Infrastructure for Time
A scheduling API for developers and businesses. Vennio integrates with Google Calendar and Microsoft 365 to check availability, propose times, and create events — with explicit user consent.
Get StartedWhat this app does.
Vennio is scheduling infrastructure used by developers and businesses to add
calendar functionality to their applications. After a user grants access through
Google's standard OAuth consent screen, Vennio can read their calendar
availability and create new events on their behalf. Vennio requests only the
minimum scopes needed for these functions —
calendar.events and calendar.calendarlist.readonly —
and users can revoke access at any time from their
Google Account permissions page.
Vennio does not sell user data, does not use calendar data for advertising, and does not share data with third parties beyond what is required to deliver the requested scheduling function.
Scheduling infrastructure for developers.
A single API that reads, writes, and coordinates across every calendar — Google, Microsoft, Salesforce, HubSpot.
Stripe abstracted payments. Vennio abstracts time.
Connect calendars
Google Calendar, Microsoft 365. OAuth consent flow. Bidirectional sync.
Query availability
Real availability across any connected calendar. Multiple people, multiple time zones.
Propose and book
Propose the right time. Get consent. Confirm the booking.