title	description	section	sectionOrder	order
fin.cx financial infrastructure	Version-pinned documentation for the fin.cx accounting, banking, invoice, document, and public-data packages.	Overview	10	1

fin.cx financial infrastructure

fin.cx publishes focused TypeScript packages for exact financial arithmetic, German bookkeeping, bank statement ingestion, reconciliation, electronic invoices, tax preparation, year-end statements, document management, and selected public datasets.

Issue Reporting and Security

For reporting bugs, issues, or security vulnerabilities, please visit community.foss.global/. This is the central community hub for all issue reporting. Developers who sign and comply with our contribution agreement and go through identification can also get a code.foss.global/ account to submit Pull Requests directly.

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Package areas

Area	Packages	Purpose
Banking	`camt`, `mt940`, `csvparser`, `bankrec`	Parse statements, normalize transactions, check continuity, and propose matches
Accounting	`calculation`, `chartdata`, `skr`, `assets`	Exact arithmetic, chart mappings, immutable journals, and asset schedules
Tax and year-end	`tax`, `jahresabschluss`, `elster`	Compute UStVA figures, build HGB statements, and establish an experimental ERiC boundary
Documents	`einvoice`, `docbox`	Read and write electronic invoice data and operate a self-hosted document application
Data	`opendata`, `fee-schedules`, `openwarning`, `portablefinance`	Public-data workflows, fee catalogs, warning feeds, and legacy shared interfaces

Documentation contract

The site distinguishes published packages, tagged source, and unreleased worktrees. A package page states its exact version, source revision, npm integrity when available, installability, and operational limits. Dirty worktree features are never presented as released APIs.

The package set is useful infrastructure, not a certification claim. DATEV acceptance, ERiC filing, E-Bilanz taxonomy coverage, PDF/A-3 conformance, official e-invoice profile validation, and legal or tax judgment require their own external evidence. See Compliance boundaries.

License and Legal Information

This repository contains open-source code licensed under the MIT License. A copy of the license can be found in the repository license file.

Please note: The MIT License does not grant permission to use the trade names, trademarks, service marks, or product names of the project, except as required for reasonable and customary use in describing the origin of the work and reproducing the content of the NOTICE file.

Trademarks

This project is owned and maintained by Task Venture Capital GmbH. The names and logos associated with Task Venture Capital GmbH and any related products or services are trademarks of Task Venture Capital GmbH or third parties, and are not included within the scope of the MIT license granted herein.

Use of these trademarks must comply with Task Venture Capital GmbH's Trademark Guidelines or the guidelines of the respective third-party owners, and any usage must be approved in writing. Third-party trademarks used herein are the property of their respective owners and used only in a descriptive manner, e.g. for an implementation of an API or similar.

readme.md