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

8165entries
★ starsA–Z name

buy-me-a-car

1
@DaizeDong

Claude Code plugin: end-to-end used car buying — multi-site research, mass dealer outreach, OTD negotiation with 50-state fee data, CARFAX analysis, decision tracking

updated May 2026

pi-anthropic-tool-search

1
@code-yeongyu

Anthropic native tool-search policy extension for the pi coding agent. Conditionally injects Anthropic tool-search tools based on PI_ANTHROPIC_TOOL_SEARCH and appends tool-search guidance to the system prompt.

updated May 2026

tokenvision

1
@Zarenk

Per-project token usage tracker for Claude Code — live monitor, weekly budget, context-drain diagnostics. Desktop (Electron) + CLI + Chrome extension.

updated May 2026

claude-goal

1
@nuko-nova-dynamics

Goal-bounded autonomous turns for Claude Code — set an objective, set a budget, walk away. Stop-hook continuation engine + tool-equipped completion evaluator.

updated May 2026

magic-api

1
@Magic-Markets-Public

Claude skill + reference docs for the MagicMarkets REST & WebSocket API — place orders, manage heartbeats, stream live prices.

updated May 2026

social-media-scraper-skill

1
@elbis330

🔍 Claude Code skill that scrapes any social media post — metadata, comments, transcription & AI video analysis. Drop a link, get everything. Instagram · TikTok · Twitter/X · YouTube

updated May 2026

Obsidian-mcp

1
@bdwalter

Obsidian community plugin: exposes the vault to Claude (and any MCP client) as a local Streamable HTTP MCP server. Tools, resources, prompts.

updated May 2026

common-sense-skill

1
@cfilipemt

One file. 9 questions. Stops AI agents from doing the obviously-wrong thing. MIT. Works with Claude Code, Codex, Cursor, OpenClaw.

updated May 2026

claude-code-env-precheck

1
@Gray7071

A professional environment auditing skill for Claude Code to prevent dependency issues before coding starts.

updated May 2026

deck-pipeline

1
@TinaDu-AI

Production-grade Claude Code skill for CN→EN deck globalization with McKinsey polish and layout audit. 4-stage pipeline (Sense → Translate → Audit → Handoff); swappable PROFILE block; polish-only mode for single-language decks.

updated May 2026

claude-rules-injector

1
@hinanohart

Auto-inject 'critical rules' into every Claude Code turn via UserPromptSubmit hook. Tiny, auditable, MIT, fork-friendly. Includes r-check skill for on-demand rule lookup.

updated May 2026

prompt-cache-optimizer

1
@leonhail-nell

Drop-in wrappers for the Anthropic, OpenAI, and Gemini SDKs that make prompt caching effortless. Measure real cache hit rate from the response usage object, attach dollar savings to every call, canonicalize shuffled tools and RAG document order so a "slightly different" payload still hits the cache.

updated May 2026

pin-comments

1
@djxky

为 HTML demo 一键加上多人在线评论:贴 Pin / 回复 / 状态流转 / 跨页跳转,基于 Supabase,BYOSupabase,无共享后端。Cursor & Claude Code skill。

updated May 2026

claude-code-hooks

1
@gerard-labs

Type-safe Claude Code hooks for PHP. Every event, every tool input, every response — fully typed, mutation-tested, and kept in sync with the Anthropic spec by a daily drift job.

updated May 2026

skills

1
@kirollosatef

Curated, eval-tested collection of agent skills for Claude Code, Cursor, Codex, Cline, and 36+ more AI agents. Drop-in capabilities your agent can invoke automatically.

updated May 2026

mini-agent

1
@Firstp1ck

A minimal Python coding agent that runs an interactive loop with Anthropic (Claude) or OpenAI (GPT). The model gets four local tools: read_file, list_files, edit_file, and bash. It emits textual tool calls; this program runs them and feeds results back into the conversation.

updated May 2026

nudgr

1
@Bobby-Gray

Local-first task scheduling, calendar sync, and unattended Claude Code session launch.

updated May 2026

anlora-skills

1
@Stanglovicc

Agent Skills for OnlyFans talent agency operations — referenced from meetanlora.com/.well-known/skills/index.json

updated May 2026

gh-tendr

1
@Bobby-Gray

Async design review and implementation loop between you and Claude, mediated by GitHub Issues.

updated May 2026

claude-wayfinder

1
@glitchwerks

Deterministic, auditable agent/skill dispatch for Claude Code. A typed seven-decision scoring kernel runs after the router has read the conversation — post-cognitive routing instead of prose-scanning. Auto-generates its catalog from skill sidecars and agent frontmatter.

updated May 2026

claude-auto-plan-mode-ui

1
@PettHa

Companion VSCode extension that patches Claude Code's webview to add an Auto plan mode entry to the mode picker

updated May 2026

Skills

1
@songshishuang

AI 产品经理的 Claude Skills 集合 · PRD 写作 / 项目脚手架 / SaaS 架构图 / 高保真原型 / 对话归档(5 个自创 skill,蒸馏自wdy Claw、JMaaS、SCRM 等实战项目)

updated May 2026

claude-code-flutter-guide

1
@utpal-barman

A practical setup guide for Flutter developers using Claude Code — Anthropic's terminal-first AI pair programmer. Covers CLAUDE.md, skills, subagents, MCP, hooks, and Flutter-specific workflows.

updated May 2026

claude-skill-teams

1
@tomc98

Claude Code skill: orchestrate parallel teams of Claude agents — breadth/depth/mixed strategies, task coordination, optional per-agent TTS

updated May 2026
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