How to let Claude search your ChatGPT history

5 minutes 6 steps Updated

Quick answer

Kortex saves your ChatGPT chats on your computer. In the side panel, open the ⋯ menu, then MCP Connection. Name a key, choose Just my chats and click Generate key. Add the key to Claude and ask it to search your saved chats. Chrome must be open with Kortex installed.

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How to let Claude search your ChatGPT history
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Here's how to let Claude search your saved ChatGPT chats, with Kortex M C P. Claude can search only the chats Kortex has saved. So when Kortex asks, click Keep my chats in my Library.

Click the Kortex icon to open the side panel. Click the three dots, then M C P Connection. M C P is a way to let an AI assistant use a tool.

Type a name for the key, and pick a Tool profile. Under Tools it lists, choose Just my chats. Then click Generate key, and copy it.

Click Set up your client, and open its API key tab. Pick your app, and copy the command it shows. It already holds your key.

For Claude Code, paste the command into a terminal. Now ask Claude in plain words. For example: search my saved chats for the pricing decision I made in ChatGPT.

Claude uses Kortex to search, read the chat, and answer with its title, the AI it was on, and a link. To check what was sent, open the Library's Privacy view. Under Sent from this computer, each call that carried chat text is listed with the app's name, the chats sent and a time.

Likely secrets, such as API keys and passwords, are masked before a result leaves.

  1. Make sure your ChatGPT chats are saved

    Claude can search only the chats Kortex has saved. When Kortex asks, Keep your AI chats in your Library?, click Keep my chats in my Library. Chats from ChatGPT, Claude, Gemini and Grok then save in the background every few minutes while Chrome is open.

  2. Open MCP Connection

    Click the Kortex icon to open the side panel. Click ⋯ (Account and settings), then MCP Connection. MCP is a way to let an AI assistant use a tool.

    The MCP Connection sheet in the side panel: a key label, a Tool profile, and the choices Everything and Just my chats with token counts beside each.
    Choose what the key lets your assistant see.
  3. Make a key with Just my chats

    Type a name for the key, such as Claude Desktop, laptop, and pick a Tool profile. Under Tools it lists, choose Just my chats (recommended for chat Library use). Then click Generate key and copy it. It starts with kx_mcp_.

  4. Add the key to Claude

    Click Set up your client and open its API key tab. Pick your app and copy the command or config it shows. It already holds your key. For Claude Code, paste the command into a terminal. Other apps show their own steps on the same tab.

  5. Ask Claude to search your chats

    Ask in plain words, for example: Search my saved chats for the pricing decision I made in ChatGPT. Claude uses Kortex to search, read the chat, and answer with the chat's title, the AI it was on and a link. The first call after Chrome has been idle can take up to 30 seconds.

  6. Check what was sent

    Open the Library's Privacy view and look under Sent from this computer. Each call that carried chat text is listed with the app's name, the chats sent and a time.

    The Library's Privacy view, Sent from this computer: rows naming an MCP app, Notion, a copied pack, ChatGPT, Claude and Gemini Notebook, each with the chats sent and a time.
    Sent from this computer: when, where to, which chats and how many characters.

If it doesn’t work

Claude says it cannot reach Kortex, or the first call is slow
Every call runs inside your Chrome extension, so Chrome must be open with Kortex installed. The first call after Chrome has been idle can take up to 30 seconds. Later calls are fast.
Claude cannot find a chat I know I had
Check that the chat is in the Library. Chats in a private folder are left out of every list and search on purpose. Also check that saving is on for the ChatGPT row in Saving your chats.
I lost the key or want to stop Claude's access
Make a new key in MCP Connection. To stop a key working, open the dashboard's Agents view and click Revoke next to it. Active keys are listed in MCP Connection too.

Questions people ask

Something we missed? Ask us.

What can Claude do with a Just my chats key?

Five things: search your chats, list your newest chats, read one chat, find passages that answer a question, and list the facts in your Memory. Nothing is generated. Passages come from your own chats, each cited to its message.

Can Claude change my chats?

Not with the basic key. Filing chats, adding notes, pinning and saving memory cards need an extra option and the Standard or Full tool profile. Every write asks first.

Are my passwords and keys safe?

Likely secrets such as API keys, tokens, passwords and card numbers are masked before a result leaves. Chats in a private folder are never shown. Each call is listed in the Privacy view.

Does this search ChatGPT's own servers?

No. It searches the chats Kortex saved on your computer. They can be from ChatGPT, Claude, Gemini, Perplexity or Grok. The full setup is in the MCP docs.

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