Java 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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Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    CkMcp 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.
    success = mcp.Connect("https://learn.microsoft.com/api/mcp");
    if (success == false) {
        System.out.println(mcp.lastErrorText());
        return;
        }

    //  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.
    CkJsonObject json = new CkJsonObject();
    success = mcp.ListPrompts(json);
    if (success == false) {
        System.out.println(mcp.lastErrorText());
        return;
        }

    json.put_EmitCompact(false);
    System.out.println(json.emit());
    //  JSON parsing code for this result can be generated at Chilkat's online tool:
    //  https://tools.chilkat.io/jsonParse
  }
}