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

fs25-claude-skill

1
@70th-starter999

Automate Farming Simulator 25 mod development using a Claude skill trained on game APIs and common coding patterns.

updated Jun 2026

data-skills

1
@eduardocornelsen

Turn Claude Code into a senior data science team. Playbooks, personas, and guardrails that guide Claude through every phase of a data science project — from problem framing to production monitoring. No coding experience required.

updated May 2026

gh-tasks

1
@ozzy-labs

GitHub CLI extension and skill bundle to manage tasks across GitHub Projects v2, Issues, and Milestones — for personal todos, single-project work, and cross-project coordination. Distributed for Claude Code, Codex CLI, GitHub Copilot, and Gemini CLI.

updated May 2026

how-to-harness

1
@dimayip

An agent skill for Claude / Codebuddy — Socratic facilitator for designing Harness-style closed-loop, self-optimizing, human-steer + agent-execute systems (Ralph loops, LLM-as-judge, tiered automation).

updated May 2026

annotate-for-agent-vs-code

1
@saimageshvar

VS Code extension to annotate agent-generated code and export structured feedback for agents (Claude Code, Cursor, etc.)

updated May 2026

A-Behavioral-Code-for-AI-Coding-Agents

1
@gao725216-afk

A value-driven Skill for AI coding agents (Claude Code / Codex) — eight principles to build discipline, honesty, and resilience into every line of code.

updated Apr 2026

linkedin-competitor-analyzer

1
@akansh7

Self-hosted tool for tracking LinkedIn competitor engagement, identifying ICP contacts, and exporting leads — powered by Apify and Claude AI

updated May 2026

jupyterlab_claude_code_extension

1
@stellarshenson

JupyterLab 4 extension - Claude Code session management side panel

updated May 2026

free-claude-code

1
@imajus

Use claude-code for free in the terminal, VSCode extension or via discord like openclaw

updated May 2026

claude-quotas

1
@FruityMaxine

A Claude Code plugin that gives Claude a self-introspection tool for its own subscription quota — so it can warn you before a long task runs out of budget.

updated May 2026

claude-power-setup

1
@mishasuperficial646

Orchestrate multi-agent workflows and automate complex pipelines for Claude Code with recursive self-improvement tools.

updated Jun 2026

equity-research-like-me

1
@rahulmajethia

Institutional-grade equity research skill for Claude — fundamentals-first company and sector analysis

updated May 2026

oracle-skills-ptbr

1
@Maxwbh

Skill PT-BR para Claude com padrões Trivadis 4.4 — desenvolvimento Oracle (PL/SQL, APEX, ORDS, DBA, Tuning, Trivadis, DevOps)

updated May 2026

ikuai-router-skill

1
@lenzhang

Agent skill + Python helper for the iKuai router private API — 14 domains, 105 verified func_names

updated May 2026

altman-mode

1
@Tarcroi

Altman-mode for Claude Code — a CLAUDE.md and a brutal startup evaluator skill. Inspired by publicly discussed Sam Altman principles.

updated May 2026

supply-chain-forecast-diagnosis

1
@ESFlow97

The first Claude Custom skill for supply chain forecast dianosis. Automates WMAPE, FVA, and ABC segmentation using Python and AI.

updated May 2026

caveman-skill

1
@Ricarddefensive803

Optimize development performance by stripping away unnecessary abstractions and focusing on raw code execution.

updated Jun 2026

oracle-26ai-helper-ptbr

1
@Maxwbh

Skill PT-BR para Claude — Oracle AI Database 26ai (AI Vector Search, JSON Relational Duality, RAFT replication)

updated May 2026

obsidian-theme-designer

1
@Ridingbittknightsservice6966

Design custom Obsidian themes visually in your browser with live previews. Build CSS styles through a guided workflow without writing code.

updated Jun 2026

claude-terminal-panel

1
@NgVB1408

Standalone Electron terminal app + VS Code extension cho Claude Code, multi-account, MCP tools, encrypted API keys

updated May 2026

codex-oauth-automation-extension

1
@Positive-sagitta8171

Automate OpenAI OAuth registration and login flows with this Chrome extension supporting multiple email providers, verification polling, and error recovery.

updated Jun 2026

super-bootstrap

1
@RockyHong

Claude Code plugin: one command scaffolds CLAUDE.md, picks skills/MCPs for your stack, and adds a route-aware workflow with doc-sync commit gate.

updated May 2026

paul-graham-skills

1
@WinterDDo

Paul Graham, distilled — 5 Claude Code skills + 6 principles from his essays

updated May 2026

gmc-mcp

1
@kiwoongeom

The first free, open-source, self-hosted MCP server for Google Merchant Center (GMC). 126 tools over Merchant API v1 — products, inventory, reports, promotions, returns, account config, audit log + rollback, dry-run. Free alternative to paid SaaS (Adzviser, Catchr, Windsor.ai, Pipedream).

updated May 2026
← PREV01...289290291292293...341NEXT →