invoice-automation

Open-source invoice-to-pay agent for AP automation: OCR/VLM extraction, 3-way matching, approvals, fraud checks, ERP mock posting, evals, and audit logs.

turning a manual, error-prone billing workflow into a fully automated pipeline

AI-powered LINE bot for Japanese SMEs: automated invoice processing with Freee/MoneyForward integration, PDF parsing, T-number verification, and legacy system modernization. Reduces invoice data entry from 5 minutes to 5 seconds.

Production-grade invoice automation platform — Clean Architecture, TDD, RBAC, BullMQ, Outbox pattern, OpenTelemetry, and a 5-job CI pipeline. NestJS · Next.js 15 · PostgreSQL · Redis · Gemini · Resend

A working AI agent that triages invoices end to end on LangGraph: extracts fields from raw text, validates against business rules, self-corrects, and posts to a mock ERP. Includes a held-out eval with real numbers. A winder.ai demo.

Deterministic invoice extraction using native PDF text layers. No OCR nonsense, no brittle rules that break at scale, no vendor lock-in paying exorbitant prices for creative interpretations of financial documents. This is my battle, I pick this hill!

VK BaoXiao Agent｜AI 自动报销助手：给一个发票文件夹，自动识别、分类、计算、填写报销单并导出完整报销包。

AI-powered AP automation: PDF invoice → extraction → validation → Slack approval → QuickBooks, built on n8n. Reference implementation.

A Python-based NLP tool that classifies invoice descriptions into predefined categories such as Rent, Utilities, Equipment, or Vendor Payments.

Autonomous AP agent + DOCX standardization. GPT-4o invoice extraction, three-way matching, approval routing, ERP sync, and AI-powered Word document normalization. Zero manual data entry.

Notion automation system with Make.com integration for client project management and automated invoice processing. 4-database architecture with intelligent workflows.

Your AI Automation Partner

Browser automation for QuickBooks Desktop Online/Enterprise — automate invoice creation, payment processing, report extraction, and accounting workflows without the QuickBooks SDK.

UX/UI case study — invoice automation for enterprise logistics: dashboard, smart invoice generation, and automated payment reconciliation.

Professional Open Source E-Invoicing System for PHP (Yii3) with UBL 2.4 and Peppol support

Local-first Windows invoice and receipt email archiver with IMAP, Gmail API, OCR, PDF conversion, and DATEV-style CSV export

Comstruct is a Munich-based construction technology company that provides AI-powered agents to automate the procurement of construction materials. Its platform runs the full procurement workflow from the bill of materials (Leistungsverzeichnis) through supplier inquiry, offer comparison, contract negotiation, digital delivery notes, AI-based…

AI-powered invoice processing and accounts payable automation using n8n, OpenAI, Google Sheets, and Gmail with risk scoring, duplicate detection, and automated reporting.

Flow-Like WASM nodes for German and EU e-invoicing: read, write, validate, transform, and archive XRechnung, ZUGFeRD, Factur-X, and EN 16931 invoices.