NUnUR
Community
Enables natural language interactive control of Universal Robots via the Model Control Protocol (MCP) by integrating a large language model (LLM).
Directory
MCP Server Directory
Browse 6,627+ Model Context Protocol servers for Claude, Cursor, and VS Code. Find the perfect tools for your AI workflow.
MCP Servers listings
NU
NVIDIA USDCode
CommunityIntegrate NVIDIA's USDCode model into your coding environment for instant assistance with Isaac Sim, USD, and Python.
NA
Nylas API
CommunityFacilitates learning and integration with the Nylas API by providing documentation, code samples, and interactive tools.
OA
Oats
CommunityGenerates a TypeScript server from an OpenAPI specification, wrapping it for use as an MCP server.
OA
Oauth2 Authorization Server
CommunityProvides an OAuth2 authorization server implementation using Spring Boot 3 and Java 24.
OB
Oboyu
CommunityIndexes and searches text-based documents, specializing in Japanese language processing with semantic search and reranking.
OB
Observe
CommunityProvides an unofficial, experimental Model Context Protocol (MCP) server to interface large language models with the Observe platform for data analysis and troubleshooting.
Observe Community
CommunityProvides access to Observe API functionality, OPAL query assistance, and troubleshooting runbooks for LLM models through a Model Context Protocol server.
OF
Obsidian Fetch
CommunityRetrieves information from Obsidian vaults for use with Machine Comprehension and Processing (MCP) servers.
Connects AI assistants to GitHub-hosted Obsidian vaults, enabling seamless reading, searching, and analysis of notes and documentation.
OI
Obsidian Index
CommunityEnables semantic search over an Obsidian vault and exposes recent notes as resources for MCP clients.
OI
Obsidian Integration
CommunityEnables AI assistants to interact with an Obsidian vault via the Model Context Protocol.
OL
Obsidian Local REST API
CommunityProvides intelligent, task-oriented tools for interacting with Obsidian vaults through a local REST API.
ON
Obsidian Notebook
CommunityIntegrates Claude with Obsidian notes for semantic and full-text search capabilities.
OC
OCI Core Services
CommunityManages Oracle Cloud Infrastructure (OCI) compute instances and network operations through a dedicated API.
OC
OCR
CommunityLeverages native Tesseract (C++) with Node.js to provide high-performance OCR, offering significantly faster text extraction than JavaScript alternatives and seamless integration…
OC
Octave
CommunityEnables non-interactive execution of Octave scripts via the Model Context Protocol (MCP).
OD
Octopus Deploy
CommunityAutomates management of Octopus Deploy projects, releases, and deployments via the Model Context Protocol.
OD
Odbc
CommunityConnects large language model clients to ODBC data sources, enabling data analysis and insight generation.
OB
Odoo by CData
CommunityEnables querying live Odoo data from Large Language Models via a Model Context Protocol (MCP) interface.
OF
Office
CommunityFacilitates operations on Office files including Excel, Word, PowerPoint, and Outlook.
Office 365 by CData
CommunityEnables querying of live Office 365 data from LLMs like Claude Desktop using a Model Context Protocol (MCP) interface.
OC
Offline Cline Marketplace
CommunitySynchronizes MCP servers from the official Cline Marketplace for offline access.
OG
Ogury
CommunityFacilitates AI access to Ogury's campaign reporting API for detailed performance metrics and reports.
What Are MCP Servers?
MCP (Model Context Protocol) servers are tools that connect AI assistants like Claude, Cursor, and other AI coding tools to external data sources, APIs, and services. They enable AI models to access real-time information, execute code, interact with databases, and perform actions beyond their base capabilities. Check out our curated collection of the best MCP servers for Cursor →
How MCP Servers Work
MCP servers act as intermediaries between AI assistants and external systems. When you ask Claude or Cursor to perform a task requiring external data, the MCP server handles the request, fetches the data, and returns it in a format the AI can understand and use.
Types of MCP Servers
- Code Completion Servers: Enhance AI coding assistants with context from your codebase, documentation, and project structure.
- API Integration Servers: Connect AI to REST APIs, GraphQL endpoints, and web services for real-time data access.
- File Management Servers: Enable AI to read, write, and organize files in your development environment.
- Data Analysis Servers: Connect AI to databases, data warehouses, and analytics tools.
Choosing the Right MCP Server
When selecting an MCP server, consider:
- IDE Compatibility: Ensure it works with Cursor, VS Code, or your preferred editor
- Use Case Match: Choose servers designed for your specific needs
- Maintenance Status: Prefer actively maintained servers with recent updates
- GitHub Activity: Higher stars and recent commits indicate quality
Popular Use Cases
- AI-Powered Code Completion Enhance Cursor and Claude with project-specific context.
- Automated API Testing Connect AI to your APIs for intelligent testing and debugging.
- Database Querying Let AI write and execute SQL queries against your databases.
For detailed setup guides, see our Complete MCP Server Setup Guide →
Frequently Asked Questions About MCP Servers
Everything you need to know about installing, using, and troubleshooting Model Context Protocol.
How do I install MCP servers in Cursor?
To install MCP servers in Cursor: 1) Open Cursor settings (Cmd+,), 2) Navigate to MCP Servers section, 3) Click 'Add Server', 4) Enter server configuration (name and command), 5) Restart Cursor. Check out our curated collection of the best MCP servers for Cursor with detailed setup guides.
What's the difference between MCP servers and VS Code extensions?
MCP servers are protocol-level integrations that work across multiple AI assistants (Claude, Cursor, etc.), while VS Code extensions are editor-specific. MCP servers provide context to AI models, whereas extensions add IDE functionality. MCP is more portable and AI-focused.
Are these MCP servers free to use?
Most MCP servers listed are open-source and free. Some enterprise connectors (like Salesforce or Jira) may require paid API access to the underlying service, but the MCP server code itself is usually free.
Can I build my own MCP server?
Yes! The Model Context Protocol is open standard. You can build servers in Python or TypeScript/Node.js to expose your own internal APIs or databases to Claude and Cursor.
What is a Model Context Protocol (MCP) server?
An MCP server is a lightweight program that exposes specific capabilities (data access, tool execution, prompts) to AI assistants through a standardized protocol. MCP servers allow Claude and other AI models to securely interact with external systems like databases, APIs, file systems, and web services while maintaining security boundaries.
How do MCP servers work with Claude?
MCP servers connect to Claude Desktop or other MCP-compatible clients through a standardized JSON-RPC protocol. When you configure an MCP server in Claude Desktop, Claude can access its resources (data/content), use its tools (functions to execute), and leverage its prompts (templated interactions). The protocol ensures secure, controlled access to external capabilities.
What are the best MCP servers to start with?
Essential MCP servers for beginners include: Filesystem (local file access), SQLite/PostgreSQL (database queries), GitHub (repository access), Brave Search (web search), and Memory (persistent context). These cover common use cases and have excellent documentation. Start with 2-3 servers and expand based on your needs.
How do I install and configure MCP servers?
Most MCP servers install via npm (npx) or Python (uvx/pip). Configure them in Claude Desktop's config file (claude_desktop_config.json) by specifying the command, arguments, and any required environment variables like API keys. Our directory links to each server's documentation with specific installation instructions.
Are MCP servers secure?
MCP servers run locally on your machine with explicit permissions you configure. They can only access resources you authorize, and Claude cannot bypass these boundaries. However, always review server code, use official/verified servers when possible, limit permissions to what's necessary, and be cautious with servers that request broad access.
What's the difference between MCP resources, tools, and prompts?
Resources are data sources Claude can read (files, database results, API responses). Tools are functions Claude can execute (run queries, send messages, create files). Prompts are pre-defined templates for common interactions. Most MCP servers expose one or more of these capability types.
Which AI clients support MCP besides Claude Desktop?
MCP is supported by Claude Desktop (official), Cursor IDE, Continue (VS Code extension), and various community implementations. The protocol is open, so support is expanding to more AI development tools. Check our compatibility filters to find servers tested with your preferred client.
How often is this MCP servers directory updated?
Our MCP servers directory is updated weekly with new servers, documentation improvements, and compatibility updates. We monitor GitHub releases, community contributions, and Anthropic announcements to ensure our listings reflect the latest MCP ecosystem developments.
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