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

data-analyst-agent

1
@xuchiyu1

An AI agent that analyzes CSVs from natural-language questions — it picks tools, writes & runs pandas code, self-corrects on errors, and returns answers + charts. Python · Claude · Streamlit.

updated Jul 2026

ModelPing

1
@vdeng-ai

Lightweight web tool to test LLM API connectivity, latency & token usage — OpenAI, Gemini, Anthropic & compatible. Deploy free on Cloudflare Workers / Vercel. 轻量级网页工具,用于测试LLM API的连接性、延迟与Token消耗——兼容OpenAI、Gemini、Anthropic等平台。可免费部署在Cloudflare Workers或Vercel。

updated Jul 2026

fabri

1
@Rushour0

Local memory + orchestration layer for custom LLM agents: SCOPE-style tactical/strategic memory over execution traces, Qdrant-backed, polyglot subprocess tools, agent-as-tool composition.

updated Jul 2026

agent-extension-api

1
@abolfazl-moeini

omprehensive developer documentation for extending VS Code, Cursor, Claude Code, OpenAI Codex, Anthropic Claude, xAI Grok, and MiniMax via Skills, MCP, and plugins.

updated Jun 2026

pi-model-router

1
@Davidcreador

Dynamic, task-phase model routing for Pi.

updated Jun 2026

ai-cli-cheatsheet-extension

1
@jindawn

Browser extension for offline AI CLI cheatsheet — Claude Code, Codex, Gemini, OpenCode shortcuts & commands, with auto-add via Claude Code

updated Jul 2026

odoo-pulse

1
@minhhq-a1

An AI business analyst for your Odoo ERP — one-call reports with verdicts, over MCP

updated Jul 2026

claude-code-extensions-video

1
@zyiyi-dev
updated Jul 2026

claude-p-gateway

1
@preston176

Self-hosted Anthropic-compatible HTTP gateway that proxies /v1/messages to a locally-authenticated `claude -p`, so a Claude.ai subscription powers your tooling instead of metered API credits.

updated Jul 2026

jeffrey-censor-extension

1
@sayhi7562

A project that wants to test Claude code by writing code to follow the prompt

updated Jun 2026

ClaudeForge

1
@cziraattila123-cell

A professional CLI tool for developers to interact with the Anthropic Claude API

updated Jun 2026

Camel

1
@AmirHosein-Lotfi

Three Claude Code skills that cut tool-call and agent overhead without touching code quality

updated Jun 2026

hpsilab-quant-finance-mcp

1
@haiyunsky

Quant finance MCP server for stock analysis, options analytics, implied volatility, Monte Carlo simulation, AI prediction, and backtesting.

updated Jul 2026

spinix-vscode

1
@pranavred

Open client source of the Spinix VS Code / Claude Code extension — pings you when your AI agent finishes and shows perks/offers on the spinner. Backend is separate.

updated Jul 2026

claude_for_phcode

1
@ryuuiro

extensión claude code para phoenix code

updated Jul 2026

mcp-analytics-server

1
@tkarim45

An MCP (Model Context Protocol) server exposing a SQLite analytics DB as safe, schema-typed tools (read-only SQL guard, auth-gated mutations) + a Claude agent that consumes it.

updated Jul 2026

claude-box

1
@Kovaloff

Run Claude Code in a throwaway Docker container that can see **only the project directory you point it at** — no VS Code extension, no Claude Desktop, no access to the rest of your machine, and a **default-deny network firewall** so it can't phone home to anywhere except the Anthropic API.

updated Jun 2026

resend-mcp-server

1
@blw10210

Claude generated Resend MCP Server for Claude Cowork

updated Jun 2026

kie

1
@aryangv

Trending dev-tool radar + Claude Code extension recommender, as a keyless MCP server for Claude Code and Cursor

updated Jul 2026

pi-permission-modes

1
@aprimediet

Claude Code style permission modes extension for pi coding agent

updated Jul 2026

compliance-watch

1
@robertogfortes

Contract and invoice compliance auditor built with Claude API. Hybrid RAG, tool use, MCP server, prompt evaluation, extended thinking. Full pipeline — not a chatbot.

updated Jul 2026

structured-output-eval

1
@tkarim45

Benchmark LLM structured-output reliability: valid-JSON/schema-adherence/field-accuracy across plain → schema-in-prompt → native → strict-tool strategies, under adversarial inputs. Claude.

updated Jul 2026

extensions

1
@yarrasys

Open-source agent skills for Claude Code & the AI-agent ecosystem. Install: npx skills add yarrasys/skills@<name>. First skill: kdbx (per-project/per-env KeePassXC credentials).

updated Jul 2026

MasterRtl

1
@morpheusadam

Master RTL — a VS Code extension that renders the Claude Code chat panel and Markdown files right-to-left.

updated Jul 2026
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