Help Center
Find answers to common questions about CommonTime, agent integration, and your account.
Getting Started
How do I create a poll?
Click "Create a Poll" on the home page, set a title and meeting type (weekly or specific dates), choose your time grid settings, and share the link with participants.
How do participants vote?
Participants open the poll link, enter their name, and tap or drag on the time grid to mark when they are available. No account is needed.
How do I finalize a meeting?
Once enough votes are in, visit the Results page to see the best slots ranked by availability and fairness. Choose one and click "Finalize" to lock the time and create calendar events.
Does CommonTime handle time zones?
Yes. Each participant sees the grid in their own detected time zone. The organizer can also set a canonical time zone for the meeting.
Frequently Asked Questions
Do participants need an account?
No. Anyone can vote with just a link — no account, no app download, no email required. Only the organizer needs an account to create polls.
How is CommonTime different from Doodle or When2Meet?
CommonTime is decision-first: it does not just collect votes, it recommends the fairest slot and helps you finalize the meeting directly to your calendar. It also has no ads, no tracker pixels, and a native API for AI agents.
What does "fairest slot" mean?
CommonTime's algorithm considers not just who is available, but who gets consistently excluded. It uses a fairness score (Gini coefficient) to flag slots that work for the majority while leaving the same people out every time.
What meeting types are supported?
Weekly recurring (e.g. standups, 1:1s) and specific dates (e.g. one-time events, interviews, offsites). Both support any group size.
Is CommonTime free?
Yes, CommonTime is free for everyone. Guest voting is always free with no limits. Advanced features for power users and teams are coming.
For AI Agents
Can AI agents use CommonTime?
Yes. CommonTime exposes a native MCP (Model Context Protocol) gateway so AI assistants like Claude, GPT, or custom agents can create polls, read availability, and finalize meetings on behalf of users.
How does agent authentication work?
Agents use a device-claim flow: start an installation, have the organizer claim it in their browser, then exchange a device secret for a Bearer token. All tokens are HMAC-SHA256 hashed at rest.
What tools are available?
16 MCP tools across poll management (create, vote, context, list, invite, suggest slots), calendar operations (freebusy, create/update/cancel events, finalize), and webhooks (register, list, delete).
Is there a guest mode for agents?
Yes. Agents can use a subset of tools (create_poll, vote_poll, poll.context, suggest_slots) without authentication, subject to IP-based rate limits of 60 requests per minute.
Account & Data
What data does CommonTime store?
We store poll metadata (title, dates, settings), participant names and availability selections, and Google Calendar OAuth tokens (encrypted with AES-256-GCM) for organizers who connect calendars.
Can I delete my data?
Yes. Organizers can request full account deletion through the account settings page. This removes all polls, participant data, calendar connections, and agent installations associated with the account.
Can I export my data?
Yes. Organizers can download a full export of their data (polls, participants, calendar connections) in JSON format from the account settings.
Is my data encrypted?
OAuth tokens are encrypted at rest with AES-256-GCM using scrypt-derived keys. Edit tokens are hashed with SHA-256. Agent tokens use HMAC-SHA256. All data in transit is encrypted via TLS.
Contact Us
How do I reach the CommonTime team?
Email us at support@commontime.cc or use the contact form at /contact. We aim to respond within 48 hours.
I found a bug. Where do I report it?
Use the feedback button (bottom-right corner on any page) to report bugs, or email support@commontime.cc with details about what happened and what you expected.
I have a feature request.
We love hearing ideas. Use the feedback button and select "improvement" as the category, or email support@commontime.cc.
We use cookies to improve CommonTime. No advertising cookies, no third-party tracking. Privacy Policy