@HostAddress = http://localhost:3001

POST {{HostAddress}}/
Accept: application/json, text/event-stream
Content-Type: application/json
MCP-Protocol-Version: 2025-11-25

{
    "jsonrpc": "2.0",
    "id": 2,
    "method": "tools/call",
    "params": {
        "_meta": {
        "progressToken": "abc123"
        },
        "name": "long_running_tool"
    }
}