugins-pr-review-toolkit (auto-generated, do not edit)

updated Jun 2026

claude-code-orbit

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@Lunarwerx

Claude Code Orbit — power-up VS Code extension for Anthropic's Claude Code (pin, archive, filter, search, YOLO mode). OTA-updatable patcher.

updated Jul 2026
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