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Connect ChatGPT to your Daysync account to work with your tours in conversation. Daysync is available as a ChatGPT plugin, so there’s no URL to copy and no developer mode to enable.

Add Daysync to ChatGPT

Open the Daysync plugin in ChatGPT.
1

Open the Daysync plugin

Open the Daysync plugin in ChatGPT and sign in to ChatGPT if prompted.
2

Connect

Select Connect on the Daysync plugin page.
3

Sign in to Daysync and approve access

Sign in to the Daysync account you want to use, then review and approve the requested permissions. You’ll be returned to ChatGPT once connected.Daysync asks you to sign in each time you connect so that the account associated with the connection is explicit. See Authentication.
4

Start using it

Start a new conversation and add Daysync from the tools menu (or mention @Daysync).Confirm the account with “Which Daysync account am I connected to?”, then try “List my Daysync organizations.”
On ChatGPT Business or Enterprise, a workspace admin may need to enable the Daysync plugin before members can connect.

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Manual setup (developer mode)

If the plugin isn’t available for your account or workspace, you can add Daysync as a custom MCP connection instead.
1

Enable developer mode

In ChatGPT, open Settings → Security and login and turn on Developer mode.
Security and login selected in ChatGPT settings, with the Developer mode switch highlighted.

Open Security and login, then turn on Developer mode. The screenshot shows the switch before it is enabled.

Developer mode availability can depend on your account and workspace policy. If it is already enabled, continue to the next step.
2

Open Plugins and select +

Open Plugins, then select the + button in the top-right corner, beside the search field.
ChatGPT Plugins page with the top-right plus button outlined in teal.

Select the + button in the top-right corner of Plugins, outlined in teal.

3

Add the Daysync MCP connection

Enter Daysync as the name and a description such as Work with your Daysync tours and schedules.Under Connection, enter the public MCP server URL:
Use OAuth authentication. Daysync publishes the authentication metadata for discovery; you do not need to provide a client ID or client secret. Create the connection.
4

Sign in and review access

Sign in to the Daysync account you want to use, then review and approve the requested permissions.Daysync asks you to sign in each time you connect so that the account associated with the connection is explicit. See Authentication.
5

Use Daysync in a conversation

Start a new conversation and add the Daysync connection from the tools menu.Ask “Which Daysync account am I connected as?” to confirm the account, then try “List my Daysync organizations.”

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If the connection is unavailable

If the plugin link doesn’t open or Daysync shows as unavailable, check that you’re signed in to ChatGPT and that your workspace allows the plugin. For the manual setup, confirm that the URL includes /mcp, that Developer mode is enabled, and that your workspace permits custom MCP connections. A missing option alone does not establish that your subscription plan is unsupported. See Troubleshooting for connection and permission issues.

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Disconnect

Manage or remove Daysync from Plugins in ChatGPT. You can also ask ChatGPT to disconnect, or revoke the connection in the Daysync web app under Settings → Integrations.

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More information

See OpenAI’s connection guide for current ChatGPT setup requirements, and Daysync’s tool catalogue for supported operations.