Delphi ActiveX 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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var
success: Integer;
mcp: TChilkatMcp;

begin
success := 0;

mcp := TChilkatMcp.Create(Self);

//  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) then
  begin
    Memo1.Lines.Add(mcp.LastErrorText);
    Exit;
  end;

//  Explicitly terminate the MCP session.  This sends an HTTP DELETE with the Mcp-Session-Id header
//  and releases the connection.
success := mcp.Close();
if (success = 0) then
  begin
    Memo1.Lines.Add(mcp.LastErrorText);
    Exit;
  end;
Memo1.Lines.Add('Session closed.');