Delphi DLL Requires Chilkat v11.6.0+

List the Resources Offered by an MCP Server

Demonstrates Mcp.ListResources, which calls the MCP resources/list method and places the server's result (a resources 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.

Chilkat Delphi DLL Downloads

Download Chilkat for Delphi DLL

Delphi DLL

var
success: Boolean;
mcp: HCkMcp;
json: HCkJsonObject;

begin
success := False;

mcp := CkMcp_Create();

//  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 := CkMcp_Connect(mcp,'https://learn.microsoft.com/api/mcp');
if (success = False) then
  begin
    Memo1.Lines.Add(CkMcp__lastErrorText(mcp));
    Exit;
  end;

//  Call the MCP resources/list method.  On success, the server's result object -- containing a
//  "resources" array -- is placed in the JsonObject.  Not all servers expose resources.
json := CkJsonObject_Create();
success := CkMcp_ListResources(mcp,json);
if (success = False) then
  begin
    Memo1.Lines.Add(CkMcp__lastErrorText(mcp));
    Exit;
  end;

CkJsonObject_putEmitCompact(json,False);
Memo1.Lines.Add(CkJsonObject__emit(json));
//  JSON parsing code for this result can be generated at Chilkat's online tool:
//  https://tools.chilkat.io/jsonParse

CkMcp_Dispose(mcp);
CkJsonObject_Dispose(json);