# Maths Mastery Group Session with FixMyMaths

> Designed for ambitious students who want to build confidence, master mathematical thinking and maximise their GCSE potential. Whether catching up or aiming for Grade 9, every session is limited to just four students to provide personalised support and challenge.

- Host: FixMyMaths
- Duration: 45 min
- Location: Cal Video
- Host time zone: Europe/London
- Confirmation: Bookings are confirmed instantly.
- Payment: required, and collected on the booking page.
- Booking page: https://cal.com/fix-my-maths-vpwsqw/maths-mastery-group-session
- Event type id: 6194842

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=6194842&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": 6194842,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "bookingFieldsResponses": {
    "title": "…",
    "notes": "…"
  }
}
```

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