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Claude Code LangChain plugins and skills

Flowy lists 60 plugins for LangChain work in Claude Code. Each one bundles skills a Claude Code agent can load while you work. Every listing shows what is inside before you install, who built it, and whether it is Auto-invoked, meaning a FLOW.md router fires the right skill as you prompt instead of leaving them dormant.

n8n
Plugin

n8n

Fair-code platform to build and deploy AI agents and workflows. Combine a visual canvas with custom code, run it self-hosted or in the cloud, and connect to 1500+ integrations. AI automation you can trust with real work, from prototype to production.

18 skills
@n8n-io@n8n-ioView Plugin
deer-flow
Plugin

deer-flow

On February 28th, 2026, DeerFlow claimed the 🏆 #1 spot on GitHub Trending following the launch of version 2. Thanks a million to our incredible community — you made this happen!

29 skills
@bytedance@bytedanceView Plugin
openviking
Auto-invokedPlugin

openviking

Self-evolving Context Database for AI Agents. Unify Agent Memory, Knowledge RAG and Skills.

12 skills
@volcengine@volcengineView Plugin
copilotkit
Plugin

copilotkit

Docs · Examples · CopilotKit Intelligence · Build agent-native applications — on any framework, on any surface. Generative UI, shared state, and human-in-the-loop workflows for React, Angular, Vue, React Native, and in Slack and Microsoft Teams.

9 skills
@copilotkit@copilotkitView Plugin
deepagents
Plugin

deepagents

The batteries-included agent harness.

1 skill
@langchain-ai@langchain-aiView Plugin
gpt-researcher
Plugin

gpt-researcher

GPT Researcher the first open deep research agent designed for both web and local research on any given task. The agent produces detailed, factual, and unbiased research reports with citations.

1 skill
@assafelovic@assafelovicView Plugin
deepeval
Plugin

deepeval

📐 Large variety of ready-to-use LLM eval metrics (all with explanations) powered by ANY LLM of your choice, statistical methods, or NLP models that run locally on your machine covering all use cases: Custom, All-Purpose Metrics: JevEval — a custom metric

3 skills
@confident-ai@confident-aiView Plugin
memori
Plugin

memori

Memori is agent-native memory infrastructure. A LLM-agnostic layer that turns agent execution and conversation into structured, persistent state for production systems. Built for enterprise, Memori works with the data infrastructure you already run, no rip-and-replace, and deploys across managed cloud, single-tenant cloud, VPC, and on-premises.

2 skills
@memorilabs@memorilabsView Plugin
skill-seekers
Plugin

skill-seekers

🧠 The data layer for AI systems. Skill Seekers turns documentation sites, GitHub repos, PDFs, videos, notebooks, wikis, and more — 18 source types — into structured knowledge assets, ready to power AI Skills (Claude, Gemini, OpenAI), RAG pipelines

2 skills
@yusufkaraaslan@yusufkaraaslanView Plugin
phoenix
Plugin

phoenix

AI Observability & Evaluation

6 skills
@arize-ai@arize-aiView Plugin
revfactory-harness
Plugin

revfactory-harness

Harness is a team-architecture factory for Claude Code. Say "build a harness for this project" (English) or "하네스 구성해줘" (한국어) or "ハーネスを構成して" (日本語), and the plugin turns your domain description into an agent team and the skills they use — picked from six

1 skill
@revfactory@revfactoryView Plugin
n8n-mcp-skills
Auto-invokedPlugin

n8n-mcp-skills

Expert Claude Code skills for building flawless n8n workflows using the n8n-mcp MCP server

15 skills
@czlonkowski@czlonkowskiView Plugin
langroid
Plugin

langroid

This is just a teaser; there's much more, like function-calling/tools, Multi-Agent Collaboration, Structured Information Extraction, DocChatAgent (RAG), SQLChatAgent, non-OpenAI local/remote LLMs, etc. Scroll down or see docs for more.

2 skills
@langroid@langroidView Plugin
rapid-mlx
Plugin

rapid-mlx

The fastest local AI engine for Apple Silicon. 4.2x faster than Ollama, 0.08s cached TTFT, 100% tool calling. 17 tool parsers, prompt cache, reasoning separation, cloud routing. Drop-in OpenAI replacement. Works with Claude Code, Cursor, Aider.

1 skill
@raullenchai@raullenchaiView Plugin
firered-openstoryline
Plugin

firered-openstoryline

FireRed-OpenStoryline is an AI video editing agent that transforms manual editing into intention-driven directing through natural language interaction, LLM-powered planning, and precise tool orchestration. It facilitates transparent, human-in-the-loop creation with reusable Style Skills for consistent, professional storytelling.

2 skills
@fireredteam@fireredteamView Plugin
linkedin-skills
Auto-invokedPlugin

linkedin-skills

Claude skills for LinkedIn. 12 Claude Code and Codex skills that write LinkedIn posts, comments, and replies in your voice. They draft content, strip AI tells, and wait for your approval before anything gets published. No coding required.

12 skills
@sergebulaev@sergebulaevView Plugin
apify-agent-skills
Plugin

apify-agent-skills

Collection of Apify agent skills

5 skills
@apify@apifyView Plugin
edgeone-makers-tools
Auto-invokedPlugin

edgeone-makers-tools

Official AI Agent Skills for developing and deploying projects on EdgeOne Makers.

11 skills
@tencentedgeone@tencentedgeoneView Plugin
babysitter
Plugin

babysitter

Enforce obedience on agentic workforces. Manage extremely complex workflows through deterministic, hallucination-free self-orchestration.

200 skills
@a5c-ai@a5c-aiView Plugin
langchain-skills
Auto-invokedPlugin

langchain-skills

⚠️ — This project is in early development. APIs and skill content may change. Agent skills for building agents with LangChain, LangGraph, and Deep Agents. For LangSmith-specific trace and dataset workflows, use langsmith-skills.

22 skills
@langchain-ai@langchain-aiView Plugin
binance-skills-hub
Plugin

binance-skills-hub

Binance Skills Hub is an open skills marketplace that gives AI agents native access to crypto: both centralized and decentralized. Search tokens, execute trades, track wallets, monitor signals, and interact with DeFi protocols, all through natural language.

20 skills
@binance@binanceView Plugin
arcade-mcp
Plugin

arcade-mcp

Open-source Python framework for building MCP servers and tools.

1 skill
@arcadeai@arcadeaiView Plugin
pentest-agents
Plugin

pentest-agents

Bug bounty agent framework for Claude Code, Codex, Gemini, Cursor, Windsurf, Copilot, and OpenClaw — 48 agents, 26 commands, 19 CLI tools, 2 MCP servers, autonomous hunt loops, exploit chain builder.

39 skills
@h-mmer@h-mmerView Plugin
best-of-agent-harnesses
Plugin

best-of-agent-harnesse…

🏆 Curated, ranked list of AI agent harnesses (100+) — plus an MCP server, llms.txt & JSON so agents can recommend them too. Rescored weekly.

@ryanalberts@ryanalbertsView Plugin
openjudge
Plugin

openjudge

OpenJudge: A Unified Framework for Holistic Evaluation and Quality Rewards

21 skills
@agentscope-ai@agentscope-aiView Plugin
duel-agents
Plugin

duel-agents

Use, extend, and ship with Duel Agents: the IDE-native routing layer that runs prompts against multiple models and picks the cheapest answer that still wins. This repo is the official integration package for duelagents.com.

1 skill
@2arons@2aronsView Plugin
skillgrade
Plugin

skillgrade

The easiest way to evaluate your Agent Skills. Tests that AI agents correctly discover and use your skills. See examples/ — superlint (simple) and angular-modern (TypeScript grader).

2 skills
@mgechev@mgechevView Plugin
lhtb
Plugin

lhtb

Long-Horizon Terminal-Bench is a 46-task benchmark for measuring how well LLM agents sustain useful work in a containerized terminal over hundreds of steps.

5 skills
@zli12321@zli12321View Plugin
swarmclaw
Plugin

swarmclaw

The self-hosted AI agent runtime and multi-agent framework for autonomous agents. Open-source agent swarms with durable agent memory, MCP tools, skills, delegation, schedules, and 23+ LLM providers — a practical Claude Code and LangChain alternative.

11 skills
@swarmclawai@swarmclawaiView Plugin
dive-into-langgraph
Plugin

dive-into-langgraph

LangGraph 1.0 Tutorial

1 skill
@luochang212@luochang212View Plugin
skillalchemy
Plugin

skillalchemy

Turn people, methods, and experience into installable, reusable agent skills. SkillAlchemy is an open-world agent skill creation system that turns underspecified skill briefs and open-world sources into installable, reusable agent skills.

47 skills
@agentsope@agentsopeView Plugin
prismor
Plugin

prismor

Self-hosted runtime control plane for AI agents. Observe or HITL approve or Block rogue tool calls before it executes: secret leaks, prompt injection, supply chain etc in a local dashboard. Agent agnostic (Claude, codex, langchain etc.)

1 skill
@prismorsec@prismorsecView Plugin
skills-agent-proto
Plugin

skills-agent-proto

使用 LangChain 1.0 构建的 Skills Agent,演示 Skills 三层加载机制的底层原理。默认使用 Anthropic,也支持 OpenAI / OpenAI-compatible 接口。 B站视频: Skills到底怎么实现?我写了个Agent跑给你看

1 skill
@nanmicoder@nanmicoderView Plugin
bitget-wallet-skill
Plugin

bitget-wallet-skill

AI agent skill for Bitget Wallet — token swap, cross-chain bridge, and gasless transactions via Order Mode API. Supports 7 EVM chains + Solana.

1 skill
@bitget-wallet-ai-lab@bitget-wallet-ai-labView Plugin
ai-daily
Plugin

ai-daily

AI 资讯日报 Claude Code Skill - 每天自动获取、分析、归类 AI 前沿资讯 $\color{#FF0000}{想每天咖啡时间就帮你找到好的选题,自动发给你吗? 有需要定制的朋友拉到底部通过公众号联系到我。}$

1 skill
@geekjourneyx@geekjourneyxView Plugin
superlocalmemory
Plugin

superlocalmemory

Open-source governed, local-first memory control plane for AI agents and teams. arXiv:2608.08253

12 skills
@qualixar@qualixarView Plugin
team-telnyx-ai
Plugin

team-telnyx-ai

This repo is the one-stop shop for AI Agents and AI-first developers building with Telnyx — everything an agent needs to build production-grade applications and manage its account, from signup to funding.

200 skills
@team-telnyx@team-telnyxView Plugin
idun-agent-platform
Plugin

idun-agent-platform

🟪 Open-source runtime that ships any LangGraph or Google ADK agent as a production-ready FastAPI service. Bundled, AG-UI copilotkit API, chat UI, 15+ guardrails, MCP, OpenTelemetry, OIDC. One pip install. Self-hosted, no vendor lock-in.

@idun-group@idun-groupView Plugin
superml
Auto-invokedPlugin

superml

Give your AI coding agent ML engineering superpowers. Watch how SuperML works in 90 seconds: If SuperML helps you, give it a ⭐ it helps others find the project.

7 skills
@leeroo-ai@leeroo-aiView Plugin
prompt-guard
Plugin

prompt-guard

Advanced prompt injection defense system for AI agents. Multi-language detection, severity scoring, and security auditing.

1 skill
@seojoonkim@seojoonkimView Plugin
instagram-skills
Plugin

instagram-skills

Part of the linkedin-skills family (400+ stars). Same voice engine and approve-before-publish flow, now for Instagram. Also available for X · YouTube · TikTok · Threads · Facebook. 9 skills that turn Claude Code and Codex into your Instagram content team.

9 skills
@sergebulaev@sergebulaevView Plugin
recall-loom
Plugin

recall-loom

Project memory for long-running AI work across agents, models, and sessions. Keep context, decisions, progress, and next steps in local project files.

1 skill
@frappucc1no@frappucc1noView Plugin
sendaifun-skills
Plugin

sendaifun-skills

AI agent skills for Solana development — DeFi protocols, infrastructure, security, and more.

48 skills
@sendaifun@sendaifunView Plugin
x-skills
Auto-invokedPlugin

x-skills

Part of the linkedin-skills family (400+ stars). Same voice engine and approve-before-publish flow, now for X. Also available for Instagram · YouTube · TikTok · Threads · Facebook. 9 skills that turn Claude Code and Codex into your X (Twitter) content team.

9 skills
@sergebulaev@sergebulaevView Plugin
agent-lint
Plugin

agent-lint

The linter for your agent harness. Works with Claude Code, Codex, and Cursor.

@0xmariowu@0xmariowuView Plugin
dcode-agent-kit
Plugin

dcode-agent-kit

A Claude Code skill that scaffolds ready-to-run LangChain Deep Agents and dcode CLI agents into any project.

1 skill
@eliaalberti@eliaalbertiView Plugin
tiktok-skills
Plugin

tiktok-skills

Part of the linkedin-skills family (400+ stars). Same voice engine and approve-before-publish flow, now for TikTok. Also available for Instagram · X · YouTube · Threads · Facebook. 8 skills that turn Claude Code and Codex into your TikTok content team.

8 skills
@sergebulaev@sergebulaevView Plugin
harness-evolver
Plugin

harness-evolver

Point at any LLM agent codebase. Harness Evolver will autonomously improve it — prompts, routing, tools, architecture — using multi-agent evolution with LangSmith as the evaluation backend.

9 skills
@raphaelchristi@raphaelchristiView Plugin

FAQ

What are the best Claude Code LangChain plugins?
Flowy lists 60 plugins for LangChain, ranked by fit and signal rather than raw install count. Open any listing to read every skill in full before you install it.
Do these LangChain skills run automatically?
The Auto-invoked ones do. They ship a FLOW.md router and a hook, so Claude Code loads the matching skill as you prompt. Indexed listings install normally and you invoke them yourself.
How does Flowy decide a plugin is a LangChain plugin?
The tag is derived from the plugin's own content, its skill names, descriptions, README and file types, not from a tag someone typed. A plugin appears here only when its real content matches.
Are these LangChain plugins free?
Yes. Flowy is free and open source with nothing gated. You can read every skill before installing, and each listing links to its upstream repository and its creator.

Browse every plugin