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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.

9,969 servers. Last updated -

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    A local MCP server that enables AI applications like Claude Desktop to securely access and work with Obsidian vaults, providing capabilities for reading notes, executing templates, and performing semantic searches.
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    MIT License
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    MCP server for accessing macOS Calendar events
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    MIT License
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    An MCP server that enables AI assistants like Claude to access and manipulate Apple Notes on macOS, allowing for retrieving, creating, and managing notes through natural language interactions.
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    MIT License
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    A personal knowledge management system that transforms daily notes into organized, searchable knowledge using the Model Context Protocol.
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    A personal knowledge management system built on the Model Context Protocol that transforms daily notes into organized, searchable knowledge.
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    Enables AI assistants to interact with Obsidian vaults, providing tools for reading, creating, editing and managing notes and tags.
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    This is a connector to allow Claude Desktop (or any MCP client) to read and search any directory containing Markdown notes (such as an Obsidian vault).
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    AGPL 3.0
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    This MCP Server enables users to interact with HubSpot's marketing events API, allowing management of marketing event data through natural language commands.
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    This project implements a Model Context Protocol (MCP) server for connecting AI models with Obsidian knowledge bases. Through this server, AI models can directly access and manipulate Obsidian notes, including reading, creating, updating, and deleting notes, as well as managing folder structures.
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    MIT License
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    An MCP server for managing and persisting notes, offering CRUD operations, note summarization, and resource-based access via a note:// URI scheme.
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    MIT License
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    Google Calendar integration in Cursor IDE. This server enables AI assistants to manage Google Calendar events through natural language interactions.
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    This server integrates with the Ticketmaster API to provide AI agents with real-time concert and event data, enabling dynamic fetching and formatting for ease of interpretation.
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    A server implementation that allows AI assistants to read, create, and manipulate notes in Obsidian vaults through the Model Context Protocol.
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    MIT License
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    A Model Context Protocol server that enables AI assistants to read, write, and manipulate notes in your Obsidian vault through a standardized interface.
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    ISC License
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    Enables semantic search across Obsidian vaults using vector embeddings and ChromaDB. Supports multiple vaults with real-time indexing and provides both MCP server and CLI interfaces for natural language querying of notes.
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    Enables direct file system access to Obsidian vaults with auto-discovery, full-text search, and note operations. Supports reading, writing, and searching across Obsidian notes without requiring plugins or REST API.
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    Manages markdown notes in a specified directory, allowing users to create, read, update, and list notes through the Model Context Protocol.
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    Enables AI assistants like Claude to read, search, create, and manage notes in Obsidian vaults, with features for link analysis, tag management, daily notes, templates, and optional Google Calendar integration. Provides comprehensive vault operations including batch updates, backlinks discovery, and secure file management with path traversal protection.
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    Obsidian vault connector for Claude Desktop - enables reading and writing Markdown notes using Model Context Protocol (MCP)
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    5
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    • Apple
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    Enables LLMs to read, create, and manage Google Calendar events through a standardized interface, including features like listing calendars, managing events, and processing calendar information from screenshots and images.
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    Connects Obsidian vaults stored in iCloud Drive to AI models via the Model Context Protocol, allowing AI assistants to access and interact with your Obsidian notes.
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    MIT License
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    Provides an MCP server that allows AI assistants to interact with Obsidian vaults, enabling reading/writing notes, managing metadata, searching content, and working with daily notes.
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    MIT License
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    Lets LLMs read and manage Google Calendar events.
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    MIT License
    • Apple
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    A Model Context Protocol server that enables semantic search and retrieval of Apple Notes content, allowing AI assistants to access, search, and create notes using on-device embeddings.
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    A lightweight server that enables AI assistants like Cursor & Claude to read from and write to Obsidian vaults, allowing actions like creating notes, checking existing content, and managing todos through natural language.
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    A server that enables Cursor users to view, create, and manage Google Calendar events through natural language commands using the MCP protocol with Google OAuth2 authentication.
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    Enables semantic search and RAG (Retrieval Augmented Generation) over your Apple Notes.
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    Provides a standardized interface for AI assistants to interact with Obsidian vaults through a local REST API, enabling reading, writing, searching, and managing notes.
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    MIT License
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    Allows the AI to read from your local Apple Notes database (macOS only)
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    MIT License
    • Apple
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    Enables comprehensive calendar management with capabilities to create, list, update, and delete events through a Model Context Protocol server integrated with Google Calendar.
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    MIT License