"Sketch" matching MCP servers:

Exposes one SQLite-backed notes store over both stdio and an HTTPS/SSE endpoint, letting Claude Code, Claude Desktop, Claude web, and Claude mobile read and write the same shared state with full-text search. Provides write, read, search, and list tools so a note created on one surface is immediately visible from any other.

A lightweight MCP server that adds spaced-repetition flashcards (SM-2) to AI assistants, storing data locally in SQLite and enabling card creation, review, and scheduling.