AI Plugin IndexAI frameworks
LangChain MCP servers and skills
There are 76 ways to connect LangChain to Claude, ChatGPT, Cursor and other AI assistants: 28 MCP servers and 48 skills. The most used is MCP Adapters (18k GitHub stars).
Best LangChain MCP servers, compared →Most used
MCP Adapters
langchain-ai
91LangChain.js adapters for Model Context Protocol (MCP)
AAB
Langchain MCP Adapters
langchain-ai
91LangChain.js adapters for Model Context Protocol (MCP)
AAB
code-reviewlangchain-ai
84Perform a structured code review of changes, checking for correctness, style, tests, and potential issues.
AAA
langgraph-typescript-quickstartlangchain-ai
79Scaffold a minimal local LangGraph agent in TypeScript by following the official quickstart. Use when the user wants to quickly build or try a LangGraph agent locally.
AAA
Langgraph
blaxel-ai
73Blaxel SDK for TypeScript
AAD
Langchain MCP Tools
hideya
71MCP To LangChain Tools Conversion Library
BAD
MCP servers (28)
- 1MCP Adapters langchain-ai · Knowledge and memoryLangChain.js adapters for Model Context Protocol (MCP)91
- 2Langchain MCP Adapters langchain-ai · Knowledge and memoryLangChain.js adapters for Model Context Protocol (MCP)91
- 3Langgraph blaxel-ai · Developer toolsBlaxel SDK for TypeScript73
- 4Langchain MCP Tools hideya · AI and LLM toolsMCP To LangChain Tools Conversion Library71
- 5Langchain true402.dev · Marketingtrue402 tools for LangChain — pay-per-call on-chain rug/honeypot & address safety plus backlink/keyword SEO data for Base AI agents over x402 (USDC, no account, no API key).70
- 6X402 Scraper Langchain ihentrel · Browser automationAutonomous x402 web scraper tool for AI agents with automatic Base mainnet USDC micro-settlement67
- 7Idw111 MCP Adapters langchain-ai · Knowledge and memoryLangChain.js adapters for Model Context Protocol (MCP)51
- 8langchain doc2mcp · AI and LLM toolsMCP server for langchain documentation, generated by doc2mcp.50
- 9Crawler KonghaYao · Browser automationA universal web crawler for LLM frameworks, compatible with Tavily API for extract and search, and integrates with Hono.js and Model Context Protocol (MCP).41
- 10langchain-mcp baixianger · Developer toolsLangChain/LangGraph/DeepAgents knowledge + LangGraph agent debugging (Polly-like)39
- ADYour product hereThis row is seen by people browsing LangChain tools. Book it from $249 a month.See prices →
- 11Global Chat — x402 MCP Agent Discovery (LangGraph, CrewAI, Eliza, A2A) pumanitro · Communicationx402-paid MCP server on Base L2 — LangGraph/CrewAI/Eliza/A2A agent-discovery + agent-marketplace.39
- 12Titan Frameworks (LangChain, LlamaIndex, Ollama, XRPL) bebopp187-stack · AI and LLM toolsReview and rewrite LangChain, LlamaIndex, Ollama, and XRPL code against current APIs.27
- 13llm-observability-orchestration-agent-langchain-community getvda · Cloud and DevOpsLLM Observability & Orchestration Agent (LangChain Community)16
- 14Mode VC Chart: LangChain Alternatives: Downloads vs. Newer AI SDKs modevc · Developer toolsLangChain's share of weekly npm framework downloads fell from 32% to 19% in 46 weeks, while.16
- 15encrypted-langchain-session-agent getvda · AI and LLM toolsEncrypted LangChain Session Agent14
- 16encrypted-langchain-token-agent getvda · AI and LLM toolsEncrypted LangChain Token Agent14
- 17google-oauth-langchain-agent getvda · SecurityGoogle OAuth LangChain Agent14
- 18google-sign-in-langchain-agent getvda · AI and LLM toolsGoogle Sign-In LangChain Agent14
- 19langchain-login-and-token-agent getvda · AI and LLM toolsLangChain Login and Token Agent14
- 20llm-observability-orchestration-agent-langchain getvda · Cloud and DevOpsLLM Observability & Orchestration Agent (Langchain)14
- 21llm-orchestration-agent-langchain getvda · AI and LLM toolsLLM Orchestration Agent (Langchain)14
- 22llm-orchestration-agent-langchain-anthropic getvda · AI and LLM toolsLLM Orchestration Agent (Langchain Anthropic)14
- 23llm-orchestration-agent-langchain-core getvda · AI and LLM toolsLLM Orchestration Agent (Langchain Core)14
- 24llm-orchestration-agent-langchain-openai getvda · AI and LLM toolsLLM Orchestration Agent (Langchain Openai)14
- 25llm-orchestration-agent-langgraph getvda · AI and LLM toolsLLM Orchestration Agent (Langgraph)14
- 26oauth-langchain-openai-agent getvda · SecurityOAuth LangChain OpenAI Agent14
- 27structured-output-mcp-agent-langchain-core getvda · AI and LLM toolsStructured Output MCP Agent (Langchain Core)14
- 28traced-openai-langchain-agent getvda · AI and LLM toolsTraced OpenAI LangChain Agent14
Skills (48)
- 1code-review langchain-ai · Developer toolsPerform a structured code review of changes, checking for correctness, style, tests, and potential issues.84
- 2langgraph-typescript-quickstart langchain-ai · Developer toolsScaffold a minimal local LangGraph agent in TypeScript by following the official quickstart. Use when the user wants to quickly build or try a LangGraph agent locally.79
- 3mortgage-fact-extraction langchain-ai · AI and LLM toolsExtract mortgage facts and write /output/03-extracted-facts.json.70
- 4langgraph-subgraph a5c-ai · AI and LLM toolsSubgraph composition and modular workflow design for LangGraph67
- 5langchain-react-agent a5c-ai · AI and LLM toolsLangChain ReAct agent implementation with tool binding for reasoning and action loops67
- 6react-components langchain-ai · Developer toolsModern React component patterns with hooks and TypeScript66
- 7testing-patterns langchain-ai · Developer toolsUnit testing and integration testing best practices66
- 8api-docs langchain-ai · Developer toolsOpenAPI documentation and REST API design patterns64
- 9weekly-newsletter langchain-ai · Search and webProduce the weekly 'This Week in Music' customer newsletter by researching the distributor's top genres in parallel and assembling a styled HTML page. Use when asked to create, write, or send the weekly newsletter or a music-news roundup.59
- 10langgraph-docs Microck · Search and webUse this skill for requests related to LangGraph in order to fetch relevant documentation to provide accurate, up-to-date guidance.57
- 11langgraph-docs Hmbown · Search and webUse this skill for requests related to LangGraph in order to fetch relevant documentation to provide accurate, up-to-date guidance.55
- 12itinerary-format langchain-samples · AI and LLM toolsProduce a day-by-day travel itinerary using our standard structure.40
- 13support-reply langchain-samples · AI and LLM toolsDraft a customer-facing support reply. Use when writing the final answer to a customer ticket - covers structure, tone, and length so every reply lands the same way.37
- 14module-1 langchain-ai · Cloud and DevOpsTeaching instructions for Module 1 (LangGraph Deployment Architecture) — use when module_id is module-137
- 15langchain-agent bidewio · AI and LLM toolsBuild AI agents with LangChain framework36
- 16langchain-retrieval rebyteai-template · DatabasesDocument Q&A with RAG using Supabase pgvector store.33
- 17langchain skeletorflet · AI and LLM toolsLangChain framework for building LLM-powered applications33
- 18langgraph-checkpoint gabrielmoreiraLangGraph checkpoint and persistence configuration for stateful workflow management33
- 19langgraph gabrielmoreira · MarketingExpert in LangGraph - the production-grade framework for building stateful, multi-actor AI applications. Covers graph construction, state management, cycles and branches, persistence with checkpointers, human-in-the-loop patterns, and the ReAct agent pattern. Used in production at LinkedIn, Uber, and 400+ companies. This is LangChain's recommended approach for building agents. Use when: langgraph, langchain agent, stateful agent, agent graph, react agent.33
- 20port-from-langgraph gabrielmoreira · AI and LLM toolsMigrate a LangGraph application to Strands Agents while preserving its external entrypoint, routing, persistence, interrupts, limits, and tracing. Use when the user asks to port, rewrite, compare, or plan a migration from LangGraph to Strands.32
- 21incident-log-analysis langchain-samples · Cloud and DevOpsAnalyze the workshop application log from inside OpenShell and produce incident artifacts.32
- 22langgraph-engineering gabrielmoreira · AI and LLM toolsBuilding stateful, resilient AI agents with LangGraph v1.0.30
- 23implement-rag-with-langchain-stack achaykovsky · Knowledge and memoryOptional LangChain/LangGraph/LangSmith implementation of RAG when the project already uses that stack. Use only when user names LangChain, LangGraph, or LangSmith; otherwise use neutral rag-workflows skills.30
- 24langchain-short-memory dotlab-hq · CommunicationImplement and tune short-term memory for LangChain/LangGraph chat agents, including thread-level persistence, trimming, deletion, and summarization patterns when conversation history grows.29
- 25evidence-review langchain-samples · AI and LLM toolsReview evidence gathered during vendor due diligence — validate sources, assess quality, and flag gaps.27
- 26langchain-langgraph arvnfly · AI and LLM toolsLangChain and LangGraph agent graphs, cyclic state machines, checkpointing, and tool execution nodes.26
- 27langgraph-workflow ada-zl5825 · Developer toolsUse when implementing or changing the Recruitment Inbox LangGraph, graph state, nodes, routing, checkpoints, interrupts, human review, resume behavior, workflow retries, or graph tests.26
- 28langgraph morphobankorg · Developer toolsProvides specialized context, rules, and tools for implementing, configuring, and debugging langgraph. Use this skill whenever modifying langgraph configurations or adding related functionality.24
- 29langchain morphobankorg · Developer toolsProvides specialized context, rules, and tools for implementing, configuring, and debugg in langchain. Use this skill whenever modifying docs configurations or adding related functionality.24
- 30langgraph JengFeng · AI and LLM tools複雜狀態多 Agent 協作工作流的圖形狀態管理引擎。24
- 31cursor-langchain-deep-agents-ager SpillwaveSolutions · AI and LLM toolsBind a Cursor agent to langchain-deep-agents-ager. Compile AGER graphs. Do not author graphs.24
- 32langgraph-workflow-node-mappings UitbreidenOSGuidelines and instructions for LangGraph workflow node mappings24
- 33langgraph-docs ppenumatsa1 · DatabasesFetch and reference LangGraph Python documentation for underwriting graph composition, native PostgreSQL checkpointers, streaming, and resume patterns.24
- 34langchain-text-vector-store-integrations UitbreidenOS · DatabasesGuidelines and instructions for LangChain text vector store integrations24
- 35langchain-docs Nap20192 · Search and webUse official LangChain/LangGraph/LangSmith docs instead of memory. Trigger on any question or coding task involving langchain, langgraph, langsmith, create_agent, StateGraph, checkpointer, LCEL, init_chat_model, or when APIs may have changed in langchain 1.x. Fetch the docs index, then the exact page as markdown.24
- 36langgraph-node nhandoanngoc-agilityio · Developer toolsUse when adding or changing a graph node, sub-agent, or supervisor route in this LangGraph project. Covers state fields, error-boundary registration, routing, and the hermetic test pattern.24
- 37langgraph Vivekanand-s-naik · AI and LLM toolsBuild stateful agent workflows with LangGraph covering graphs, nodes, edges, state, checkpointing, and human-in-the-loop. Use when the user asks to design or modify LangGraph agents or workflows.23
- 38status-update langchain-samples · AI and LLM toolsWrite a short account-facing status update on an order. Use this skill when asked for a status update, a customer or account update, or a brief on where an order stands.23
- 39langchain-python-quickstart h19overflow · Developer toolsScaffold a minimal local LangChain agent in Python by following the official quickstart. Use when the user wants to quickly build or try a LangChain agent locally.23
- 40langchain nelsondell · AI and LLM toolsLangChain agents, @tool decorator, ReAct pattern, LangGraph state machines. Auto-activates when building agents, defining tools, or implementing multi-step reasoning pipelines.22
- 41ledgeragent-langgraph-debugger PushkarKanjani · Developer toolsSpecialist in debugging LedgerAgent's LangGraph workflows, trace analysis, and checkpoint state inspection.22
- 42LangChain Advanced cgyudistira · AI and LLM toolsAdvanced LangChain patterns: chains, agents, callbacks, and custom components.20
- 43langchain nelsondell · AI and LLM toolsLangChain agents, @tool decorator, ReAct pattern, LangGraph state machines. Auto-activates when building agents, defining tools, or implementing multi-step reasoning pipelines.19
- 44langgraph-agents Zireaelst · AI and LLM toolsPlaybook for multi-agent orchestration with LangGraph — StateGraph, supervisor pattern, tool calling, human-in-the-loop, and persistence. Use for agent workflows, negotiation, and orchestration logic.19
- 45langgraph-builder David-Li0406Use when creating a new LangGraph graph. Start with a minimal graph and iterate.18
- 46langgraph-docs Daniel-Gordon-sympera · Search and webUse this skill for requests related to LangGraph in order to fetch relevant documentation to provide accurate, up-to-date guidance.18
- 47fastapi-to-langgraph yuxiu1212將「意圖分類 + if/elif 分派情境處理」的 FastAPI 應用程式，一步轉換為 LangGraph（StateGraph）架構。當使用者要求把 FastAPI 專案改成 LangGraph、加情境節點、用 graph 架構重構時，主動使用本技能。18
- 48langchain-agent itsimonfredlingjack · AI and LLM toolsCreate LangGraph-based agent with modern patterns17
Questions
Is there an official LangChain MCP server?
Check the publisher on each listing: servers published by LangChain itself are the official ones. The most used LangChain server here is MCP Adapters by langchain-ai.
How do I connect LangChain to Claude?
Pick a server below, open its page and copy the install command for Claude Code, or the config block for Claude Desktop. Most LangChain servers need an API key or token from your LangChain account.