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Connect your AI client to Mem’s MCP server. This page documents setup for Claude, ChatGPT, Claude Code CLI, Codex CLI, and Gemini CLI.

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Claude (web/desktop)

Use the following instructions to connect the Mem MCP server to Claude.
1

Open settings

Open the sidebar to get to the Customize page.
2

Add connector

On the Customize page, click Connectors, then click + to add a connector. Find Mem and add it.
3

Complete flow

Complete the OAuth flow to connect your Mem workspace.
Claude connector setup flow
1

Open connector settings

Open Settings -> Connectors.
2

Add custom connector

Click Add custom connector and enter:
3

Authenticate

Complete the OAuth flow to connect your Mem workspace.

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ChatGPT

1

Install Mem from the ChatGPT store

Open Mem on the ChatGPT store and click Connect.
2

Follow the prompts in ChatGPT

ChatGPT walks you through the remaining setup.

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Claude Code CLI

1

Add remote HTTP MCP server

2

Authenticate

Run /mcp in Claude Code and complete the browser OAuth flow.

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Codex CLI

1

Add Mem MCP in Codex CLI

2

Authenticate

Start a Mem tool call in Codex and complete the OAuth flow when prompted.

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Gemini CLI

1

Add Mem MCP in Gemini CLI

2

Authenticate

Run gemini, then /mcp auth mem to complete the browser OAuth flow.

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Provider docs

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Troubleshooting

  • Make sure your client can open a browser window for sign-in and consent.
  • If the flow was interrupted, disconnect and reconnect the Mem connector in your client.
  • Confirm you are signing in to the intended Mem account/workspace.
If you are on a Claude Team or Enterprise plan, a Claude Owner or Primary Owner needs to enable Mem for the organization before members can connect it.Ask the owner to add Mem in Organization settings -> Connectors. After Mem is available for the organization, connect your own Mem account from your Claude connector settings.
  • A direct 401 from https://mcp.mem.ai/mcp without auth is expected.
  • In your MCP client, reconnect Mem to refresh authentication and retry.
  • Verify the connector URL is exactly https://mcp.mem.ai/mcp.
  • Re-list connectors/servers in your client and confirm Mem is enabled.
  • Retry the setup flow for your client.
  • In Claude, open the + menu, then go to Connectors and confirm Mem is enabled for the current conversation.
  • Check Connectors -> Tool access. In On demand, Claude searches for the right connector before loading it, which can add an extra discovery step.
  • If you need Mem to be available every time in that conversation, switch Claude to Always available.
  • Be explicit in your prompt when needed, for example: Use the Mem connector for this task.
  • If Claude still does not load Mem, disconnect and reconnect the Mem connector, then retry the conversation.
  • Anthropic documents this behavior here: