Show HN: Talk to your Google Calendar (read/create/edit/delete events by voice)

Show HN: Talk to your Google Calendar (read/create/edit/delete events by voice)(calendarflow.dev)

1 points by Rostik312 165 days ago | 1 comment

Hey HN,

I’m a solo dev and former Uber driver, and I made a voice assistant so I can control my Google Calendar entirely by voice.

Siri works for very simple “create event” requests, but it often misunderstands my accent, puts events at the wrong time, and there’s no easy way to revert. I also didn’t want a heavy “AI calendar” app that tries to rearrange my whole schedule. So I used OpenAI’s Agents SDK with the Google Calendar API and let it read / create / edit / delete events directly.

Once you sign in and connect Google, it operates on your calendar. Example commands: - “Schedule Lunch with Sarah tomorrow at 1 pm.” - “Move my 1 pm lunch with Sarah to Saturday, same time.” - “Delete my lunch with Sarah on Saturday at 1pm.” - “What do I have Friday afternoon?” - "Revert the last change."

I’d love feedback on where it misunderstands commands, fails to execute what you meant, or does something surprising.

Rostyslav

Rostik312 165 days ago |

More context

Last month I stopped driving for Uber and gave myself 9 months of runway to ship products. I organize my life in Google Calendar and got tired of fighting Siri to create or move events while walking or driving, so I built this for myself first.

Stack

Web app: Next.js using OpenAI’s Agents SDK + realtime API Backend: tool calls to the Google Calendar API (list / create / update / delete events) Infra: Convex DB + Clerk for auth

Calendar data stays in Google; the app only reads/writes via the API User OpenAI API keys are stored encrypted

7‑day free trial on my API key Optional early “founder” lifetime license, where you bring your own OpenAI API key and pay usage directly Feedback I’m looking for

Cases where it clearly misunderstood what you wanted Cases where it executed the wrong thing (wrong time / wrong event / partial change) Cases where it failed to find the correct event.

For debugging purposes, I have added a transcription component that lets you copy the user messages, assistant messages, and assistant tool calls. You can copy it and send it to my email.