Is Parmana open source?
The Parmana server is not open source. The libraries your code uses are free under the Apache 2.0 license.
The Parmana server is proprietary software. You may read its source and run it to evaluate Parmana. Using it in production, copying it, or changing it needs a written agreement with Parmana Systems.
The libraries your code uses, for TypeScript and Python, are licensed under the Apache License 2.0.