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

8245entries
★ starsA–Z name

agentmarkb

1
@carlotorniai

Agentic AI Knowledge Base Chrome Extension — Extract full web articles as Obsidian-compatible Markdown for RAG pipelines, AI agent swarms, and knowledge management. Built with Claude Code.

updated Mar 2026

claude-recall

1
@paperhurts

Back up your Claude conversations when Anthropic's export doesn't work. This tool connects to your logged-in Chrome, walks through your conversations, and saves everything — messages, thinking blocks, metadata — to a local SQLite database. Two commands: one to extract, one to backfill full thinking block content.

updated Mar 2026

dimmer

1
@MaorZ19

VS Code extension to toggle MCP servers and Claude Code plugins on/off with profiles support

updated Feb 2026

claude-mcp-course

1
@jaygaha

A hands-on learning path for the Model Context Protocol (MCP) featuring structured lessons on server construction, client implementation, and the three MCP primitives (Tools, Resources, Prompts), accompanied by a fully working CLI chat demo project (documentMCP) that integrates Claude with an in-memory document store.

updated Jul 2026

claude-code-switcher

1
@manuj10

VS Code extension to switch Claude Code between Pro/Max Plan and API Key mode

updated Aug 2026

vscode_claudecode_sendlater

1
@V0latix

VS Code extension: queue prompts after rate-limit (Claude Code / Copilot) + token usage monitor

updated Apr 2026

Conductor

1
@taihartman

VS Code extension dashboard for monitoring Claude Code agents

updated May 2026

vscode-mcp-langserver

1
@joelharkes

experiment: making an mcp server wrapper in a vscode extension to be used by claude code.

updated Aug 2026

copilot-api-next

1
@ZiuChen

Turn your GitHub Copilot subscription into an OpenAI / Anthropic API compatible server. Works seamlessly with Claude Code and any tool that speaks the OpenAI or Anthropic protocol.

updated Apr 2026

JD.SemanticKernel.Extensions

1
@JerrettDavis

Semantic Kernel extensions for Claude Code skills, hooks, context compaction, and semantic memory.

updated Aug 2026

mochify-cli

1
@getmochify

High-performance Rust CLI & MCP Server for bulk image compression (AVIF, WebP, JXL, HEIC). Native speed, privacy-first, and AI-agent ready.

updated Jul 2026

codefluent

1
@frederick-douglas-pearce

Open-source VS Code extension and web app that scores how effectively you collaborate with Claude Code, grounded in Anthropic's AI Fluency Research.

updated Jul 2026

applied-ai-anthropic-codepath

1
@pstsantos

Weekly AI engineering projects built with Claude and the Anthropic API - covering agents, tools, and applied AI concepts through the CodePath x Anthropic course.

updated Apr 2026

clx

1
@blackaxgit

🛡️ Rust CLI extension for Claude Code — LLM-powered command validation, SQLite context persistence & MCP tools. Two-layer safety (rules + Ollama), vector semantic search, and user-adaptive learning.

updated Aug 2026

Copilot-Skill-Bridge

1
@MarcelRoozekrans

VS Code extension that bridges Claude Code marketplace skills into GitHub Copilot — discovers, converts, and imports skills with smart compatibility analysis

updated Aug 2026

youtube-watchlater-mcp

1
@tulaman

MCP server for fetching your YouTube Watch Later playlist via yt-dlp

updated Mar 2026

mango

1
@jj-valentine

Daily email digest aggregator; self-hosted tool using Claude AI to summarise YouTube, RSS feeds & APIs.

updated May 2026

claude-imagine

1
@prenats

MCP server for generating images in Claude Code — supports local image generation tools like ComfyUI and other backends

updated Jun 2026

Ciao-ChatGpt-Bonjour-Claude

1
@mindattic

JavaScript migration tool exporting full ChatGPT conversation history into Claude Projects via the Anthropic API.

updated May 2026

lovespark-a11y-toolkit

1
@Joona-t

Accessibility auditing toolkit — WCAG contrast checker, Claude Code slash commands, and a recursive improvement system for extension development

updated Jun 2026

OpenClaw-Dev-Skill

1
@Cjy-CN

A skill that keeps Codex, Claude Code, and OpenClaw grounded in current OpenClaw docs for safe operations and reliable extension development.

updated Mar 2026

vscode-extension-opencode-claude-code-monitor

1
@janzofx

Dashboard for monitoring OpenCode and Claude Code sessions

updated Apr 2026

claude-image-paste

1
@marcucio

VS Code extension to paste clipboard images into Claude Code terminal sessions, including over Remote SSH

updated Aug 2026

ClaudeExtensions

1
@PrafulSrivastava

Claude Code StatusLine hook that shows model, session cost, context window usage, and git branch in real time.

updated Apr 2026
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