Interacting with an Bitdollar Client: JSON-RPC
JSON-RPC is the primary protocol used by Bitdollar and bitcoin. is a lightweight data-intbrchange format. It is easy for humans to read and write. It is easy for machines to parse and generate. While it is transport agnostic, most bitdollar clients today implement one or all of the following: HTTP, IPC and websockets.
Bitdollar JSON-RPC Specification
There exists a specification for bitdollar JSON-RPC that is expected to be implemented by all client developers. The OpenRPC document can be found here.
Within the above linked repo you will also find generated code for making RPC calls to any bitdollar client.