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

ResearchX

1
@xingguangYan

ResearchX — AI Research Operating System. Literature-driven AI research assistant for full scientific lifecycle.

updated Jun 2026

agent-kit

1
@wpalish

Multi-agent orchestration framework for Claude — tool registry, memory, parallel runners, orchestrator/worker topology

updated Jun 2026

navflow-cookbooks

1
@glassflow

Companion cookbooks that take a provider's agent, swap only its read path for one NavFlow query, and measure the difference on a real running system. Includes a self-contained SRE incident-response benchmark — four injectable faults, provider-style tool fan-out vs. one correlated query

updated Jul 2026

patchistry-mcp-server

1
@patchistry

Patchistry MCP server — AI agent commerce tools (list canvases, list patches, recommend builds, shipping, contact). Built with Model Context Protocol SDK. Deployable to Vercel free tier.

updated Jul 2026

chatpanel-bridge

1
@chatpanel

Local bridge for the ChatPanel Chrome extension (Claude Code + Codex)

updated Jul 2026

pi-dynamic-workflow

1
@mbenetti

Pi extension to built with pocketflow dynamically workflows. Inspired on Anthropic's dynamic harness: https://claude.com/blog/a-harness-for-every-task-dynamic-workflows-in-claude-code

updated Jun 2026

ember-browser

1
@Wrenbjor

Chrome extension + local MCP server that lets any AI (Claude Code, Gemini CLI, or your own local LLM) drive your real browser session — no Playwright, no separate profile. Screenshots, page snapshots, clicking and typing with a visible cursor, plus a side-panel chat assistant for any OpenAI-compatible local model (Ollama, LM Studio, vLLM).

updated Jun 2026

sufficit-vscode-symposium

1
@sufficit

Symposium (συμπόσιον) — VS Code extension hosting dialogue sessions with multiple AI agent CLIs (Claude Code, Codex, Copilot)

updated Jul 2026

mcp-security-scanner

1
@lorbeere711

The npm-audit for MCP servers: scan AI agent tools for dangerous permissions, prompt injection, and data exfiltration risks.

updated Jun 2026

proxmox-mcp-server

1
@k-krawczyk

MCP server exposing Proxmox VE management as tools over stdio

updated Jun 2026

ai-setup-sync

1
@olekpuchka

VS Code extension that syncs AI setup files and MCP configs (Claude Code, Copilot, Cursor, Codex, Antigravity and more) from a GitHub repo into every project automatically.

updated Jul 2026

anthropic-clj

1
@jsavyasachi

Idiomatic Clojure wrapper over the official Anthropic Java SDK - messages, streaming, tools, batches, files, structured output

updated Jul 2026

Find-Evil-Hackathon

1
@joshfrogers

A Python CLI orchestrator that drives Claude (via the Anthropic API) through hypothesis-driven forensic investigations on the SIFT workstation. The LLM decides what to investigate and how to interpret results. The Python code controls what can be executed and what tools are available.

updated Jun 2026

pulsereport

1
@morgunglyeb-arch

Agentic TypeScript pipeline · daily sales KPIs by code, narrative by Claude or Groq, delivered to Telegram, Slack and Email.

updated Jun 2026

chatpanel-extension

1
@chatpanel

ChatPanel — Chrome/Edge side-panel chatbot for Claude Code, Codex, Gemini CLI & BYO models. Source-available (FSL-1.1).

updated Jul 2026

mcp-curate

1
@tarundattagondi

Turn an OpenAPI/Swagger spec into a high-quality, curated MCP server — consolidates endpoints into clear tools and proves it with an eval harness.

updated Jun 2026

telegram-mcp-claude

1
@TAIPANBOX

MCP server giving Claude full Telegram tools (read/send/edit/pin/react/files)

updated Jul 2026

claude-code-nest

1
@jakemismas

VSCode extension that adds a virtual organization layer (folders, tags, links, and read-only smart groups) over Claude Code chat sessions, so 50+ chats stop overflowing the tab bar. Strictly read-only on Claude's transcripts.

updated Jul 2026

pg-extension-lab

1
@ysys143

A harness for testing, benchmarking, and tuning PostgreSQL extensions in an isolated, reproducible environment.

updated Jun 2026

claude_harness_proxy

1
@philemon1977

Enhance the tool-calling capabilities of your Claude Code, enabling it to deliver performance comparable to or even surpassing Anthropic Opus 4.7 when utilizing APIs of other models such as Qwen, DeepSeek, Kimi, and Gemma.(增强你的claude code的工具调用能力,让你使用qwen、deepseek、kimi、gemma等其它模型api时,能够获得接近甚至反超anthoropic opus 4.7的水平。)

updated Jun 2026

coder-crew

1
@Diamonqq

A local-first agentic coding crew: a manager model plans, worker models build with real tools, and every subtask is gated on a runnable test — unverified work is never counted as passed. Local via Ollama; an optional Claude/Opus manager catches incomplete-test bugs.

updated Jul 2026

claude-slack-daemon

1
@xingbuilds

Reach your own Claude Code from a Slack DM — local brain, your tools & memory, Socket Mode, single-owner. MIT.

updated Jun 2026

sreeram-agent-skills

1
@sreeramg-hub

Reusable patterns for personal agentic automations — YouTube monitoring, free transcription, CrewAI tools, GitHub Actions scheduling, and attributed-sentiment prompting

updated Jul 2026

DedupeAI

1
@riteshekbote

Burp Suite extension + port-based highlighter: dedupes HTTP history into a live unique-request feed and color-codes attacker/victim traffic by listener port (PwnFox-style) — built for Android/iOS multi-account IDOR/BOLA testing, with Magic Cookie, Match & Replace, and .http export for Claude Code / AI.

updated Jun 2026
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