October 2025
Intermediate to advanced
304 pages
5h 36m
English
The MCP consists of many parts. In short, JavaScript Object Notation-Remote Procedure Call (JSON-RPC) messages are exchanged between the client and the server. A JSON-RPC message is a message following the JSON-RPC specification, which means it has the jsonrpc, id, method, and params fields, and the data type is JSON. An example could look like so:
{
"jsonrpc": "2.0",
"id": 1,
"method": "doSomething",
"params": {
"foo": "bar"
}
}
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