---
title: Invoice Processor Worker
emoji: 🧾
colorFrom: blue
colorTo: green
sdk: gradio
sdk_version: 5.44.1
app_file: app.py
pinned: false
license: apache-2.0
---

# Invoice Processor — model worker (ZeroGPU)

Claims invoice-extraction jobs from a private Cloudflare Worker API
(`POST /internal/claim`, auth via secret), downloads the PDF, extracts structured
JSON with [LiquidAI/LFM2-1.2B-Extract](https://huggingface.co/LiquidAI/LFM2-1.2B-Extract)
on a ZeroGPU slice, and posts the result back.

This Space is public but holds no data: PDFs and results live in the owner's
Cloudflare R2/D1, and the internal API requires a secret key. The UI is a
status panel only.

## Space secrets

| Secret | Purpose |
|---|---|
| `WORKER_URL` | Cloudflare Worker base URL |
| `INTERNAL_KEY` | shared secret for the Worker's /internal/* endpoints |