The GitHub repository "modelcontextprotocol/servers" is a collection of reference implementations for the Model Context Protocol (MCP). MCP is a protocol that allows Large Language Models (LLMs) to have secure, controlled access to tools and data sources. This repository contains servers implemented with either the TypeScript MCP SDK or the Python MCP SDK, demonstrating the versatility and extensibility of MCP.

The servers in this repository are categorized into two groups: Reference Servers and Third-Party Servers. Reference Servers are demonstration servers that aim to showcase MCP features and the TypeScript and Python SDKs. They include servers for AWS KB Retrieval, Brave Search, EverArt, Everything, Fetch, Filesystem, Git, GitHub, GitLab, Google Drive, Google Maps, Memory, PostgreSQL, Puppeteer, Redis, Sentry, Sequential Thinking, Slack, Sqlite, and Time.

Third-Party Servers, on the other hand, are maintained by companies building production-ready MCP servers for their platforms. These servers are divided into two subcategories: Official Integrations and Community Servers. Official Integrations include servers for 21st.dev Magic, Adfin, AgentQL, AgentRPC, Aiven, Apify, APIMatic MCP, Audiense Insights, Axiom, Bankless Onchain, BICScan, Box, Browserbase, Chargebee, Chroma, Chronulus AI, ClickHouse, Cloudflare, Comet Opik, Convex, Dart, DevHub, E2B, EduBase, eSignatures, Exa, Firecrawl, ForeverVM, Inbox Zero, Inkeep, JetBrains, Kagi Search, Keboola, Logfire, Langfuse Prompt Management, Lingo.dev, Mailgun, Make, Meilisearch, Metoro, Milvus, MotherDuck, Needle, Neo4j, Neon, OceanBase, Octagon, Oxylabs, Perplexity, Qdrant, Ramp, Raygun, Rember, Riza, Search1API, ScreenshotOne, Semgrep, SingleStore, Stripe, Tavily, Thirdweb, Tinybird, UnifAI, Unstructured, Vectorize, and Verodat. Community Servers, on the other hand, are a growing set of community-developed and maintained servers that demonstrate various applications of MCP across different domains. They are untested and should be used at your own risk.

Overall, this repository provides a wide range of servers that demonstrate the capabilities and potential uses of MCP, a protocol that enables LLMs to have secure, controlled access to tools and data sources.