Visual Basic 6.0 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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Visual Basic 6.0

Dim success As Long
success = 0

Dim mcp As New ChilkatMcp

'  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
    Debug.Print mcp.LastErrorText
    Exit Sub
End If

'  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
    Debug.Print mcp.LastErrorText
    Exit Sub
End If

Debug.Print "Session closed."