# Project Talk with Krishna Singh

> Let's discuss your project, goals, and technical requirements. Start with this form here. Whether you're building a web application, SaaS product, mobile app, AI-powered platform, or need help improving an existing product, this call is an opportunity to explore your ideas and determine the best path forward. During the call, we'll discuss your requirements, timeline, technical challenges, and potential solutions. You'll leave with a clearer understanding of the project scope and next steps. To make our conversation as productive as possible, please answer the questions below when booking.

- Host: Krishna Singh
- Duration: 30 min
- Location: Google Meet
- Host time zone: Asia/Calcutta
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/krishna-singh/project-talk
- Event type id: 1548415

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=1548415&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

```http
POST https://api.cal.com/v2/bookings
cal-api-version: 2026-02-25
Content-Type: application/json

{
  "eventTypeId": 1548415,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address)
- Optional fields: `notes` (Additional notes), `guests` (Add guests)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.