GST Preflight Python SDK

A dependency-free Python 3 client for the ConstaLabs GST e-invoice technical preflight API.

Download SDK 0.1.0

unzip constalabs-gst-preflight-python-0.1.0.zip
cd constalabs-gst-preflight-python-0.1.0
python3 live_smoke.py

Checksum: SHA-256

API: agent-gst-einvoice-api.constalabs.com

Technical validation and payload preparation only. This tool does not submit to the Indian IRP, generate an IRN, or provide tax advice. The included live smoke test uses synthetic data.