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

8236entries
★ starsA–Z name

claude-code-toolcall-recovery

2
@MufanQiu

Claude Code Stop hook that auto-recovers from malformed tool calls (model emits a tool call as text, e.g. dropping the antml: prefix) instead of stalling the session.

updated Jun 2026

xtapdown-mcp

2
@farukkolip

XTapDown MCP Server — 14 X (Twitter) creator tools for Claude, ChatGPT, Gemini and any MCP client

updated Jul 2026

claude-code-bedrock-usage

2
@abdullahkhawer

A CLI tool to monitor your Anthropic Claude Code on AWS Bedrock usage like tokens consumed, spend per model, and budget status for the current or any past month within seconds in just one single command.

updated Jul 2026

claude-figma-stack

2
@Ootto-AI

Design in Figma, let Claude build the reel, post it & DM every lead — on autopilot. The full stack (Figma↔Claude plugin + content skills + posting + cloud comment automation). Free + MIT.

updated Jun 2026

allincms-content-ops

2
@tony-apan

Portable Claude/Codex/WorkBuddy skill: AllinCMS content ops (raw → wiki → draft → adversarial review → publish → reflect). 6 rounds of adversarial review applied; Karpathy-style living wiki.

updated Jun 2026

skilleval

2
@dileepkpandiya

Objectively test Claude SKILL.md files with blind A/B testing and a randomized judge. Catch regressions before they ship. CI-ready.

updated Jul 2026

anthropic-mirror

2
@ai-native-engineer

Unofficial markdown archive of Anthropic & Claude public materials - news, research, engineering, docs, and Anthropic Academy courses. Auto-updated by the anthropic-mirror skill.

updated Jul 2026

fullstack-deploy

2
@cypggs

Interactive DeployOS website generated by this fullstack-deploy skill — showcasing the 6-phase pipeline from requirements to Vercel production URL.

updated Jun 2026

geng-skills

2
@HoneyMeta

灵感来自"耿同学"学术打假。论文投稿前科研诚信自检 skill:检查 LaTeX/Word 数据造假与图像 PS 痕迹,导出 PDF 报告。AI agent skill for pre-submission research-integrity self-check.

updated Jun 2026

anthropic-openai-proxy

2
@jesuspeterson342-dot

Lightweight FastAPI proxy bridging Anthropic Messages API to OpenAI Chat Completions. Run Claude Code with ANY backend (Ollama, OpenRouter, Abacus) with full SSE streaming & tool calling support.

updated Jul 2026

smooth-scroll-storytelling-skill

2
@ashely-looki

Claude 技能:用原生 HTML/CSS/GSAP 打造 solomei.ai 那种弹性平滑的滚动叙事网页(无需构建)

updated Jul 2026

knowledge-panel-playbook

2
@bensig

The playbook for getting yourself a Google Knowledge Panel. Claude Code skill + universal prompt + templates. Validated by my own panel going live in 10 weeks.

updated Jul 2026

kris-jenner-reply

2
@ashleytheash

💋 macOS Hammerspoon tool: double-tap a key to turn any chat message into a warm, Kris Jenner–style reply written by Claude and auto-pasted into your input box. English + 中文. No keys stored.

updated Jun 2026

findable

2
@obrenoalvim

Claude Code skill that researches and applies SEO improvements automatically to help projects get found online

updated Jul 2026

claude-project-flow-map

2
@lmohamed95

Claude Code skill: map any codebase into a colorful, role-based user-flow diagram — FigJam via Figma MCP, or a Markdown/Mermaid file when Figma isn't set up.

updated Jul 2026

claude-skill-hud

2
@apappas1129

A minimalist status-line HUD for Claude Code that shows which skills Claude invoked while working on your prompt.

updated Jul 2026

claude-context-monitor

2
@siusiuze

VS Code extension that displays Claude Code session model and context usage in the status bar.

updated Jul 2026

claude-code-delegator

2
@bbadler

Long-running delegation architecture for Claude Code: a delegator main session + full-power orchestrator subagents — nested agents that actually delegate, skill-driven spawning, gates, crash-safe resume. Probe-proven physics + cleanroom test harness.

updated Jul 2026

deep-security-check

2
@give-jd

Defensive, read-only security assessment skill for Claude Code (Semgrep + osv-scanner + gitleaks) with a reproducible reliability grade (0-100, A-F).

updated Jul 2026

mythos-delegation-skill

2
@forjd

Agent Skill for Claude Code & AI coding agents: a decision guide for when to delegate to subagents, parallelize agents, or orchestrate multi-agent workflows — and when to just work inline. Install via skills.sh.

updated Jul 2026

lorcana-mcp

2
@IcaroBichir

Connect Claude to Disney Lorcana card data: enrich TCGPlayer exports, look up cards, search the card pool, and analyze/build decks.

updated Jul 2026

uioption-extension

2
@kiliczsh

Chrome extension to inject design variants and inspect UI components on local dev pages — built for AI-assisted coding workflows

updated Jul 2026

countries-api

2
@NanookAI

Agent skill for the free countries.dev API: countries, cities, postal codes, IP geolocation, distances. No API key needed.

updated Jul 2026

code-to-reels

2
@BusyBee3333

Agent Skill that turns prompts into 9:16 animated explainer shorts — entirely in code (Python → SVG → ffmpeg, no browser, no After Effects).

updated Jul 2026
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