For the complete documentation index, see llms.txt.

How Vennio is different

The core difference

Most scheduling tools are supply-side: they publish your calendar and let people book time with you. Vennio is demand-side: it lets you schedule on behalf of others — with their explicit consent.

This isn't a UX distinction. It's an architectural one. Vennio is scheduling infrastructure for developers and AI agents that need to coordinate time across multiple parties, not just accept inbound bookings.

Demand-side vs supply-side

Supply-side scheduling (Calendly, Cal.com, etc.) works like this:

1. You connect your calendar
2. You publish a booking link
3. Someone visits the link and picks a time that works for you

Demand-side scheduling (Vennio) works like this:

1. Multiple parties connect their calendars and grant consent
2. You (or an AI agent) query mutual availability across all parties
3. You propose times, negotiate, and confirm — programmatically

Consent at the API level

Vennio treats consent as a first-class API primitive. Before any scheduling action that touches another person's calendar, that person must have granted an explicit consent token. This is enforced at the API level — not just in the UI.

This makes Vennio suitable for:

• AI agents that schedule meetings on behalf of users
• B2B platforms that coordinate time between their customers and vendors
• Enterprise tools that need GDPR-compliant calendar access

Comparison table

Feature	Vennio	Calendly	Cal.com	Cronofy
Demand-side scheduling	✓	✗	✗	✗
Consent-based booking	✓	✗	✗	✗
REST API	✓	✓	✓	✓
MCP / AI-native tools	✓	✗	✗	✗
Multi-party coordination	✓	Partial	Partial	Partial

When to use Vennio

Use Vennio when:

• You need to schedule on behalf of users, not just accept bookings for yourself
• You're building an AI agent that coordinates meetings autonomously
• You need multi-party availability — finding time when 2–5 people are all free
• You need consent management built into the scheduling layer
• You want composable primitives (availability, bookings, proposals, venn-links) rather than an opinionated SaaS product

Use a supply-side tool (Calendly, Cal.com) when you just need a booking page for yourself.