JavaScript Requires Chilkat v11.6.0+
JavaScript
Connect to an MCP Server
See more MCP Client Examples
Demonstrates Mcp.Connect, which connects to an MCP server at its Streamable HTTP endpoint URL. After connecting, the server's identifying properties are available.
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.
Note
This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat
v11.4.0 or greater.
var success = false;
var 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) {
console.log(mcp.LastErrorText);
return;
}
// After connecting, the server's identifying information is available.
console.log("Connected to " + mcp.ServerName + " " + mcp.ServerVersion);
console.log("Protocol version: " + mcp.ProtocolVersion);
success = mcp.Close();
if (success == false) {
console.log(mcp.LastErrorText);
return;
}