"Opera GX" matching MCP servers:

A tiny MCP server enabling note management through five tools: add, get, update, delete, and list notes. Stores notes in a file configured via MCP_NOTES_FILE or --notes-file, with atomic saves and a write lock.

MCP server for DocsMint, an AI-native knowledge workspace. It gives AI agents scoped access to search, read, create, update and organize documents using hybrid retrieval and GraphRAG.

A simple notes system that allows creating, storing, and accessing text notes through MCP resources and tools, with prompt support for generating summaries of all stored notes.

Enables managing a local notes file through add, get, update, delete, and list operations via MCP.

A lightweight personal knowledge base MCP server that lets clients store, search, organize, and summarize research notes from a local JSON file.