CalendarPipe

Programmable calendar sync for humans and AI agents

CalendarPipe Introduction

CalendarPipe is a programmable calendar synchronization tool that connects Google, Outlook, and Apple calendars through customizable pipes, allowing users to filter, transform, and route events using visual tools, plain English descriptions with AI, or TypeScript code. It delivers events as real email invitations without requiring recipient OAuth, making it ideal for both human users and AI agents with integrated REST API, CalDAV, and MCP server support.

Key Features

Programmable sync rules via visual builder, AI description, or TypeScript code for full event control
Syncs across Google, Outlook, and Apple calendars with invitation-based delivery, no OAuth required for recipients
AI agent integration with REST API, CalDAV, and MCP server for autonomous calendar management
Transparent pricing including a free forever plan with 2 connections and a Pro plan at $4/month for unlimited features

Use Cases

Individuals managing personal and work calendars with custom rules to prevent scheduling conflicts
Organizations avoiding OAuth security approvals by using email-based calendar synchronization
AI assistants and bots autonomously scheduling meetings and sending real invitations
Teams seeking a lightweight alternative to feature-heavy calendar tools for focused sync needs

Why Startups Use It

Startups need CalendarPipe for its cost-effective, focused calendar synchronization without feature overload, reducing complexity and expenses. Its ability to bypass OAuth restrictions helps avoid security approval hurdles, and AI agent integration supports automation in scheduling, enhancing operational efficiency for agile teams.

Alternative Options

Reclaim.ai, OneCal, Vimcal, Google Calendar

Frequently Asked Questions

How does CalendarPipe sync calendars without requiring OAuth on the recipient side?

CalendarPipe sends events as real email invitations that recipients can accept directly, bypassing the need for OAuth access and simplifying security approvals.

What is a pipe in CalendarPipe?

A pipe is a programmable function that processes calendar events, allowing users to filter, transform, block, or route them based on customizable rules for precise sync control.