Get the Last JSON-RPC Response from an MCP Server

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Demonstrates Mcp.GetLastJsonData, which returns the complete JSON-RPC response envelope (the jsonrpc, id, and result members) from the most recent request into a JsonObject.

Tip: Code to parse the returned JSON can be generated with Chilkat's online tool at https://tools.chilkat.io/jsonParse.

<?php

$success = 0;

$mcp = new COM("Chilkat.Mcp");

//  Connect to a public MCP (Model Context Protocol) server over its Streamable HTTP endpoint.  The
//  Microsoft Learn MCP server is public and requires no authentication.
$success = $mcp->Connect('https://learn.microsoft.com/api/mcp');
if ($success == 0) {
    print $mcp->LastErrorText . "\n";
    exit;
}

//  Perform an MCP request.
$toolsResult = new COM("Chilkat.JsonObject");
$success = $mcp->ListTools($toolsResult);
if ($success == 0) {
    print $mcp->LastErrorText . "\n";
    exit;
}

//  Get the complete JSON-RPC response envelope (the jsonrpc, id, and result members) from the most
//  recent request.
$json = new COM("Chilkat.JsonObject");
$mcp->GetLastJsonData($json);

$json->EmitCompact = 0;
print $json->emit() . "\n";
//  JSON parsing code for this result can be generated at Chilkat's online tool:
//  https://tools.chilkat.io/jsonParse

?>