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.

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

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.

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

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!

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.

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

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

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

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

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.

Python CLI portfolio demo that reconciles invoice/payment CSV/XLSX files, validates rows, classifies exceptions, and generates review reports.

This repository demonstrates how to automate the creation of sales invoices by converting dynamic HTML into PDF files with custom headers and footers using .NET (C#). It’s a practical solution for developers building invoice systems or document automation tools

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。

Portfolio project: LLM-driven agent that books supplier invoices into SAP. Deterministic Coordinator with tool-calling, DDD with four bounded contexts, Constraint Hierarchy for LLM safety, pure-Python verification, three-pillar observability. 14 ADRs. Built to demonstrate production patterns for agentic systems.

🤖 Ready-to-import n8n workflow templates for Indian SMBs — WhatsApp leads, GST invoices, Razorpay alerts, Shiprocket tracking & more. Star it if useful!

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.