# Cal.com — Open-Source Scheduling Infrastructure

> The open Calendly alternative. Embed scheduling in any app with APIs and webhooks. Self-hostable. 40K+ GitHub stars.

## Install

Save in your project root:

# Cal.com — Open-Source Scheduling Infrastructure

## Quick Use

```bash
git clone https://github.com/calcom/cal.com.git
cd cal.com
npm install
npx turbo dev
```

Or use Docker:
```bash
docker pull calcom/cal.com
docker run -p 3000:3000 calcom/cal.com
```

Open `http://localhost:3000` — your scheduling platform is ready.

Embed in any app:
```html
<script src="https://cal.com/embed.js"></script>
<cal-inline calLink="username/30min"></cal-inline>
```

---

## Intro

Cal.com is the leading open-source scheduling platform with 40,900+ GitHub stars — the Calendly alternative you can self-host and customize. It provides booking pages, team scheduling, round-robin assignment, recurring events, and a full API for embedding scheduling into any application. For AI products, Cal.com powers demo booking, support scheduling, and automated appointment management. With 200+ integrations (Google Calendar, Outlook, Zoom, Stripe), webhooks, and a REST API, it's scheduling infrastructure for developers.

Works with: Google Calendar, Outlook, Zoom, Google Meet, Stripe, Zapier, any webhook consumer. Best for SaaS products and AI tools that need embedded scheduling. Setup time: under 5 minutes with Docker.

---

## Cal.com Features

### Booking Pages

- Individual and team booking links
- Round-robin assignment across team members
- Collective scheduling (find time that works for everyone)
- Buffer time between meetings
- Minimum notice period
- Daily/weekly booking limits

### Embed Options

```javascript
// Inline embed
import Cal from "@calcom/embed-react";
<Cal calLink="team/sales-demo" style={{ width: '100%', height: '600px' }} />

// Popup embed
<button data-cal-link="team/sales-demo">Book a Demo</button>

// Floating button
Cal("floatingButton", { calLink: "team/sales-demo" });
```

### API & Webhooks

```bash
# List available slots
curl https://api.cal.com/v1/slots/available?apiKey=... \
  &eventTypeId=123&startTime=2026-04-10&endTime=2026-04-17

# Create a booking
curl -X POST https://api.cal.com/v1/bookings?apiKey=... \
  -d '{"eventTypeId": 123, "start": "2026-04-10T10:00:00Z", "name": "John", "email": "john@example.com"}'
```

Webhooks for:
- Booking created/cancelled/rescheduled
- Meeting started/ended
- Custom triggers

### AI Use Cases

| Use Case | Implementation |
|----------|---------------|
| **Demo booking** | Embed Cal on your AI product landing page |
| **Support scheduling** | Let users book AI-assisted support calls |
| **Agent scheduling** | AI agent books meetings on behalf of users |
| **Interview scheduling** | Automated candidate scheduling |

### 200+ Integrations

Calendars: Google, Outlook, Apple. Video: Zoom, Google Meet, Teams. Payments: Stripe. Automation: Zapier, Make, n8n.

---

## FAQ

**Q: What is Cal.com?**
A: Cal.com is the leading open-source scheduling platform with 40,900+ GitHub stars. Self-hostable Calendly alternative with API, embeds, team scheduling, and 200+ integrations.

**Q: Why use Cal.com for AI products?**
A: AI products need demo booking, support scheduling, and automated appointments. Cal.com provides embeddable scheduling with a full API that AI agents can use to manage calendars.

**Q: Is Cal.com free?**
A: Open-source under AGPL-3.0. Self-host for free. Cal.com Cloud has a free tier for individuals.

---

## Source & Thanks

> Created by [Cal.com](https://github.com/calcom). Licensed under AGPL-3.0.
>
> [cal.com](https://github.com/calcom/cal.com) — ⭐ 40,900+

---

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## 快速使用

```bash
docker pull calcom/cal.com
docker run -p 3000:3000 calcom/cal.com
```

---

## 简介

Cal.com 是拥有 40,900+ GitHub stars 的开源日程调度平台，Calendly 的开源替代品。提供预约页面、团队调度、API、嵌入组件和 200+ 集成。

---

## 来源与感谢

> Created by [Cal.com](https://github.com/calcom). Licensed under AGPL-3.0.
>
> [cal.com](https://github.com/calcom/cal.com) — ⭐ 40,900+


---
Source: https://tokrepo.com/en/workflows/0bb26dc7-d062-455a-a33b-a4c29beff8b0
Author: AI Open Source