EU VAT Invoice PDF API

A paid API that turns one JSON request into a finished, legally correct invoice or receipt PDF. EU-VAT correctness — per-line and summary calculation, per-rate and per-line rounding, reverse-charge legal notes — is built into every paid tier. Not open source, not a free tool: this is a commercial, metered product sold through API marketplaces.

Commercial — paid APIFree tier: 100/mo, watermarkedSold on API marketplaces

Getting Started

Quick Start

Send a JSON request and get an EU-VAT-correct invoice PDF back in under a minute.

Authentication

How authentication works on the marketplace model — API keys are issued and billed by the marketplace, not by ANNÁVE TECH directly.

Reference

Endpoints

The full InvoicePDF API surface: generate an invoice or receipt, check liveness, and fetch the JSON Schemas.

Invoice Schema

Every field in the invoice request JSON: which are required, which are optional, and the validation rule for each.

VAT & Currency

Tax categories, VAT calculation modes, rounding modes, supported currencies, and locale formatting.

Error Codes

Full reference for all INVOICE_ERR_* codes: HTTP status, stage, and when each is triggered.

Response Formats

Binary PDF (default) vs the ?format=json base64 envelope — how content negotiation works and what each response looks like.