MCP · last checked Nov 6, 2026
Connect DueBrain
DueBrain is a remote MCP server. The URL is https://duebrain.com/api/mcp. Clients sign in with OAuth and dynamic client registration. A tool runs only when the client calls it. DueBrain does not scrape ChatGPT, Claude, Gemini, or Grok.
Saving a chat needs a trial or Pro. Search, the decision list, and a context pack still work after the trial ends. A self-hosted app uses its own https origin in place of duebrain.com.
1. Sign in
Checking sign-in…
2. Pick your AI
https://duebrain.com/api/mcpClaude on the web and Claude Desktop. Mobile can use the connector after it is added there.
- Open Customize → Connectors → Add custom connector.
- Paste https://duebrain.com/api/mcp.
- Sign in when Claude asks. It can register the OAuth client automatically.
- Approve the DueBrain consent screen. Google is asked only for openid, email, and drive.file.
Works on Free, Pro, Max, Ultra, Team, and Enterprise. Free allows one custom connector. On Team and Enterprise, an owner adds the connector first.
Last checked Nov 6, 2026. Get started with custom connectors (opens in a new tab) · Add an unlisted connector (opens in a new tab)
To save, just say “save to DueBrain”.
Make it more reliable (optional).
DueBrain is my personal memory, connected as a tool. When I say “save to DueBrain”, “save this” or “remember this”, save the conversation (or the part I mean) with save_chat, including any decisions we made. When we reach a decision, offer to log it and log it only if I agree. Before answering questions about past work, decisions or preferences, like “what did we decide about X?”, search DueBrain first and say which saved notes you used. Never save anything unless I ask or confirm.
- Paste into your Project's instructions (open the project, then Set project instructions).Last checked Nov 6, 2026. How to create and manage projects (opens in a new tab)
Download DueBrain Skill (.zip)Last checked Nov 6, 2026. Agent Skills overview (opens in a new tab) · How to create custom skills (opens in a new tab)
3. Try it
To save, just say “save to DueBrain”.
Make it more reliable (optional).
DueBrain is my personal memory, connected as a tool. When I say “save to DueBrain”, “save this” or “remember this”, save the conversation (or the part I mean) with save_chat, including any decisions we made. When we reach a decision, offer to log it and log it only if I agree. Before answering questions about past work, decisions or preferences, like “what did we decide about X?”, search DueBrain first and say which saved notes you used. Never save anything unless I ask or confirm.
- Claude. Paste into your Project's instructions (open the project, then Set project instructions).Last checked Nov 6, 2026. How to create and manage projects (opens in a new tab)
- ChatGPT. Paste into Settings > Personalization > Custom instructions, or a Project's instructions.Last checked Nov 6, 2026. ChatGPT custom instructions (opens in a new tab)
- Grok. Paste into Settings > Customize (custom instructions).Last checked Nov 6, 2026. Grok, including custom instructions (opens in a new tab)
- Gemini. Paste into Settings > Saved info (also shown as Instructions for Gemini), or create a Gem with it.Last checked Nov 6, 2026. Use Gems in Gemini Apps (opens in a new tab) · Personalization in Gemini Apps (opens in a new tab)
Download DueBrain Skill (.zip)Last checked Nov 6, 2026. Agent Skills overview (opens in a new tab) · How to create custom skills (opens in a new tab)
Save this conversation to DueBrain, including the decisions we made.Search DueBrain for what we decided about <topic>.
Sign in to watch for the first save.
Other ways to save
Paste, official exports, or the browser extension (opens in a new tab).