ONLYOFFICE DocSpace MCP Server provides a Model Context Protocol (MCP) implementation for integrating large language models with the ONLYOFFICE DocSpace service. It exposes MCP tools that enable LLMs to perform DocSpace operations such as creating rooms and managing files and folders, with tools organized into logical sets and fine-grained enable/disable controls. The server supports multiple transport protocols (stdio, SSE, and Streamable HTTP) to accommodate different LLM communication patterns, and offers diverse authentication methods including API keys, Personal Access Tokens, and Basic authentication. Session initialization can configure authentication and tool selection via custom HTTP headers. The server is distributed in several formats: as a Docker image, a Docker MCP Server, an MCP bundle, and a Node.js application. A sample docker run configuration shows how to provide the DocSpace base URL and API key. The project is currently in preview state and may undergo breaking changes or contain bugs. Documentation is available in the docs directory, and the project is licensed under Apache-2.0.