# Velossalabs – Cal.com booking page > A digital product studio** We build premium web experiences, SaaS products, and brand systems for founders, startups, and scaling companies. We don't just design or develop: we think in systems. Every engagement pairs design, engineering, and strategy, so you move fast without cutting corners. In this call, we'll cover:** What you're building, and where you're stuck Whether we're the right fit for your goals How we typically engage, and what timelines look like 30 minutes. No pitch, no pressure. Just an honest conversation. Booking page: https://cal.com/velossalabs ## Event types - [30 min meeting](https://cal.com/velossalabs/30min): 30 min, confirmed instantly, event type id 5736409. Details: https://cal.com/velossalabs/30min.md - [15 min meeting](https://cal.com/velossalabs/15min): 15 min, confirmed instantly, event type id 5736408. To make the most of it, come with: A short description of what you're building — a deck, one-pager, or a few sentences is fine Your current stage: idea, early product, or scaling something that already exists Any live links you can share: current site, product, or Figma file A rough sense of budget range and target timeline Who else is involved in the decision, if it's not just you Details: https://cal.com/velossalabs/15min.md ## Check availability ```http GET https://api.cal.com/v2/slots?eventTypeId=&start=YYYY-MM-DD&end=YYYY-MM-DD&timeZone= cal-api-version: 2024-09-04 ``` The response is `{"data":{"YYYY-MM-DD":[{"start":""}]}}`; 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