> ## Documentation Index
> Fetch the complete documentation index at: https://docs.daysync.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Connect ChatGPT

> Add the Daysync MCP server to ChatGPT.

ChatGPT can connect to remote MCP servers through **developer mode**. The Daysync server needs no special configuration beyond its URL.

```text theme={null}
https://mcp.daysync.com/mcp
```

<Note>
  Custom MCP connectors are a developer-mode feature and availability depends on your ChatGPT plan. If you cannot see the setting below, your plan does not currently expose it — [Claude](/mcp/connect-claude) supports custom connectors on its paid tiers.
</Note>

***

<Steps>
  <Step title="Enable developer mode">
    In ChatGPT, open **Settings → Connectors** and turn on **Developer mode** (under Advanced).
  </Step>

  <Step title="Add the server">
    Choose **Create** / **Add custom connector** and paste `https://mcp.daysync.com/mcp`. Name it *Daysync*.

    Leave the authentication settings on OAuth — the server publishes its own metadata, so the client discovers the endpoints itself. There is no client ID or secret for you to enter.
  </Step>

  <Step title="Sign in and consent">
    ChatGPT opens the Daysync sign-in page, then the consent screen listing the scopes being requested. Approve to finish.

    You will be asked to sign in on every connect, by design — see [Authentication](/mcp/authentication).
  </Step>

  <Step title="Confirm the account">
    In a new chat, ask **"which Daysync account am I connected as?"**. The `whoami` tool answers with the email on the connection.
  </Step>
</Steps>

***

## Enabling it in a conversation

Developer-mode connectors are not always on by default. In a new chat, open the tools menu and make sure *Daysync* is enabled before asking anything that needs it.

Then try:

> *List my Daysync organizations.*

***

## Notes and limits

* **Tool lists are cached per conversation.** After Daysync ships new tools, start a new chat to see them.
* **Write operations need confirmation.** ChatGPT will ask before running anything that changes data. Tools are annotated so destructive ones (deleting a tour, deleting a tag) are flagged as such.
* **Large reads can be truncated by the client.** Prefer narrower questions — a single day rather than a whole tour — or ask it to use `get_tour_data` with `dayIds`.

***

## Disconnecting

Remove the connector in ChatGPT's settings, and/or revoke from Daysync under **Settings → Integrations** in the web app. You can also just ask ChatGPT to **disconnect**, which revokes that one connection.

***

Next: [Authentication](/mcp/authentication) · [Tool catalogue](/mcp/tools) · [Troubleshooting](/mcp/troubleshooting)