# CMO Advisory · £950 · 90 minutes with Robert Bloxham

> Ninety minutes on your agency roster and how you buy. Which relationships are genuinely load-bearing, which are replaceable, and what you should be asking for that you currently are not. Written up and sent within two days. Twenty years of sitting on the other side of that table. Four a month. No VAT. Free rescheduling up to 48 hours before.

- Host: Robert Bloxham
- Duration: 90 min
- Location: Cal Video
- Host time zone: Europe/London
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/robert-bloxham-8izhus/cmo-advisory
- Event type id: 7252106

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7252106&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": 7252106,
  "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.