# Ayhan Gungor – Cal.com booking page > Partnerships, business development and product operator across AI, fintech, payments, blockchain and digital assets, and enterprise systems. 23 years, 9 in blockchain. I work both sides of cross-border flow: partner origination for payments, FX and stablecoin infrastructure companies, and provider selection and pricing for businesses moving large monthly volumes across fiat and stablecoin rails. My recent products are AI-led and AI-built: Suso (BNPL travel marketplace led by an AI travel planner), XB Bridge (AI-assisted client onboarding for cross-border payments), MySeaBase (maritime SaaS for boat operations), and enterprise systems delivered with AI coding agents. Work and background: ayhangungor.com Booking page: https://cal.com/ayhangungor ## Event types - [30 min meeting](https://cal.com/ayhangungor/30min): 30 min, confirmed instantly, event type id 6672925. An intro or a regular check-in: what you are building and where I can help. Details: https://cal.com/ayhangungor/30min.md - [45 min meeting](https://cal.com/ayhangungor/45-min): 45 min, confirmed instantly, event type id 6673219. More time for a specific product, partnership or payments question. Details: https://cal.com/ayhangungor/45-min.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