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anthropic GitHub repositories

Explore 132 tracked GitHub repositories tagged anthropic. Compare their recorded star activity and implementation languages, then follow related topics to find other projects.

Snapshot: 2026-10-28. The collection gained 3,152 stars since the previous daily snapshot.

Tracked repositories: 132
Total stars: 1,828,597
Stars gained · 7 days: +21,028
Stars gained · 30 days: +87,947

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Star activity for anthropic repositories on this page
Repository	Total stars	Today	7 days	30 days
affaan-m/ECC	290.9K	+1,042	+5,969	+22,463
NousResearch/hermes-agent	257.7K	+335	+2,163	+8,250
thedotmack/claude-mem	103.7K	+300	+1,763	+8,924
JuliusBrussee/caveman	115.5K	+237	+1,679	+7,470
rtk-ai/rtk	84.8K	+133	+700	+2,954

Explore repositories

Showing 1–50 of 132 tracked repositories.

affaan-m/ECC

The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

★ 290.9K+1,042 todayJavaScript

NousResearch/hermes-agent

The agent that grows with you

★ 257.7K+335 todayPython

thedotmack/claude-mem

Persistent Context Across Sessions for Every Agent – Captures everything your agent does during sessions, compresses it with AI, and injects relevant context back into future sessions. Works with Claude Code, OpenClaw, Codex, Gemini, Hermes, Copilot, OpenCode + More

JuliusBrussee/caveman

🪨 why use many token when few token do trick. Viral skill + proxy for coding agents that cuts 65% of tokens by talking like a caveman.

★ 115.5K+237 todayGo

rtk-ai/rtk

CLI proxy that reduces LLM token consumption by 60-90% on common dev commands. Single Rust binary, zero dependencies

★ 84.8K+133 todayRust

llm claude-code

can1357/oh-my-pi

⌥ Coding agent with the IDE wired in. Built by Stencil Labs.

★ 36.8K+121 todayTypeScript

headroomlabs-ai/headroom

Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95% fewer tokens for JSON, same answers. Library, proxy, MCP server.

BerriAI/litellm

The fastest, litest AI Gateway. Rust core with Python SDK. Call 100+ LLM APIs in OpenAI (or native) format with cost tracking, guardrails, load balancing, and logging [Bedrock, Azure, OpenAI, Anthropic, OpenAI, VertexAI, vLLM, Nvidia NIM]

★ 62.2K+98 todayPython

mnfst/awesome-free-llm-apis

List of Permanent Free LLM API (API Keys)

★ 11.4K+73 todayJavaScript

decolua/9router

Unlimited FREE AI coding. Connect Claude Code, Codex, Cursor, Cline, Copilot, Antigravity to FREE Claude/GPT/Gemini via 40+ providers. Auto-fallback, RTK -40% tokens, never hit limits.

★ 31.5K+66 todayJavaScript

hesreallyhim/awesome-claude-code

A hand-picked collection of the finest of resources for the most awesome of agents, Claude Code, the undisputed champion of coding companions, from the unstoppable team at Anthropic PBC (no affiliation). A delectable showcase of top tier skills, ambidextrous agents, scintillating status lines, top notch developer tooling, and also we have plugins

langchain-ai/langchain

The agent engineering platform.

★ 148.6K+48 todayPython

asgeirtj/system_prompts_leaks

Documented system prompts from Anthropic - Claude Fable 5.1, Opus 5.5, Claude Design, Claude Code. OpenAI - ChatGPT GPT-6-Astra, Codex. Google - Gemini 3.8 Flash, 3.1 Pro, Antigravity. xAI - Grok, Grok Bot, Cursor, Kimi and more! Updated regularly.

★ 70.3K+46 todayPython

trailhq/Trail-Code

Turbocharge Claude Code, Cursor, Codex, Gemini & every coding agent: faster, cheaper, with contextual understanding specific to your codebase.

★ 10.8K+36 todayTypeScript

lidge-jun/opencodex

Universal provider proxy for OpenAI Codex & Claude Code — use any LLM (Claude, Gemini, Grok, DeepSeek, Ollama…) with Codex CLI, App, SDK, and Claude Code

★ 18.0K+34 todayTypeScript

llm claude-code

CoplayDev/unity-mcp

Unity MCP acts as a bridge between AI assistants and your Unity Editor. Give your LLM tools to manage assets, control scenes, edit scripts, and automate tasks within Unity.

★ 15.5K+27 todayC#

gakonst/nanocode

SDK for Frontier Embedded Agents.

★ 630+27 todayRust

vercel/ai

The AI Toolkit for TypeScript. From the creators of Next.js, the AI SDK is a free open-source library for building AI-powered applications and agents

★ 27.5K+23 todayTypeScript

NanmiCoder/cc-haha

本地优先的跨平台 Claude Code / AI Agent 桌面工作台：多 Agent 协作、Git Worktree、代码 Diff、技能市场、多模型、Computer Use、桌面宠物；支持微信、飞书、钉钉及 H5 等远程访问。 | Local-first Claude Code / AI Agent desktop workspace: multi-agent teams, Git worktrees, diffs, skills marketplace, multi-model, Computer Use, task-aware desktop pets; remote via WeChat, Feishu, DingTalk, Telegram, WhatsApp & H5.

★ 15.2K+21 todayTypeScript

EverMind-AI/Raven

The Harness of Harnesses • built for RSI: a trusted, persistent, self-evolving multi-agent ecosystem for all-domain collaboration.

Arize-ai/phoenix

AI Observability & Evaluation

★ 12.0K+19 todayPython

dyad-sh/dyad

Local, open-source AI app builder for power users ✨ v0 / Lovable / Replit / Bolt alternative 🌟 Star if you like it!

★ 22.1K+18 todayTypeScript

Twigpine/zero

The coding agent that answers to you, your model, your machine, your rules.

★ 1.8K+17 todayGo

FlorianBruniaux/claude-code-ultimate-guide

The most comprehensive Claude Code guide: agentic workflows, hooks, skills, MCP servers, quizzes, and production-ready templates. 430K+ lines.

strands-agents/harness-sdk

Build an agent harness and control it end-to-end. Open-source SDK for production AI agents in Python & TypeScript - any model, any cloud.

yamadashy/repomix

📦 Repomix is a powerful tool that packs your entire repository into a single, AI-friendly file. Perfect for when you need to feed your codebase to Large Language Models (LLMs) or other AI tools like Claude, ChatGPT, DeepSeek, Perplexity, Gemini, Gemma, Llama, Grok, and more.

★ 29.0K+11 todayTypeScript

xbtlin/ai-berkshire

AI 时代的伯克希尔：基于 Claude Code / Codex 的价值投资研究框架。巴菲特·芒格·段永平·李录四大师方法论 + 多Agent并行研究。| AI-era Berkshire: a value investing research framework built for Claude Code / Codex. 4 masters' methodologies + multi-agent adversarial analysis.

cobusgreyling/loop-engineering

Practical patterns, starters & CLI tools for loop engineering with AI coding agents. Design systems that prompt and orchestrate agents (inspired by Addy Osmani and Boris Cherny). Includes loop-audit, loop-init, loop-cost.

★ 11.6K+10 todayTypeScript

langchain-ai/open-swe

An Open-Source Asynchronous Coding Agent

★ 11.1K+8 todayPython

simstudioai/sim

Sim is the collaborative workspace to build, deploy, and monitor AI agents and workflows. Used by 100,000+ builders.

★ 29.9K+8 todayTypeScript

codedogQBY/ReadAny

AI-powered cross-platform e-book reader with semantic search, RAG chat, local vector store, notes, TTS, and WebDAV sync.

★ 2.9K+8 todayTypeScript

TanStack/ai

🤖 Type-safe, provider-agnostic TypeScript AI SDK for streaming chat, tool calling, agents, and multimodal apps across OpenAI, Anthropic, Gemini, React, Vue, Svelte, and Solid.

★ 3.3K+7 todayTypeScript

langchain4j/langchain4j

LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a unified API over popular LLM providers and vector stores, and makes implementing tool calling (including MCP support), agents and RAG easy. It integrates seamlessly with enterprise Java frameworks like Quarkus and Spring Boot.

★ 13.3K+7 todayJava

panxunying/ai-coding-welfare

AI Coding 福利站导航：免费白嫖 Claude Code / Codex 的中转站与公益站合集，含额度、模型、价格自动更新与一键配置脚本

★ 1.2K+6 todayJavaScript

llm claude-code

mohitagw15856/pm-claude-skills

1,310 professional Agent Skills for Claude, Claude Duet, ChatGPT, Gemini, Cursor & Codex: PRDs, postmortems, leases, medical bills, payroll checks, morning briefs. 21 skills built for always-on agents like Claude Duet. Plain markdown, MIT, in Anthropic's plugin directory. Free in-browser or npx pm-claude-skills add.

modu-ai/moai-adk

Agentic development harness for Claude Code — SPEC-driven plan/run/sync, TRUST 5 quality gates, model+effort routing, and Claude×GLM multi-LLM cost control. Single Go binary, 16 languages, zero deps.

★ 1.2K+6 todayGo

llm claude-code

smg-project/smg

Engine-agnostic LLM gateway in Rust. Full OpenAI & Anthropic API compatibility across vLLM, TRT-LLM, TokenSpeed, SGLang, OpenAI, Gemini & more. Industry-first gRPC pipeline, KV cache-aware routing, chat history, tokenization caching, Responses API, embeddings, WASM plugins, MCP, and multi-tenant auth.

★ 687+5 todayRust

jeremylongshore/tons-of-skills-marketplace

Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com.

★ 2.9K+5 todayPython

mozilla-ai/otari

Open-source, OpenAI-compatible LLM gateway you run yourself. One endpoint for 40+ providers, with virtual keys, budgets, and usage tracking.

★ 744+4 todayPython

IvanMurzak/Unity-MCP

AI Skills, MCP Tools, and CLI for Unity Engine. Full AI develop and test loop. Use cli for quick setup. Efficient token usage, advanced tools. Any C# method may be turned into a tool by a single line. Works with Claude Code, Gemini, Copilot, Cursor and any other absolutely for free.

★ 4.5K+4 todayC#

heilcheng/awesome-agent-skills

Tutorials, Guides and Agent Skills Directories

★ 6.3K+4 todayTypeScript

lintsinghua/claude-code-book

《御舆：解码 Agent Harness》42万字拆解 AI Agent 的Harness骨架与神经 —— Claude Code 架构深度剖析，15 章从对话循环到构建你自己的 Agent Harness。在线阅读网站：

★ 4.3K+4 todayPython

ENTERPILOT/GoModel

AI gateway / AI control plane / AI proxy written in Go. Unified OpenAI-compatible and Anthropic-compatible API for OpenAI, Anthropic, Gemini, Groq, xAI, Ollama, vLLM and more. A LiteLLM alternative with observability, guardrails, streaming, cost tracking, intelligent routing, sticky sessions, failover, real-time logs and usage tracking. Prod ready.

★ 1.3K+4 todayGo

OleksandrChekhovskyi/hax

A minimalist, terminal-native coding agent written in C.

★ 942+4 todayC

rynfar/meridian

Use Claude and Antigravity with Pi, OpenCode and other coding clients. Local API bridge, usage dashboard and Mac app. Antigravity preview available in 1.74.0.

jezweb/claude-skills

Skills for Claude Code CLI such as full stack dev Cloudflare, React, Tailwind v4, and AI integrations.

★ 1.1K+4 todayPython

OpenOSINT/OpenOSINT

Open-source engine for passive OSINT checks: 21 tools as CLI, MCP server and web UI. Hosted Monitor & Diligence at app.openosint.tech.

★ 1.8K+3 todayPython

looplj/axonhub

⚡️ Open-source AI Gateway — Use any SDK to call 100+ LLMs. Built-in failover, load balancing, cost control & end-to-end tracing.

★ 5.4K+3 todayGo

affaan-m/agentshield

AI agent security scanner. Detect vulnerabilities in agent configurations, MCP servers, and tool permissions. Available as CLI, GitHub Action, ECC plugin, and GitHub App integration. 🛡️

★ 1.3K+3 todayTypeScript

mcp claude-code

theopenco/llmgateway

Route, manage, and analyze your LLM requests across multiple providers with a unified API interface.

★ 1.7K+3 todayTypeScript