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

datetime-mcp

1
@Eyalm321

MCP server providing datetime awareness via tools and resources

updated Jun 2026

claude-ui-tool

1
@esolnguyen

Full-stack web UI for managing Claude Code configuration agents, commands, skills, workflows, MCP servers, and settings with built-in terminal and chat.

updated May 2026

my-cc-extension

1
@John1Q84

my claude code extensions

updated Jun 2026

claude-mcp-starter

1
@JustDreameritis

Clean MCP server template for Claude Code and Claude Desktop — 6 example tools, extensible architecture, ready to fork

updated Apr 2026

hydra

1
@kai-linux

Self-extending AI agent that writes, validates, and hot-loads its own Python tools at runtime. Built with PydanticAI + MCP.

updated Apr 2026

AbhiMeet

1
@abhishekjoshi-eng

Free open-source meeting recorder with AI transcription & reporting. Fireflies.ai alternative. Records audio + screen, transcribes with Whisper AI in 90+ languages, generates meeting minutes via Claude MCP. No subscription, 100% local.

updated Apr 2026

grounding-ai

1
@andyliszewski

Local-first document corpus pipeline for grounded AI agents

updated Jun 2026

create-chrome-extension

1
@codyhxyz

Six skills that scaffold a Chrome extension, fill the listing copy, capture screenshots, set up Chrome Web Store OAuth, and orchestrate submission. Pairs with the cce-factory WXT template.

updated Aug 2026

aeroftp-mcp

1
@axpdev-lab

VS Code extension to install and configure the AeroFTP MCP server for Claude Code

updated Aug 2026

go-skills

1
@chafingdishposition355

Build pragmatic Go apps with an idiomatic, flat project layout guide for clean code, clear flow, and maintainable APIs

updated Aug 2026

claude-code-bridge-mcp

1
@rahuljava2807

MCP server that pipes Claude Code session output into Claude Chat — no more copy-paste between tools

updated Apr 2026

vercel-ai-gateway-proxy-with-claude-subscription

1
@wiiiimm

Use your Claude subscription (Max/Pro/Team) with any Anthropic-compatible tool through Vercel AI Gateway. Drop-in Docker sidecar proxy.

updated Aug 2026

cachly-vscode

1
@cachly-dev

Cachly Brain — VS Code extension for AI memory monitoring. See lessons, recall counts, token savings, and storage usage in your status bar.

updated Aug 2026

Snapmark

1
@rajitha302

Annotate screenshots on your clipboard before pasting them into AI chats.

updated Jul 2026

gptcc

1
@joungminsung

GPT for Claude Code — use OpenAI GPT models inside the Claude Code CLI via documented extension points (ANTHROPIC_BASE_URL, ANTHROPIC_CUSTOM_MODEL_OPTION, plugin hooks). Cross-platform, no binary modification. MIT.

updated Apr 2026

flibbertigibbeting-discord-status

1
@Achilleees

Your Discord status, now Flibbertigibbeting - VS Code extension that shows Claude Code's spinner words as Discord Rich Presence.

updated Aug 2026

claude-code-auto-authorize

1
@danbuhler

Chrome extension that auto-clicks the Authorize button on Claude Code OAuth pages

updated Jul 2026

claude-code-course

1
@Bharathi-vbr

Hands-on Claude Code course project — CLI chat assistant with MCP server/client integration, tool use, and document management using the Anthropic API.

updated Apr 2026

agent-estimation-skill

1
@adrozdenko

Claude Code skill: estimate agent work in tool-call rounds, not human hours

updated Apr 2026

Prizmad-MCP-server

1
@prizmad

Generate AI UGC video ads from any product URL via the Model Context Protocol. 50+ avatars, ElevenLabs voiceover, multiple caption / music / CTA / image styles. OAuth 2.1 + DCR Connect flow for Claude Desktop, Claude.ai, ChatGPT, Cursor, Zed; npm stdio bridge for headless API-key flows.

updated Aug 2026

Engram-Memory-OS-for-Claude-Code

1
@Abhion24

⚡ Persistent Memory OS for Claude Code — Auto-indexes codebases, records session decisions, and injects relevant context automatically. Zero-config VS Code extension + React dashboard.

updated Apr 2026

skill-harness

1
@blinnieinfertile577

Bootstrap the 45ck agent stack with shared skills, Claude and Codex agents, project tooling, and embedded packs

updated Aug 2026

Anthropic-Readlist-Tracker

1
@YuriNek0

Personal Tools for tracking Anthropic Courses and Claude Cookbooks.

updated Aug 2026

video-extract-agents

1
@cibis

AI-powered video extraction platform - CrewAI agents, MCP/SSE tools, Claude (Anthropic), AWS Bedrock, Angular, Node.js, Python, FFmpeg, Azure Container Apps

updated May 2026
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