"Open Access" matching MCP servers:

An open MCP server that gives any AI agent SSH access to remote Linux/Unix machines — shell commands, file read/write, and SFTP transfers.

An MCP server that provides LLMs with full read/write access to an Open Knowledge Format (OKF) knowledge bundle, enabling structured, persistent long-term memory.

A local MCP server that delegates tasks to a subagent runtime via OpenAI-compatible interfaces, enabling file operations, command execution, and rollback of local file changes.

Provides full access to a local Windows computer via MCP, enabling arbitrary command execution, file operations, and process management through a secure stdio or HTTP tunnel.

Enables Claude to interact with FTP servers through natural language commands, allowing users to list directories, download/upload files, create directories, and delete files/directories on FTP servers.

MCP server that enables searching books by author via Open Library API and searching keywords inside local text files.

Enables AI clients to securely reach and control tools running on your own computers through a relay and outbound device agent.

Open-source Windows MCP policy gateway that gives ChatGPT controlled access to local files and terminal sessions with workspace-scoped permissions, guarded writes, session-owned processes, and audit logging.

Enables MCP clients to inspect and export OpenPencil .fig and .pen files directly from disk, supporting operations like info, tree traversal, XPath queries, linting, and conversion to various formats without the desktop app or CLI.

Converts DOIs and arXiv IDs into local PDFs via official open-access APIs, designed as an agent-facing companion for academic paper retrieval.

A Model Context Protocol server that allows AI to run any Open Source tool via pkgx, enabling Claude to execute commands while maintaining read-only access to the filesystem.

Local-first MCP runtime for fast, reversible, template-aware Excel automation, enabling agents to manipulate live Excel workbooks with safety features like snapshots and rollbacks.

An MCP server for read-only inspection of AutoCAD DWG files, enabling AI agents to open drawings, query objects by handle or filter, and explore properties and references.

A local-first, open-source harness for organizing your files with an AI agent.

Enables Claude Desktop to directly access and manage Obsidian vault files, supporting reading, writing, patching, searching, and file operations without requiring Obsidian to be open.

Enables running Claude Skills locally on your Mac with sandboxed execution, supporting document processing and integration with MCP-compatible AI tools while ensuring data privacy.

Enables coding agents and human reviewers to share a single live view of code, letting the agent open and annotate specific lines while the human marks ranges to ask about, all without any write access to the underlying files.

Enables ChatGPT's web interface to operate a real Mac by executing shell commands and reading or writing files over a reverse SSH tunnel, without installing a client or consuming API quota.

Turns any Linux server into an AI-agent-accessible machine over HTTPS, allowing MCP clients like ChatGPT, Claude, and Grok to securely control files, run shell commands, inspect system state, query SQLite, and work with git behind a bearer token.

Security-first MCP server plugin for Obsidian that gives AI assistants granular, permissioned access to vault notes and files through tools like read, write, delete, rename, search, and open-notes.