pick between rezdy's agent api and supplier api based on who owns the product inventory

Steps

1. review the rezdy developer portal landing page, which lists four distinct api surfaces: Agent API, Supplier API, RezdyConnect, and Webhooks
2. use the Agent API if you are a reseller/OTA that does not own the product — it lets you pull products a supplier has explicitly shared with your account via GET /products/marketplace, check that shared inventory's availability, and push bookings/cancellations back to rezdy
3. use the Supplier API if you are the tour operator managing your own rezdy inventory — it lets you query and manage your own availability, products, and bookings directly
4. note a single rezdy account can hold both roles at once (a supplier can also act as an agent reselling other suppliers' shared products), so check which key/role you're authenticating as
5. if you run your own separate booking system and want rezdy's reseller channels to sell your inventory instead, use RezdyConnect — the inverse integration model where rezdy calls into your system to pull availability/pricing and push bookings, rather than you calling rezdy