# Build with Me - Intro Call with Ryan Colgin

> Have an idea for an app, tool, website, business workflow, or digital project and not sure where to start? This is a short intro call to talk through what you’re thinking about, see whether Build With Me is a good fit, and figure out the best next step. No prep required.

- Host: Ryan Colgin
- Duration: 30 min
- Location: Cal Video
- Host time zone: America/Chicago
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/ryan-colgin/build-with-me-intro
- Event type id: 6934690

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=6934690&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": 6934690,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "bookingFieldsResponses": {
    "What-are-you-thinking-about-building": "…",
    "What-would-you-like-help-figuring-out": "…",
    "smsReminderNumber": "…",
    "Relevant-link-or-example": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `What-are-you-thinking-about-building` (What are you thinking about building?), `What-would-you-like-help-figuring-out` (What would you like help figuring out?)
- Optional fields: `smsReminderNumber` (Phone number (Text notifications)), `Relevant-link-or-example` (Relevant link or example), `notes` (Anything else I should know?)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.