4th Brain MCP Server

Create notes, search, & think with your Fabric AI workspace

MCP server to interact with Routine: calendars, tasks, notes, etc.

From the creators of Wunderlist — the all-in-one task management app for to-do lists, notes, and projects. AI-powered productivity that replaces 5 apps.

Multi-device file sync, dev-doc CRUD, task management, and session handoffs for AI agents - MCP + OpenAPI dual surface.

Portable, cloud-hosted AI memory you own - structured memories, tasks, goals, and notes that work across Claude, ChatGPT, Gemini, and any MCP client.

Interact with your Anytype data through its API, enabling AI assistants to access your information.

Access and manage your library on Apple Books.

Integrate with Apple's native apps like Contacts, Notes, Messages, and Mail.

Interact with Apple Notes using natural language on macOS.

MCP server for Apple Notes with semantic search and CRUD operations. Claude searches, reads, creates, updates, and manages your Apple Notes through natural language.