Calendaria: Unify Your Calendars with Natural Language

Overview

Calendaria is an AI-powered calendar assistant designed to unify work and personal calendars across multiple platforms. It transforms natural language commands into confirmed calendar actions, allowing users to schedule, reschedule, and find free time without navigating complex forms. The tool supports multiple languages and integrates seamlessly into communication channels where users already type.

How It Works

Calendaria operates on a simple three-step process:

1. Connect: Users link their calendars (such as Google Calendar and Outlook) via OAuth. The service uses encrypted tokens at rest and never requests passwords.
2. Type: Users interact using natural language commands. Examples include "What's on Friday?", "Move my 3pm to 4pm," or "Find 90 minutes this week."
3. Confirm: Every change is displayed to the user before execution. Nothing is added to the calendar without explicit approval.

Key Features

Natural Language Processing

Calendaria understands time, attendees, and context in various languages, including English, Spanish, Portuguese, French, German, and Italian. Users can mix languages within the same conversation, and the assistant replies in the language used.

Smart Scheduling

• Find Time Instantly: Users can ask for specific durations and time slots (e.g., "Where can I fit 90 minutes this week, mornings only?") and receive options to select with one tap.
• Daily Briefing: Provides a clean snapshot of the day every morning, flagging conflicts and surfacing free blocks.
• Focus-Time Coach: Identifies open blocks and offers to protect them for deep work.

Automation and Collaboration

• Reschedule & Invite: Users can move events and add attendees in a single sentence (e.g., "Move the review to Thursday and add María").
• Booking Links: Generates Calendly-style links allowing others to pick free slots, which book directly onto the user's calendar.
• Group Invites: Users can share a link to collect RSVPs and set guest caps for events.

Security and Privacy

• Private by Default: Access is OAuth-only, with provider tokens encrypted at rest.
• Data Protection: Calendaria never sells user data or uses it to train general-purpose AI models. Users can disconnect calendars anytime, and the service deletes the encrypted token copy for that connection.
• Fair-Use Policy: The Personal plan includes a daily anti-abuse guard. If fair use is exceeded, the service notifies the user rather than silently degrading AI quality.

Availability and Channels

Calendaria is available across multiple platforms, allowing users to manage their schedule from wherever they type:*Web App: Accessible via browser at calendaria.co.*Telegram: Chat via text or voice notes.*WhatsApp: Chat directly on WhatsApp.*MCP Integration: Compatible with AI clients like Claude and ChatGPT.*Cross-Platform Support: Works on iPhone, Android, Mac, Windows, and the browser.

Pricing

Calendaria offers a straightforward pricing model for individual users:*Personal Plan: $10/month.*Trial: Includes a 7-day free trial.*Terms: Cancel anytime. The plan covers unlimited everyday use under a fair-use policy.

Frequently Asked Questions

What is Calendaria?It is an AI calendar assistant that plugs into existing calendars (Google Calendar, Outlook) to handle agenda summaries, scheduling, and rescheduling via chat.

Does it change my calendar automatically?No. Read-only requests run immediately, but creating, moving, cancelling, or editing events requires explicit confirmation.

Which calendars does it support?Currently, it works with Google Calendar and Outlook. Multiple accounts from both providers can be connected simultaneously.

Is there a free version?There is no permanent free version at launch, but a 7-day free trial of the Personal plan is available.

How safe is my data?Connections use OAuth, tokens are encrypted at rest, and data is not sold or used for general AI training. Users retain full control to disconnect and delete tokens at any time.