"Persistent" matching MCP servers:

Persistent project context (AGENTS.md), cross-session memory, and identity — discoverable by any MCP client.

An open engine that gives AI persistent, reusable UI components with a writable component registry, versioned data storage, and a shell runtime, enabling AI to create, save, and reuse single-purpose apps.

Enables AI agents to read, write, search, and manage .klypix canvas files for persistent spatial memory across sessions.

Provides a persistent Docker computer with terminal, file editing, and optional desktop GUI control through a Three.js interface.