# Musabbir Sagar – Cal.com booking page

> Founder of Third Bracket — web & branding agency. Book a call to discuss your project

Booking page: https://cal.com/sagarmusabbir

## Event types

- [30 min Project Consultation](https://cal.com/sagarmusabbir/30min): 30 min, requires the host’s confirmation, event type id 4761276. A video call directly with me, the founder. We’ll go through your project properly - design, branding, timeline and budget — and leave the call with a clear next step. Details: https://cal.com/sagarmusabbir/30min.md
- [15 min Discovery Call](https://cal.com/sagarmusabbir/15min): 15 min, confirmed instantly, event type id 4761275. A quick Zoom audio call - direct with me, no account managers, no middlemen. Tell me about your project and I’ll tell you honestly if we can help Details: https://cal.com/sagarmusabbir/15min.md

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=<event type id>&start=YYYY-MM-DD&end=YYYY-MM-DD&timeZone=<IANA time zone>
cal-api-version: 2024-09-04
```

The response is `{"data":{"YYYY-MM-DD":[{"start":"<ISO 8601 with offset>"}]}}`; no API key is needed.

## Book

Each event type's `.md` document lists its required booking fields and the `POST https://api.cal.com/v2/bookings` request (`cal-api-version: 2026-02-25`).

## More

- API docs: https://cal.com/docs/api-reference/v2/introduction