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

8240entries
★ starsA–Z name

out-of-band-diffs-vscode-extension

1
@SeekoeiD

Claude Code inline diff review for VS Code with editorInsets-based phantom red rows and per-hunk Accept/Revert controls

updated Jun 2026

AUDITLY-AI-Spend-Audit

1
@IshaMahadev

A brutalist, mathematically-defensible web tool that instantly audits AI infrastructure spend (Cursor, Claude, Copilot) to identify wasted capital and oversized subscriptions. Built with Next.js, Prisma, and Anthropic.

updated Jul 2026

termination-scanner

1
@SamirSaad786

AI-powered termination risk analysis tool for HR professionals. Upload a termination document and receive a structured risk assessment covering legal exposure, documentation gaps, and compliance concerns — powered by the Anthropic Claude API.

updated May 2026

wealthsimple-mcp

1
@tatianathevisionary

Unofficial MCP server exposing the Wealthsimple Help Center to AI agents — 7 typed tools, public Zendesk JSON API only. No scraping, no auth, no account data. TypeScript + Zod-validated. Opt-in Datadog LLM Observability with privacy redaction.

updated Jun 2026

Anthropic-Skills-for-enterprise-marketing-os

1
@afelipeg

30 connected Claude Skills for enterprise marketing ops. Install in-house to replace fragmented tools or reclaim outsourced operations. Marketing & Comms [working & non-working media]· CRM & Growth · Shopper & Trade · RGM · Finance.

updated May 2026

tokenometer

1
@faraa2m

LLM cost calculator, token counter, latency benchmark, CI guardrail, MCP server, and VS Code/Cursor extension.

updated Jul 2026

nocode-evolve

1
@3dot141

Harrison's personal Claude Code plugin: SessionStart hook injects global rules + skills/agents/MCP extension slots

updated Jul 2026

Claude-Skill-Creator

1
@valorisa

A meta-skill for Claude Code (Anthropic CLI) that guides you through creating, testing, and iterating custom skills via structured conversation. Designed with LLM Council methodology: interview intent, generate draft, smoke-test immediately, refine until satisfied. A skill is just a markdown file — this tool embraces that simplicity.

updated May 2026

gohighlevel-mcp-pro

1
@nafiurrahmanniloy

Hardened GoHighLevel MCP server: 566 tools, lean-mode (74% smaller default context), 15 bug fixes, 14 agency-grade composites. Future-proofed for July 2026 webhook auth migration.

updated May 2026

aircrack-mcp

1
@usaidm666

MCP Server for Aircrack-ng WiFi pentesing tools

updated Jun 2026

ai-digest

1
@impendingpunk-debug

A personal AI news briefing app built with vanilla HTML/CSS/JS and the Anthropic Claude API. Fetches live headlines across model releases, research, tools, and tutorials on demand. Features a 7-day rolling archive, tap-to-read article links, and zero backend — just one file, one API key, runs anywhere.

updated May 2026

mem-fusion

1
@muycoreano

Memory fusion for Claude Code — across sessions, cognitive layers, and machines. Personal memory today; group memory via the bundled Constellation extension in v0.3.0.

updated May 2026

crm-job-agent

1
@Konrad2237

Personal tool for finding Polish AI companies and tracking job applications. FastAPI · Next.js · Claude Haiku · SerpAPI.

updated Jun 2026

garmin-mcp

1
@Tyler-Irving

An MCP server that exposes your Garmin Connect health & fitness data to Claude — sleep, HRV, training load, body battery, and more — plus an opt-in tool to build strength workouts. Read-only by default.

updated May 2026

Cairn

1
@Su-Terry

Stop your AI coding agent from creating train_v3_final_FINAL.py. Cairn is a VS Code extension that marks every experiment with a stable waypoint—linking code, results, and intent—so you can find your way back when Claude Code or Cursor have been doing most of the typing.

updated Jun 2026

tabby-claude-status

1
@steven-pribilinskiy

Tabby plugin for visual + audio Claude Code status, plus a companion webapp (snapshot/restore tabs, MCP tool explorer, hook event sink)

updated Jul 2026

AccessLens-RAG-MarketAccessTool

1
@egehankocak99

AccessLens — Production RAG system for EU Market Access intelligence. Synthesizes evidence from PubMed, ClinicalTrials.gov & OpenFDA across EMA, G-BA, HAS, AIFA and more. Hybrid search · Cross-encoder reranking · Claude-powered generation · RAGAS evaluation.

updated May 2026

deny-mcp

1
@deny-sh-crypto

MCP server for deny.sh deniable encryption. Lets any MCP-compatible AI agent call deny.sh tools without exposing real credentials.

updated Jun 2026

anchor-x402-mcp

1
@hypeprinter007-stack

MCP server exposing 9 anchor-x402 services as agent tools. Pay-per-call USDC via x402 on Base mainnet. Works with Claude Desktop / Claude Code / Cursor / any MCP client.

updated Jul 2026

td-universal-toolkit

1
@kalektika

Unified MCP toolkit for TouchDesigner - gives any AI agent live network control, 630-operator knowledge base, and a closed visual feedback loop

updated May 2026

claude-voice-hooks

1
@rachittshah

Voice notifications for Claude Code. Speaks 'done' when a turn ends, 'permission needed' on tool approvals, 'waiting on you' on idle.

updated May 2026

claude-limits-bar

1
@Beattrey

Minimal VS Code extension that surfaces your Claude Code rate-limit usage (5h rolling, weekly, extra credits) in the status bar. Reads OAuth token from macOS Keychain, polls api.anthropic.com. macOS only

updated Jul 2026

claudepulse

1
@cubha

Claude Code Usage Dashboard VS Code Extension — workspace-aware billing, 5h window, project drilldown

updated Jul 2026

pi-claude-jetbrains

1
@Bigsy

Pi extension that connects to the Claude Code JetBrains plugin for IDE diffs, file opening, and diagnostics.

updated May 2026
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