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JSON-RPC
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<p>JSON-RPC (JavaScript Object Notation-Remote Procedure Call) is a <a href="/facts/Remote_procedure_call/uMMb9CQw">remote procedure call</a> (RPC) <a href="/facts/Protocol_(computing)/5uady7cB">protocol</a> encoded in <a href="/facts/JSON/bs1rUAhd">JSON</a>. It is similar to the <a href="/facts/XML-RPC/UleaeVRo">XML-RPC</a> protocol, defining only a few data types and commands. JSON-RPC allows for notifications (data sent to the server that does not require a response) and for multiple calls to be sent to the server which may be answered asynchronously. </p>