Tcl Requires Chilkat v11.6.0+

List the Prompts Offered by an MCP Server

Demonstrates Mcp.ListPrompts, which calls the MCP prompts/list method and places the server's result (a prompts array) into a JsonObject.

Tip: Code to parse the returned JSON can be generated with Chilkat's online tool at https://tools.chilkat.io/jsonParse.

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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Tcl


load ./chilkat.dll

set success 0

set mcp [new_CkMcp]

#  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.
set success [CkMcp_Connect $mcp "https://learn.microsoft.com/api/mcp"]
if {$success == 0} then {
    puts [CkMcp_lastErrorText $mcp]
    delete_CkMcp $mcp
    exit
}

#  Call the MCP prompts/list method.  On success, the server's result object -- containing a
#  "prompts" array -- is placed in the JsonObject.  Not all servers expose prompts.
set json [new_CkJsonObject]

set success [CkMcp_ListPrompts $mcp $json]
if {$success == 0} then {
    puts [CkMcp_lastErrorText $mcp]
    delete_CkMcp $mcp
    delete_CkJsonObject $json
    exit
}

CkJsonObject_put_EmitCompact $json 0
puts [CkJsonObject_emit $json]
#  JSON parsing code for this result can be generated at Chilkat's online tool:
#  https://tools.chilkat.io/jsonParse

delete_CkMcp $mcp
delete_CkJsonObject $json