PHP Requires Chilkat v11.6.0+

Close an MCP Session

Demonstrates Mcp.Close, which explicitly terminates the MCP session by sending an HTTP DELETE with the Mcp-Session-Id header and releasing the connection.

Background. The Model Context Protocol (MCP) lets a client interact with a server's tools, resources, and prompts over a standard JSON-RPC interface. This example connects to the public, no-authentication Microsoft Learn MCP server at https://learn.microsoft.com/api/mcp over Streamable HTTP.

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Chilkat2 PHP

<?php

use Chilkat2\Mcp;

$mcp = new 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.
try {
    $mcp->Connect('https://learn.microsoft.com/api/mcp');

    // Explicitly terminate the MCP session.  This sends an HTTP DELETE with the Mcp-Session-Id header
    // and releases the connection.
    $mcp->Close();
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

echo "Session closed.\n";