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

8241entries
★ starsA–Z name

promode

20
@mikekelly

A Claude Code plugin designed to make efficient use of Fable on usage credits.

updated Jul 2026

rpikit

20
@bostonaholic

A Claude Code plugin implementing the Research-Plan-Implement (RPI) framework for disciplined software engineering.

updated Jul 2026

shipspec-claude-code-plugin

20
@jsegov

Spec Driven Development Plugin for Claude Code

updated Jun 2026

claude-code-extensions

20
@johnlarkin1

A repo for me but also anyone else that is curious about what CC commands + skills + plugins that I commonly use. Feel free to download from the plugin marketplace as welll

updated Jun 2026

kate-code

20
@undefinedopcode

A Claude Code plugin for the Kate Editor leveraging Zed Industries claude-code-acp.

updated Jul 2026

se-cove-claude-plugin

20
@vertti

SE-CoVe: Software Engineering Chain-of-Verification plugin for Claude Code

updated Jul 2026

mnemonic

20
@modeled-information-format

Persistent filesystem-based memory system for Claude Code. Pure MIF Level 3 compliant memory storage with YAML frontmatter, bi-temporal tracking, and proactive hooks. No dependencies - just markdown files and git.

updated Jul 2026

arize-claude-code-plugin

20
@Arize-ai

Arize Claude Code Plugin

updated Jun 2026

aidlc-cc-plugin

20
@ijin

AI-DLC (AI-Driven Development Life Cycle) claude code plugin

updated Jul 2026

claude-code-sound-packs

20
@moonshot-partners

Add themed sound effects to Claude Code sessions via hooks. Warcraft, C&C Generals, and more

updated Jul 2026

claude-md-optimizer

20
@wrsmith108

Claude Code skill for optimizing oversized CLAUDE.md files using progressive disclosure

updated Jul 2026

claude_ai_usage_widget

20
@StaticB1

2-in-1 for Claude Code: a live system-tray usage widget (5h/7d plan limits) + local token & cost analytics — per project/model/tool, budgets, forecasts. Unofficial; not affiliated with Anthropic.

updated Jul 2026

opik-claude-code-plugin

20
@comet-ml
updated Jul 2026

fsociety

20
@ogrodev

Multi-plugin marketplace for Claude Code offensive security plugins

updated May 2026

mach10

20
@LeanAndMean

Claude Code plugin for structured, AI-driven software development. Orchestrates complex workflows -- from issue assessment to staged implementation to review and merge -- giving developers the speed of full automation with the control of human-in-the-loop checkpoints.

updated Jul 2026

PlanKit

20
@FlineDev

Ideas → Roadmap → Steps — a planning plugin for Claude Code

updated Jun 2026

remem

20
@majiayu000

Local-first persistent memory for Claude Code & Codex CLI - Rust CLI, hooks, MCP server, SQLite/SQLCipher, auditable recall for long-running coding work.

updated Jul 2026

awesome-claude-cowork-plugins

20
@alexclowe

Profession-specific AI plugins for Claude Cowork — pharmacists, PTs, real estate agents, and more

updated Jul 2026

sanitize

20
@vxcozy

12-point pre-commit hook and Claude Code skill for blocking secrets, credentials, and sensitive data

updated May 2026

mailchimp-mcp-server

20
@damientilman

The most complete Mailchimp Marketing API MCP server: 227 tools across campaigns, audiences, reports, segments, automations and full e-commerce, with multi-account support and runtime-security guardrails (read-only, dry-run, audit, per-tool risk metadata).

updated Jul 2026

claude-cognis

20
@Lyzr-Cognis

A Claude Code plugin that gives your AI persistent memory across sessions using Cognis. Your agent remembers what you worked on - across sessions, across projects.

updated Apr 2026

yet-another-agent-harness

20
@dirien

A Go agent harness for Claude Code — runtime hooks, MCP server, session tracking, middleware chains, and full config generation in one binary

updated Jul 2026

svelte-lsp

20
@RA1NCS

Claude Code plugin for Svelte LSP support — go-to-definition, hover docs, find references on .svelte files

updated Jul 2026

claude-code-aws-gateway

20
@antkawam

Self-hosted API gateway for Claude Code on Amazon Bedrock — unlock extended thinking, web search & tool use with team budgets, OIDC SSO, and an admin portal

updated Jul 2026
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