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Serves Opentrons documents for Machine Comprehension Protocol (MCP) clients.
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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
OP
OpenWeather
CommunityProvides global weather forecasts and current weather conditions.
OP
Openwebui
CommunityProvides Model Context Protocol services, enabling knowledge base integration and retrieval for OpenWebUI.
OT
OpenWebUI Tool
CommunityProvides a versatile ToolRegistry OpenAPI/MCP server for AI platforms like Open-WebUI and Cherry-Studio.
OP
OpenZIM
CommunityTransforms static ZIM archives into dynamic knowledge engines for large language models, enabling offline access and search of ZIM format knowledge bases.
OO
Opera Omnia
CommunityProvides programmatic access to the rich collection of JSON datasets from the Opera Omnia project.
OP
Opgen
CommunityGenerates strong passwords using configurable character sets and wordlists, copying the result to the clipboard.
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OPNsense
CommunityProvides OPNsense API functionality through a Model Context Protocol (MCP) interface, enabling interactive network and system management.
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OpReturn
CommunityIntegrates with opreturnbot.com to provide MCP server functionality.
OP
Optimizer
CommunityProvides a mathematical optimization server leveraging PuLP and OR-Tools.
OC
Options Chain
CommunityProvides options chain data and historical prices from the Tradier Sandbox API for use within Claude Desktop.
OH
Oracle HCM Cloud by CData
CommunityEnables connection to Oracle HCM Cloud data from Claude Desktop using CData JDBC Drivers.
OR
Oraichain
CommunityEnables the building and deployment of AI agents with blockchain capabilities.
OR
Orchestrica
CommunityOrchestrates and manages multiple AI agents built on Agentica for scalable, LLM-centric interactions.
OR
Ordiscan
CommunityRetrieves information about Ordinals and Runes on the Bitcoin network.
OR
Org
CommunityManages org-mode and org-roam knowledge bases by providing search, content access, and note linking capabilities via the Model Context Protocol.
OR
Origin
CommunityManages multiple MCP servers through a single proxy.
OR
Origins
CommunityGathers information from various smart home devices and services around a house.
OR
Orly
CommunityGenerates O'Reilly-style parody book covers that display directly within the Claude Desktop application.
OD
Orm Discovery
CommunityEnables users to query and interact with tools via a command-line interface.
OR
Orshot
CommunityGenerates dynamic images from Orshot templates using natural language prompts within Claude, Cursor, and other MCP Server-compatible applications.
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Os
CommunityProvides access to Ordnance Survey APIs through a standardized protocol.
OI
Os Info
CommunityProvides up-to-date information about the operating system.
OS
Osmmcp
CommunityProvides precision geospatial tools for large language models (LLMs) through the Model Context Protocol (MCP).
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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