Panel API
A programmatic interface for placing and tracking orders without using the panel's dashboard. Most expose four endpoints and no more.
Nearly every panel runs a near-identical HTTP API — a legacy of the same handful of panel scripts the whole market is built on.
In practice you get: place an order, check an order's status, list services, and check your balance. That is usually the whole surface.
The first thing to break is rate limiting, and it is almost never documented. The second is status reporting, which frequently claims completion before delivery has finished. If you are building on a panel API, measure the delivery yourself rather than trusting the status field.