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

8261entries
★ starsA–Z name

verbative-dist

★ 2
@verbative

Release binaries for Verbative — voice control and a fully-local memory engine for the Claude Code CLI in VS Code. Hosts the on-device artifacts the extension and the verbative-memory packages install; no source code here.

updated Sep 2026

metahub-docs

★ 2
@metahub-ai

metahub is building the missing infrastructure for AI tools, in the open — a registry that installs skills, MCP servers, agents and plugins into any harness, free publisher observability, and an eval framework going open source.

updated Aug 2026

panecrew

★ 2
@silvio-l

A grid of real, simultaneously visible terminal panes across projects, with a focus-following file explorer — VS Code extension

updated Sep 2026

uxai-mcp-plugin

★ 2
@IleanaMarcut

An extension of the UX+AI MCP. It makes the 101 methods easy to find and run with / commands.

updated Sep 2026

project-suver

★ 2
@tjromack

A governed AI tool hub that removes the prompt — 16 cited-or-abstain tools across 4 platforms on one no-prompt shell, safe on sensitive data (PII/PHI sanitized before egress), with a measured 20/20 trust eval (0 hallucinations). Live demo included.

updated Sep 2026

codex-pr-review-toolkit

★ 2
@neonwatty

A Codex-native version of Anthropic's Claude PR Review Toolkit.

updated Sep 2026

claude-toolbelt

★ 2
@Malo-T

A belt of unrelated Claude Code plugins: guided branch review, context hygiene, and session status in the terminal tab or by ear.

updated Oct 2026

claude-skills-live

★ 2
@pjdurden

Curated, continuously verified index of Claude Code and Agent Skills tooling. Every entry re-checked daily; anything archived, deleted or 90 days quiet is flagged and delisted.

updated Oct 2026

cogs

★ 2
@mbsdeepak

A minimal but real LLM agent runtime — the core of a coding-agent harness (agent loop, typed tool protocol, provider abstraction, context management, permissions, and deterministic record/replay) in ~1.5k readable lines of Python.

updated Aug 2026

visiyonai

★ 2
@visiyondotcom

Self-hosted AI assistant platform — chat, image gen, voice, RAG & tools, all running on your own GPU with Ollama.

updated Aug 2026

patcher-browser

★ 2
@laruss

The browser that writes its own extensions.

updated Sep 2026

edge-translate-extension

★ 2
@NJX912

based on claude code

updated Aug 2026

best-practice-skill

★ 2
@starsinc1708

An Agent Skill that applies Anthropic's documented best practices for building with Claude: model and effort selection, prompt construction, subagent delegation, tool design, evaluation and guardrails.

updated Sep 2026

seedance-prompt-forge

★ 2
@silentbuilds

Seedance 2.5 prompt optimizer and Agent Skill for Dreamina—write, audit, and repair text-to-video, reference-video, editing, extension, and multimodal prompts.

updated Sep 2026

picc

★ 2
@Ladbaby

🧩Tracker-Free Drop-In Replacement for Claude Code: Decompose Claude Code's Harness into Open Source Extensions of Pi Agent.

updated Oct 2026

chrome-extension-builder

★ 2
@Thealvarro

Crea tu primera extensión de Chrome con ayuda de IA. No necesitas saber programar. AgentKit para Claude Code, OpenAI Codex y OpenCode.

updated Oct 2026

webrtc-inspector

★ 2
@zoharbabin

Debug and fault-test any WebRTC session — Chrome extension, MCP server for AI coding agents, npm library, and Playwright plugin. Live RTCPeerConnection/WebSocket inspection, reconnect testing, network-loss simulation.

updated Sep 2026

agentabacus

★ 2
@tripleaceme

Local-first analytics for AI coding agents. Reads the session logs already on your disk — cost, cache efficiency, and tool-call effectiveness across Claude Code, Codex and more. No server, no account.

updated Sep 2026

gatekeeper

★ 2
@Gldywn

Human-approved bridge between AI agents and your database through Beekeeper Studio.

updated Oct 2026

OmniProxy

★ 2
@mxuanvan02

OmniProxy — Multi-provider gateway for Claude CLI & AI coding tools. Routes requests across Kiro (AWS), Codex (ChatGPT subscription), and external OpenAI-compatible providers with load balancing, token usage tracking, and a web admin dashboard.

updated Oct 2026

apple-ads-mcp

★ 2
@imfaisii

Apple Ads Platform API MCP server. All 99 operations (Apple Search Ads + Apple Maps brand ads) exposed to Claude, Cursor and any MCP client through 4 token-efficient tools.

updated Sep 2026

chatgpt-web-handoff

★ 2
@sologuy

Hand your coding agent's context to the ChatGPT Web session already logged in in your Chrome — and pull a structured verdict back. Raw CDP, no extension, stdlib-only. 把编码 agent 的上下文交接给已登录的 ChatGPT Web 做独立审查。

updated Sep 2026

dietclaudecli

★ 2
@RO-29

A Diet Coke can that drains as you use your Claude limits — Claude Code status line, a live can in the terminal, and a floating macOS overlay. Unofficial CLI port of the Diet Claude extension.

updated Sep 2026

mcp-firefly-iii

★ 2
@YakupEmreYerli

Security-first, self-hosted MCP server for Firefly III — 152 operations behind 5 scoped tools, with stdio and authenticated HTTP.

updated Oct 2026
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