Adding ReminderIt as a ChatGPT connector, step by step

ChatGPT's menus get relabelled from time to time, so the surest way to add ReminderIt is to understand what each step is doing rather than memorise a click-path. The flow itself is short and stable: point ChatGPT at ReminderIt's hosted connector URL, approve access on a consent screen, and confirm the tools loaded. Here is that flow, kept deliberately generic.

The one thing you need

There is a single piece of information to have ready: the connector URL, https://mcp.reminderit.com. No API key, no config file, no install. If a guide ever tells you to paste a key for the hosted connector, you are looking at the wrong method.

Everything else in the setup is ChatGPT's own interface asking for permission, which you grant by signing in.

Finding the connector settings

In ChatGPT, look for the area that manages connectors, integrations or custom tools, and choose the option to add a new custom connector. The exact label varies between versions and plans, so match on the idea rather than the precise words.

When it asks for a server or connector URL, that is where https://mcp.reminderit.com goes. Submit it to move on to authorisation.

What the consent screen shows

Once the URL is accepted, ChatGPT hands off to ReminderIt's OAuth consent screen. You will see a ReminderIt sign-in, then a prompt describing the access being granted to your account. This is normal and expected, not a warning to back out of.

Sign in and approve. Completing this sign-in is the step that actually connects the two; skip it and the connector will have no authority and no tools.

Confirming it worked

After approving, ChatGPT runs a discovery step and loads ReminderIt's tools, 25 of them covering reminders, voices and your account. The clearest proof it succeeded is to use one: ask "What reminders do I have?" and ChatGPT should answer from your account.

If instead you set your first reminder, say "Set a one-off call for 3pm today, Europe/London, saying pick up the parcel," a successful create and read-back confirms the connection end to end.

Keeping it working

Because menu names drift, do not rely on a screenshot from months ago. Rely on the constants: the URL never changes, and the OAuth sign-in is always the step that grants access. If tools ever stop loading, re-authorising or removing and re-adding the connector re-runs discovery.

The access you granted lives as a revocable key at reminderit.com/api-keys, so you are always in control. You can add the connector today from reminderit.com.