# Free discovery call with Sid · TechMC Advisory

> 20 minutes with Sid, free and with no obligation. How we will use it: 1. Your product (5 min): what you have today and where you're stuck. 2. Fit check (5 min): stage, quantities, timeline and budget, so we only take on projects we can deliver well. 3. Your route (7 min): how a costed bill of materials, three factory quotes and our five safeguards (NNN agreement, split sourcing, watermarked files, milestone payments, independent inspection) would apply to you. 4. Next step (3 min): a free costed BOM, a paid working session, or an honest "not yet". Please don't send confidential files before the call. A mutual NDA with us is available on request.

- Host: Sid · TechMC Advisory
- Duration: 20 min
- Location: Cal Video
- Host time zone: Asia/Kolkata
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/techmcadvisory/discovery
- Event type id: 7410917

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7410917&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": 7410917,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "stage": "…",
    "quantity": "…",
    "timeline": "…",
    "budget": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `stage` (What do you have today?), `quantity` (How many units in your first batch?), `timeline` (When do you need the first batch?), `budget` (Budget set aside for the first batch (USD))
- 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.