curl --request POST \
  --url https://api.klavis.ai/mcp-server/call-tool \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "serverUrl": "<string>",
  "toolName": "<string>",
  "toolArgs": {},
  "connectionType": "StreamableHttp",
  "headers": {}
}
'

{
  "success": true,
  "result": {
    "content": [
      "<unknown>"
    ],
    "isError": false
  },
  "error": "<string>"
}