Model Context Protocol servers
This repository is a collection of reference implementations for the Model Context Protocol (MCP), as well as references to community-built servers and additional resources.
[!IMPORTANT] If you are looking for a list of MCP servers, you can browse published servers on the MCP Registry. The repository served by this README is dedicated to housing just the small number of reference servers maintained by the MCP steering group.
[!WARNING] The servers in this repository are intended as reference implementations to demonstrate MCP features and SDK usage. They are meant to serve as educational examples for developers building their own MCP servers, not as production-ready solutions. Developers should evaluate their own security requirements and implement appropriate safeguards based on their specific threat model and use case.
The servers in this repository showcase the versatility and extensibility of MCP, demonstrating how it can be used to give Large Language Models (LLMs) secure, controlled access to tools and data sources. Typically, each MCP server is implemented with an MCP SDK:
- C# MCP SDK
- Go MCP SDK
- Java MCP SDK
- Kotlin MCP SDK
- PHP MCP SDK
- Python MCP SDK
- Ruby MCP SDK
- Rust MCP SDK
- Swift MCP SDK
- TypeScript MCP SDK
🌟 Reference Servers
These servers aim to demonstrate MCP features and the official SDKs.
- Everything - Reference / test server with prompts, resources, and tools.
- Fetch - Web content fetching and conversion for efficient LLM usage.
- Filesystem - Secure file operations with configurable access controls.
- Git - Tools to read, search, and manipulate Git repositories.
- Memory - Knowledge graph-based persistent memory system.
- Sequential Thinking - Dynamic and reflective problem-solving through thought sequences.
- Time - Time and timezone conversion capabilities.
Archived
The following reference servers are now archived and can be found at servers-archived.
- AWS KB Retrieval - Retrieval from AWS Knowledge Base using Bedrock Agent Runtime.
- Brave Search - Web and local search using Brave's Search API. Has been replaced by the official server.
- EverArt - AI image generation using various models.
- GitHub - Repository management, file operations, and GitHub API integration.
- GitLab - GitLab API, enabling project management.
- Google Drive - File access and search capabilities for Google Drive.
- Google Maps - Location services, directions, and place details.
- PostgreSQL - Read-only database access with schema inspection.
- Puppeteer - Browser automation and web scraping.
- Redis - Interact with Redis key-value stores.
- Sentry - Retrieving and analyzing issues from Sentry.io.
- Slack - Channel management and messaging capabilities. Now maintained by Zencoder
- SQLite - Database interaction and business intelligence capabilities.
🤝 Third-Party Servers
[!NOTE] The server lists in this README are no longer maintained and will eventually be removed.
🎖️ Official Integrations
Official integrations are maintained by companies building production ready MCP servers for their platforms.
- 21st.dev Magic - Create crafted UI components inspired by the best 21st.dev design engineers.
- 2slides - An MCP server that provides tools to convert content into slides/PPT/presentation or generate slides/PPT/presentation with user intention.
- ActionKit by Paragon - Connect to 130+ SaaS integrations (e.g. Slack, Salesforce, Gmail) with Paragon’s ActionKit API.
- Adfin - The only platform you need to get paid - all payments in one place, invoicing and accounting reconciliations with Adfin.
- AgentOps - Provide observability and tracing for debugging AI agents with AgentOps API.
- AgentQL - Enable AI agents to get structured data from unstructured web with AgentQL.
- AgentRPC - Connect to any function, any language, across network boundaries using AgentRPC.
- Agentset - RAG for your knowledge base connected to Agentset.
- Airwallex Developer - Empowers AI coding agents with the tools they need to assist developers integrating with Airwallex APIs
- Aiven - Navigate your Aiven projects and interact with the PostgreSQL®, Apache Kafka®, ClickHouse® and OpenSearch® services
- Alation - Unlock the power of the enterprise Data Catalog by harnessing tools provided by the Alation MCP server.