# RealESALetter.com – Cal.com booking page

> RealESALetter.com is the #1 Ranked Emotional Support Animal letter provider.

An ESA Letter from a licensed therapist at RealESAletter.com is your only guarantee that your document will meet the rigorous requirements for legitimate emotional support animal documentation.

Our Legally Certified Process

Getting a legitimate, legally enforceable Emotional Support Animal Letter is simple.

1- Submit your free qualification screening questionnaire.
2- When you qualify (the majority of our clients do), we will put you in touch with one of our licensed professionals.
3- Confirm your order.
4- Receive your digital ESA Letter within 24 hours; receive your hard copy at your address within 3 days.

Booking page: https://cal.com/realesaletter

## Event types

- [15 Min Meeting](https://cal.com/realesaletter/15min): 15 min, confirmed instantly, event type id 4126244. Details: https://cal.com/realesaletter/15min.md
- [30 Min Meeting](https://cal.com/realesaletter/30min): 30 min, confirmed instantly, event type id 4126243. Details: https://cal.com/realesaletter/30min.md

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=<event type id>&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

Each event type's `.md` document lists its required booking fields and the `POST https://api.cal.com/v2/bookings` request (`cal-api-version: 2026-02-25`).

## More

- API docs: https://cal.com/docs/api-reference/v2/introduction