Vennio

What it does

Vennio is scheduling infrastructure for developers and AI agents — the API is the product. A REST API plus an MCP server with 24 tools. Your app or agent can find availability, propose meetings, book time, and handle consent without anyone touching a calendar manually. Connect Vennio to Claude, GPT, or any MCP-compatible agent and it schedules on behalf of users in real time. Mutual scheduling, consent-scoped access, full webhook support. Not Calendly with an API bolted on.

Vennio inverts Calendly. Businesses see customer availability and propose times, instead of publishing slots. The demand-side scheduling API.

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. 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…from vennio.app

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