Best LLM Plugin

2588+ open-source llm plugin tools ranked by stars

What are LLM Plugin tools?

LLM Plugin tools are open-source packages that extend AI coding agents like Claude Code, OpenAI Codex, Gemini CLI, and other AI assistants. They provide specialized capabilities ranging from code generation and debugging to API integration and workflow automation.

Agent Skills Hub indexes 2588+ llm plugin tools from GitHub, ranked by community adoption (stars), code quality scores, and compatibility with popular AI agents. The top languages in this category are TypeScript, Python, Rust, Swift, Jupyter Notebook.

Also browse: MCP Server Claude Skill AI Tool Codex Skill Agent Tool AI Skill YouMind Plugin Education

#	Skill	Stars	Lang
1	promptfoo Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare p	★ 24.4k	TypeScript
2	stagehand The SDK For Browser Agents	★ 24.0k	TypeScript
3	gorilla Gorilla: Training and Evaluating LLMs for Function Calls (Tool Calls)	★ 13.0k	Python
4	PocketFlow-Tutorial-Codebase-Knowledge Pocket Flow: Codebase to Tutorial	★ 12.6k	Python
5	llm Access large language models from the command-line	★ 12.4k	Python
6	phoenix AI Observability & Evaluation	★ 11.1k	Python
7	llm-engineer-toolkit A curated list of 120+ LLM libraries category wise.	★ 10.8k
8	code2prompt A CLI tool to convert your codebase into a single LLM prompt with source tree, prompt templating, an	★ 7.5k	Rust
9	superagent Superagent protects your AI applications against prompt injections, data leaks, and harmful outputs.	★ 6.7k	TypeScript
10	ai-cookbook Examples and tutorials to help developers build AI systems	★ 4.4k	Python
11	DecryptPrompt 总结Prompt&LLM论文，开源数据&模型，AIGC应用	★ 3.4k
12	ax The pretty much "official" DSPy framework for Typescript	★ 2.9k	TypeScript
13	awesome-local-llm A curated list of awesome platforms, tools, practices and resources that helps run LLMs locally	★ 2.5k
14	yek A fast Rust based tool to serialize text-based files in a repository or directory for LLM consumptio	★ 2.5k	Rust
15	WritingTools The world's smartest system-wide grammar assistant; a better version of the Apple Intelligence Writi	★ 2.4k	Swift
16	code-interpreter Python & JS/TS SDK for running AI-generated code/code interpreting in your AI app	★ 2.4k	Python
17	any-llm Communicate with an LLM provider using a single interface	★ 2.2k	Python
18	repo2txt Web-based tool converts GitHub repository contents into a single formatted text file	★ 1.8k	TypeScript
19	tau2-bench τ-Bench: A Benchmark for Tool-Agent-User Interaction in Real-World Domains	★ 1.8k	Python
20	BruteForceAI Advanced LLM-powered brute-force tool combining AI intelligence with automated login attacks	★ 1.6k	Python
21	ExtractThinker ExtractThinker is a Document Intelligence library for LLMs, offering ORM-style interaction for flexi	★ 1.6k	Python
22	awesome-llm-agents A curated list of awesome LLM agents frameworks.	★ 1.6k	Python
23	mirascope The LLM Anti-Framework	★ 1.5k	Python
24	desktop E2B Desktop Sandbox for LLMs. E2B Sandbox with desktop graphical environment that you can connect to	★ 1.5k	Python
25	langtrace Langtrace 🔍 is an open-source, Open Telemetry based end-to-end observability tool for LLM applicat	★ 1.2k	TypeScript
26	LLM-ToolMaker	★ 1.1k	Jupyter Notebook
27	NyaProxy NyaProxy acts like a smart, central manager for accessing various online services (APIs) – think AI	★ 976	Python
28	ontogpt LLM-based ontological extraction tools, including SPIRES	★ 965	Jupyter Notebook
29	code2prompt Code2Prompt is a powerful command-line tool that simplifies the process of providing context to Larg	★ 882	Python
30	kani kani (カニ) is a highly hackable microframework for tool-calling language models. (NLP-OSS @ EMNLP 202	★ 605	Python
31	tessera From teacher to tiles — a from-scratch LLM distillation & serving engine: custom Triton/CUDA kernels	★ 579	Python
32	echo The User Pays AI SDK	★ 542	TypeScript
33	vllm-cli A command-line interface tool for serving LLM using vLLM.	★ 507	Python
34	LLM-Tool-Survey This is the repository for the Tool Learning survey.	★ 486
35	ToolNeuron On-device AI for Android — LLM chat (GGUF/llama.cpp), vision models (VLM), image generation (Stable	★ 461	Kotlin
36	OpenRCA [ICLR'25] OpenRCA: Can Large Language Models Locate the Root Cause of Software Failures?	★ 401	Python
37	otari Open-source, OpenAI-compatible LLM gateway you run yourself. One endpoint for 40+ providers, with vi	★ 393	Python
38	chatgpt-subtitle-translator Efficient translation tool based on ChatGPT or any OpenAI compatible LLM chat completion API	★ 389	JavaScript
39	toolkit.dev Get paid to build LLM tools	★ 357	TypeScript
40	claude-code-trace Claude Code session log viewer for JSONL files in ~/.claude/projects. Browse conversations, tool cal	★ 334	Rust
41	llms-tools A list of LLMs Tools & Projects	★ 323
42	leanctx Drop-in prompt compression for production LLM apps. Cut your token bill 40-60% without changing your	★ 316	Python
43	openai-function-calling-tools 🛠 openai function calling tools for JS/TS	★ 310	TypeScript
44	input0 Input0 — A macOS voice input tool: hold a hotkey to record, release to transcribe locally via STT, r	★ 293	Rust
45	bocoel Bayesian Optimization as a Coverage Tool for Evaluating LLMs. Accurate evaluation (benchmarking) tha	★ 290	Python
46	apicat An efficient API documentation management tool that fully adheres to the OpenAPI specification and i	★ 288	Go
47	SecGPT A Test Project for a Network Security-oriented LLM Tool Emulating AutoGPT	★ 286	Python
48	codinit-dev Local-First Open Source web & mobile AI app builder — install on MacOS, Windows & Linux	★ 257	TypeScript
49	gpt_server gpt_server是一个用于生产级部署LLMs、Embedding、Reranker、ASR、TTS、文生图、图片编辑和文生视频的开源框架。	★ 254	Python
50	neuroarxiv A skill to kill from-scratch coding — Claude checks real arXiv prior art before it designs a new arc	★ 248	TypeScript
51	marginalia A library-science-inspired personal knowledge management system with LLM agents	★ 231	Python
52	llm-rl-environments-lil-course 🌱 A little course on Reinforcement Learning Environments for evaluating and training Language Model	★ 218	Python
53	cognidb CogniDB is a Python-powered Natural Language to SQL interface that enables users to query databases	★ 216	Python
54	J-Wash Jacobian-Brainwash : A manual alignment tool for large language models built on Anthropic's Jacobian	★ 216	Python
55	frugon Free, local, open-source LLM cost analyzer - see where your LLM bill leaks, on your machine.	★ 209	Python
56	cai User friendly CLI tool for AI tasks. Stop thinking about LLMs and prompts, start getting results!	★ 202	Rust
57	Eridanus 基于 OneBot 协议的多功能bot兼开发框架。以llm function calling为核心构建了更智能的功能调用机制。支持不接入QQ纯Live2d桌宠模式	★ 200	Python
58	Awesome-Multi-Token-Prediction A curated list of papers, tools, and resources on Multi-Token Prediction (MTP) and related technique	★ 191
59	aitools_client Seth's AI Tools: A Unity based front end that uses ComfyUI and LLMs to create stories, images, movie	★ 186	C#
60	llm_intents Exposes internet search tools for use by LLM-backed Assist in Home Assistant	★ 184	Python
61	LLM-Tools Open-source calculator for LLM system requirements.	★ 182	Python
62	chatlab ⚡️🧪 Fast LLM Tool Calling Experimentation, big and smol	★ 163	Jupyter Notebook
63	garycli AI-native embedded engineering agent — from natural-language requirements to code, build, flash, run	★ 155	Python
64	bpmn-assistant LLM-powered assistant for creating, editing, and interpreting business process diagrams	★ 149	Python
65	lm-proxy OpenAI-compatible HTTP LLM proxy / gateway for multi-provider inference (Google, Anthropic, OpenAI,	★ 148	Python
66	OSA Tool that just makes your open source project better using LLM agents	★ 144	Python
67	MLLM-Tool MLLM-Tool: A Multimodal Large Language Model For Tool Agent Learning	★ 143	Python
68	tokuin CLI tool – estimates LLM tokens/costs and runs provider-aware load tests for OpenAI, Anthropic, Open	★ 142	Rust
69	inferock-bench Local LLM cost-tracking proxy for OpenAI, Anthropic, Gemini, and pinned OpenRouter calls with token	★ 139	TypeScript
70	OpenWebui-Tools Custom tools to enhance your Open-Webui Experience! 🚀	★ 135	Python
71	multi-model-chat Multi-Model Chat — Compare responses from multiple AI models side by side in real-time. Supports GPT	★ 134	TypeScript
72	open-creator An open-source LLM tool for extracting repeatable tasks from your conversations, and saving them int	★ 132	Python
73	aulite EU AI Act compliance proxy for AI systems. Drop-in HTTP proxy that monitors every AI interaction for	★ 130	TypeScript
74	banks LLM prompt language based on Jinja. Banks provides tools and functions to build prompts text and cha	★ 128	Python
75	TokenTamer A drop-in proxy that compresses bloated code context in real-time, cutting LLM API costs by 50–80% w	★ 127	Python
76	reality-engine Top Dynamic AI World Simulation & Storytelling Tools 2026	★ 122	HTML
77	LLM_trader LLM-powered Crypto Trading Framework with Vision AI chart analysis, real-time Neural Engine, and a l	★ 118	Python
78	cursive ✦ The intuitive LLM framework	★ 118	TypeScript
79	reverse-engineering-is-over LLMs have ended reverse engineering as a high-barrier skill. Case study: reconstructing 6/7 custom H	★ 116	Python
80	AgentGuard AgentGuard：An Attribute-Based Access Control Framework for Tool-Use LLM-Based Agent	★ 115	Python
81	dexter LLM tools used in production at Dexa	★ 109	TypeScript
82	comfyui-llm-toolkit	★ 107	Python
83	Eval High-performance LLM evaluation framework with parallel API calls — up to 17× faster than sequential	★ 107	Python
84	llm-tools-nmap	★ 101	Python
85	awesome-pydantic-ai An opinionated list of awesome Pydantic-AI frameworks, libraries, software and resources.	★ 99
86	ue-llm-toolkit A set of tools allowing LLMs to see inside Unreal Engine 5 projects.	★ 98	C++
87	pith Pith is the hook that makes Claude Code sessions last 3x longer.	★ 97	Python
88	llm-manpage-tool Inject relevant documentation into your prompts: 98% savings.	★ 97	Python
89	llm-tool-collection Curated collection of tools for agentic LLMs in Emacs	★ 96	Emacs Lisp
90	llm-tools-kiwix Turn any Kiwix ZIM archive (offline Wikipedia, Stack Exchange, DevDocs, etc.) into an instant knowle	★ 91	Python
91	llm_context_benchmarks 📊 LLM Context Benchmarks - A comprehensive benchmarking tool for testing LLMs with varying context	★ 80	Python
92	LLM-Research A collection of LLM related papers, thesis, tools, datasets, courses, benchmarks	★ 67	Python
93	pls CLI tool that turns natural language into shell commands via LLM	★ 66	Zig
94	bedrock-kb-rag-workshop Bedrock Knowledge Base and Agents for Retrieval Augmented Generation (RAG)	★ 65	HTML
95	control-layer A production-grade control layer that sits between your application logic and any LLM — input valida	★ 62	Python
96	outputguard Validate, repair, and retry LLM structured outputs. 13 repair strategies for common JSON malformatio	★ 60	Python
97	awesome-ai-api-proxy One key. Every model. Anywhere. — A curated map of AI API relay stations & LLM gateways.	★ 60	Python
98	openwebui-generate-documents Native Word (.docx) generator tool for Open WebUI — Markdown/JSON in, cover pages, styled tables, ca	★ 60	Python
99	chathub One chat interface across OpenAI, Anthropic and Gemini — with tools, web browsing and shared threads	★ 59	TypeScript
100	better-sidebar-for-google-gemini-and-ai-studio Enhance your Google AI Studio experience with a better sidebar, folders, tags, prompt manager, and f	★ 55	TypeScript

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