A source-available invoice, quote, project and time-tracking app built with Laravel
the fastest invoicing layer on the internet
phase4 - AS4 client and server for integration into existing systems. Specific support for Peppol and CEF eDelivery built-in.
Java library for reading and writing UBL 2.0, 2.1, 2.2, 2.3, 2.4 and 2.5 documents
A generic Java AS2 library, servlet and server
API REST open source NestJS para facturacion electronica Ecuador SRI. Facturas, NC, ND, Retenciones, Guias de Remision. Firma XAdES-BES, Multi-tenant, BullMQ, Docker.
A Node.js library for creating ZUGFeRD/Factur-X compliant documents. Generating XML and embedding it into PDF/A files, enabling seamless e-invoicing and digital document compliance.
Oxalis-NG (Oxalis - Next Generation) - Open-Source implementation of OpenPeppol AS4 profile
Advanced modules for the SILE typesetting system: A path for making books from front cover to back cover, invoices, and more, using lightweight markup.
A JavaScript library for creating and parsing electronic invoices compliant with the eInvoicing Directive, EN 16931, and popular extensions
ebInterface development repository for XSD and XSLT artifacts
Scribo — free, AI-native EN 16931-compliant e-invoicing. ZUGFeRD/XRechnung (Germany) and US plain PDF live; Factur-X, Facturae, Peppol BIS UBL coming soon. Available as MCP server, Claude/Codex skill, CLI, HTTP API, and web app.
Scribo MCP server — generate EN 16931-compliant e-invoices (ZUGFeRD, XRechnung, US plain PDF; Factur-X, Facturae, Peppol coming soon) from Claude, Cursor, Cline, ChatGPT & any MCP client. Free, hosted, no signup. Registry metadata, schemas & examples.
Scribo Claude/Codex skill — generate EN 16931-compliant e-invoices (ZUGFeRD, XRechnung, US plain PDF; Factur-X, Facturae, Peppol BIS UBL coming soon) via the public Scribo HTTP API
Scribo CLI — the official npm package for generating EN 16931-compliant e-invoices (ZUGFeRD, XRechnung, plain US PDF) from the terminal and CI. Install: npm i -g @causaprima/scribo-cli
Scribo public HTTP API — documentation. Free EN 16931-compliant e-invoicing API (ZUGFeRD, XRechnung, US plain PDF; Factur-X, Facturae, Peppol BIS UBL coming soon).
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