Lianja Requires Chilkat v11.6.0+
Lianja
Get the Last JSON-RPC Response from an MCP Server
See more MCP Client Examples
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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llSuccess = .F.
loMcp = createobject("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.
llSuccess = loMcp.Connect("https://learn.microsoft.com/api/mcp")
if (llSuccess = .F.) then
? loMcp.LastErrorText
release loMcp
return
endif
// Perform an MCP request.
loToolsResult = createobject("CkJsonObject")
llSuccess = loMcp.ListTools(loToolsResult)
if (llSuccess = .F.) then
? loMcp.LastErrorText
release loMcp
release loToolsResult
return
endif
// Get the complete JSON-RPC response envelope (the jsonrpc, id, and result members) from the most
// recent request.
loJson = createobject("CkJsonObject")
loMcp.GetLastJsonData(loJson)
loJson.EmitCompact = .F.
? loJson.Emit()
// JSON parsing code for this result can be generated at Chilkat's online tool:
// https://tools.chilkat.io/jsonParse
release loMcp
release loToolsResult
release loJson