SkyOS

A memory MCP server for Claude, ChatGPT and Codex

Run one yourself, or add SkyOS with one URL.

Updated 18 October 2026

Run the reference server

Source: modelcontextprotocol/servers on GitHub.

  1. Add it to your app’s MCP config

    Its command:

    npx -y @modelcontextprotocol/server-memory

  2. What it keeps

    A knowledge graph of entities, relations and facts, in a local file, memory.jsonl.

  3. Where it runs

    On your computer. Each app starts its own copy.

Or add SkyOS

A hosted memory MCP server: add its URL, sign in, and each project gets dated notes you can read at app.skyos.ink.

Three tools: skyos_recall, skyos_save and skyos_use_memory. In the MCP Registry as ink.skyos/memory.

Get started See how to connect

Free while in beta. No card needed.

  • Claudehttps://api.skyos.ink/mcp/claude
  • ChatGPThttps://api.skyos.ink/mcp/chatgpt
  • Codexhttps://api.skyos.ink/mcp/codex
  • Claude Codeclaude mcp add --transport http --scope user skyos https://api.skyos.ink/mcp/claude

Related