"LangGraph" matching MCP servers:

Provides a standardized interface to interact with LangGraph agents through ChatGPT Enterprise, enabling conversational AI workflows with tools for agent invocation, streaming responses, and thread management.

A multi-agent Retrieval-Augmented Generation system exposed as an MCP server. Ask a question and a LangGraph pipeline plans the retrieval, pulls evidence from a pgvector knowledge base, optionally augments it with live web research, drafts a cited answer, and then self-critiques it for grounding — revising until the answer is supported by the sources.

MCP server that lets coding agents test AI agents. Create YAML test cases, snapshot golden baselines, check for regressions, and generate visual reports all from inside Claude Code or any MCP-compatible tool. Works with LangGraph, CrewAI, OpenAI, Claude, Mistral, and any HTTP API.

An MCP server that acts as a proxy to connect MCP clients to agent frameworks like Mastra and LangGraph, enabling agent discovery, dynamic server connections, and recursive agent networks.

An MCP server with LangGraph agent integration that enables AI agents to use custom tools and external APIs for dice rolling, web search, social content creation, and GitHub access via STDIO transport.

Universal verifiable recovery for long-running AI agents with semantic checkpoints, idempotent action ledger and hash chained log as a deny by default MCP server. Framework agnostic with adapters for LangGraph, LangChain and OpenAI plus gateway and OTel.

FastMCP server for Vietnamese stock analysis, providing 35+ tools for fetching quotes, financials, and technical indicators (144+), and generating AI-driven investment reports. Integrates with Claude/Cursor via stdio/SSE and supports LangGraph workflows.

A defensive MCP server for Claude Desktop / any MCP client — the blue-team counterpart to offensive tooling. 123 tools + 4 resources across Wazuh SIEM, multi-provider threat intelligence, MITRE-driven 3-Sum APT correlation, attack graphing, LangGraph investigation workflows, and host forensics. Read-only by default.

An MCP server for automated interaction with Gemini's web interface using Playwright and LangGraph, enabling task execution, deep research, file uploads, chat management, and dynamic selector verification via MCP tools.

An AI-powered server that analyzes system log files to identify errors/warnings and recommend fixes using FastMCP, LangGraph ReAct agents, and Anthropic Claude.

AI-powered document generation suite that creates comprehensive software documentation including requirements, design specs, test strategies, and deployment guides through LangGraph workflows. Integrates with Cursor IDE via MCP to transform project ideas into professional documentation suites.

Provides semantic search across the entire LangChain ecosystem, including documentation and source code for LangChain, LangGraph, LangSmith, and DeepAgents.

A zero-cost, multi-server MCP suite that provides a unified gateway and LangGraph-based automated PR-review agent, enabling code analysis, GitHub operations, and documentation generation via free-tier APIs.

Provides math and weather tools accessible via LangGraph agent using MCP protocol with stdio and streamable HTTP transports.

A Model Context Protocol server that provides financial tools for retrieving real-time stock data, analyst recommendations, financial statements, and web search capabilities for a LangGraph-powered ReAct agent.

A FastMCP server providing tools to manage and query a product database stored in a JSON format. It enables users to perform operations such as filtering products by category and retrieving product data through a LangGraph agent interface.

Enables validation of FIX messages against onboarding rules and automates onboarding workflows through MCP tools, using a LangGraph agent with LLM-based parsing and error explanation.

MCP server exposing tools for a small food business: catalog, booking capacity, stock, catering quotes, and orders. Enables natural-language interaction with these operations via any MCP client, including a LangGraph agent.

A calculator MCP server providing add and subtract tools, along with file resources and a code review prompt, supporting in-memory, HTTP, and STDIO transports. It also includes a LangGraph ReAct agent example that uses the tools.

An MCP server that orchestrates parallel searches for flights, hotels, and activities to generate travel itineraries. It features persistent state management via LangGraph and SQLite while ensuring the total cost remains within a specified budget.