B4X Requires Chilkat v11.6.0+

Connect to an MCP Server

Demonstrates Mcp.Connect, which connects to an MCP server at its Streamable HTTP endpoint URL. After connecting, the server's identifying properties are available.

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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Dim success As Boolean = False

Dim mcp As ChilkatMcp
mcp.Initialize("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 = False Then
    Log(mcp.LastErrorText)
    Return
End If


'  After connecting, the server's identifying information is available.
Log("Connected to " & mcp.ServerName & " " & mcp.ServerVersion)
Log("Protocol version: " & mcp.ProtocolVersion)

success = mcp.Close
If success = False Then
    Log(mcp.LastErrorText)
    Return
End If