DataFlex 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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DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoMcp
    String sTemp1

    Move False To iSuccess

    Get Create (RefClass(cComChilkatMcp)) To hoMcp
    If (Not(IsComObjectCreated(hoMcp))) Begin
        Send CreateComObject of hoMcp
    End

    //  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.
    Get ComConnect Of hoMcp "https://learn.microsoft.com/api/mcp" To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoMcp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    //  Explicitly terminate the MCP session.  This sends an HTTP DELETE with the Mcp-Session-Id header
    //  and releases the connection.
    Get ComClose Of hoMcp To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoMcp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Showln "Session closed."


End_Procedure