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C# Requires Chilkat v11.6.0+

Get the Last JSON-RPC Response from an MCP Server

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Demonstrates Mcp.GetLastJsonData, which returns the complete JSON-RPC response envelope (the jsonrpc, id, and result members) from the most recent request 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. This exposes the full protocol-level response for inspection or debugging after any MCP request.

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C#
bool success = false;

Chilkat.Mcp mcp = new Chilkat.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) {
    Debug.WriteLine(mcp.LastErrorText);
    return;
}

//  Perform an MCP request.
Chilkat.JsonObject toolsResult = new Chilkat.JsonObject();
success = mcp.ListTools(toolsResult);
if (success == false) {
    Debug.WriteLine(mcp.LastErrorText);
    return;
}

//  Get the complete JSON-RPC response envelope (the jsonrpc, id, and result members) from the most
//  recent request.
Chilkat.JsonObject json = new Chilkat.JsonObject();
mcp.GetLastJsonData(json);

json.EmitCompact = false;
Debug.WriteLine(json.Emit());
//  JSON parsing code for this result can be generated at Chilkat's online tool:
//  https://tools.chilkat.io/jsonParse