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Open-Source MCP servers

Production-ready MCP servers that extend AI capabilities through file access, database connections, API integrations, and other contextual services.

11,771 servers. Last updated -

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    MCP ChatGPT Responses connects Claude to ChatGPT through two essential tools: standard queries for AI-to-AI conversations and web-enabled requests for current information. It uses OpenAI's Responses API to maintain conversation state automatically.
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    A Model Context Protocol server that allows AI assistants to communicate with the ChatGPT desktop app on macOS, enabling users to send prompts to ChatGPT from any MCP-compatible assistant.
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    Enables Claude Desktop and VS Code Claude CLI to interact with ChatGPT on Windows systems through the MCP protocol. Provides seamless integration allowing users to leverage ChatGPT functionality within their Claude workflow with tools for sending messages, managing conversations, and accessing ChatGPT responses.
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    A complete ChatGPT App implementation using MCP with OAuth2 authentication via Privy.io, enabling secure user authentication and interactive widgets rendered in ChatGPT.
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    Enables interactive React components to render inline in ChatGPT conversations, featuring a calculator widget with history and demonstrating how to build custom UI components for ChatGPT Apps.
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    A minimal MCP server demonstrating how to build ChatGPT-compatible applications using Next.js with widget rendering capabilities. Provides a starter template for integrating Next.js applications with the ChatGPT Apps SDK through the Model Context Protocol.
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    An MCP server that provides deep knowledge about OpenAI APIs and SDKs, enabling users to query technical information through various MCP clients including ChatGPT Deep Research, Cursor, and OpenAI Responses API.
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    A ChatGPT custom connector that enables users to access, create, and manage Google Workspace files (Drive, Docs, Sheets, Slides) directly through ChatGPT using OAuth 2.0 authentication.
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    An MCP server that provides detailed information about your development environment to the Cursor code editor, enabling more context-aware assistance.
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    CTX is a tool made to solve a big problem when chatting with LLMs like ChatGPT or Claude: giving them enough context about your project.
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    A comprehensive suite of four MCP servers providing real-time stock market data, currency conversion between 160+ currencies, world timezone conversion, and unit conversion across 10 measurement categories. Features beautiful web interfaces and ChatGPT integration capabilities.
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    Allows AI tools like Cursor, VS Code, Claude, ChatGPT, and Windsurf to access the latest Astro documentation in a structured way, enabling accurate answers about Astro's features, APIs, and best practices.
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    A Model Context Protocol server that enables Docker container management through natural language interactions using a custom GPT interface.
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    A minimal MCP server template for deploying to Tencent Cloud EdgeOne Pages using Next.js and edge functions. Demonstrates tool registration and widget rendering with the hello_stat example tool.
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    A middleware API that connects AI assistants like ChatGPT to Captain Data tools for extracting information from LinkedIn company and profile pages.
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    Provides real-time system metrics and information through a Model Context Protocol interface, enabling access to CPU usage, memory statistics, disk information, network status, and running processes.
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    Enables searching and retrieving detailed information about MCP servers from the official MCP registry. Provides tools to list servers with filtering options and get comprehensive details about specific servers.
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    Provide information about the games you played and how long you played them for to an LLM
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    An MCP server that allows Cursor users to fetch real-time information about Zendesign design system components.
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    Enables agents to query information about gems in a Ruby project's Gemfile, including source code and metadata.
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    MIT License
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    A persistent memory implementation using a local knowledge graph that lets Claude remember information about users across conversations.
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    A Model Context Protocol server that provides natural language access to Cortex API, enabling users to query information about their system's structure and make faster decisions about services, incidents, and team responsibilities.
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    Provides professional cycling data from FirstCycling, allowing users to retrieve comprehensive information about cyclists, race results, historical cycling data, and team information through natural language queries.
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    Enables AI assistants to search and retrieve information about Terraform providers and modules from the public Terraform registry, including detailed documentation, version information, and resource specifications.
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    An MCP server that implements Retrieval-Augmented Generation to efficiently retrieve and process important information from various sources, providing accurate and contextually relevant responses.
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    Enables AI agents to query Korean listed companies' financial statements, public disclosures, executive information, and shareholder structures in real-time using the DART API.
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    Provides real-time Dutch railway (NS) travel information including train schedules, delays, journey planning, ticket prices, and station details for navigating the Netherlands by train.
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    An MCP server that provides real-time delay information for JR East train lines, accessible via MCP clients like Claude Desktop through the 'getDelays' tool.
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    MIT License