Turnbook · Office #54,046

What it is

Calls itself “long-term memory”.

• Calls itself: long-term memory

“Local long-term memory shared by all your AI agents”

Where it puts itself

Positions itself as an alternative to CLAUDE.md. Rules out “account”, “cloud” and “telemetry”.

• Alternative to: CLAUDE.md
• Says it will not: account · cloud · telemetry

“Turnbook keeps every turn as it was said and shares it across every app and model on the PC.”

“How is this different from CLAUDE.md or an app's built-in memory?”

What it costs

A free tier, free forever.

• Free plan: free forever

“Free and open source.”

Who it sells to

Sells to developers. Built for teams. Available in 2 languages.

• Sells to: developers
• Company size: teams
• Languages: English · 한국어

“After pip install turnbook :”

“Teams, if you want them.”

How it runs

A command-line tool for Linux, Windows and macOS. Runs locally and works offline. Offers an API. Open source. AI is a side feature.

• Kind: cli
• Runs on: Linux · Windows · macOS
• Runs where: on the device, offline
• API: yes
• Open source: yes
• AI role: a side feature

“After pip install turnbook : { "mcpServers" : { "turnbook" : { "command" : " python " , "args" : [ " -m " , " graph_mind.mcp_server " ] } } }”

“…macOS / Linux:”

What it works with

Plugin for OpenCode. Names Claude Code, Claude Desktop and 2 more on its pages.

• Plugin for: OpenCode
• Names: Claude Code · Claude Desktop · Codex · +1

“Claude Code (Opus 5.5, effort high) and Codex (GPT-6.1-Sol, effort high) sharing one Turnbook memory.”

“Claude Desktop (Cowork) every turn reads its session files”

What it offers as proof

In beta. Claims “88.8%”. Try it without signing up. Publishes docs.

• Stage: beta
• Number claimed: 88.8%
• Trial asks for: nothing

“Beta. Used daily on Windows.”

“Free and open source.”