Invoice generator integrations

One free invoice API, everywhere you work. Generate PDF, JSON and UBL 2.1 invoices from your automation tools, your code, or your AI agent — in 11 languages.

Quick answer

Invovate connects to your stack three ways: a free REST API (JSON in → PDF/JSON/UBL out), an official MCP server for AI agents, and ready-made connectors for n8n, WordPress, Google Sheets, Pipedream, Zapier and Make.

API
POST /api/generate-invoice · free tier, no card
AI agents
MCP server · ChatGPT/Claude Actions
No-code
n8n · WordPress · Google Sheets · Pipedream · Zapier/Make
SDKs
JavaScript (invovate) · Python (invovate)
Output
PDF · JSON · UBL 2.1 · 11 languages

Choose your integration

ToolWhat it does
n8nGenerate invoices in a workflow with the n8n-nodes-invovate community node.
WordPressDrop an invoice form on any page with the [invovate_invoice_form] shortcode.
Google SheetsTurn rows into PDF invoice links from a sheet menu.
PipedreamAdd a "generate invoice" step to any Pipedream workflow.
Zapier & MakeCall the API from a Webhooks/HTTP step in any Zap or scenario.
MCP serverGive Claude Desktop, Cursor and Windsurf invoice tools.
JSON → PDF APIPOST JSON, get a PDF back — the core REST endpoint.
UBL 2.1 APIGenerate UBL 2.1 XML invoices for interoperability.

Frequently asked questions

Is the API free?

Yes — a free tier (40 requests/hour, 400/week, no credit card). JSON totals work with no account; PDF and UBL output use a free inv_ key.

Which output formats are supported?

PDF, structured JSON, and UBL 2.1 XML, in 11 languages including Arabic (RTL), Japanese, Hindi and Cyrillic.

Do I need to write code?

No — n8n, WordPress, Google Sheets, Pipedream and Zapier/Make cover the no-code path. Developers can use the REST API or the JS/Python SDKs.

Related

Not regulated e-invoicing. Invovate generates invoice documents (PDF, JSON, UBL 2.1) but is not a regulated electronic-invoice transmission service — no Peppol / Factur-X / ZUGFeRD / XRechnung / NF-e compliance or government-network delivery. UBL export is for interoperability and archival only.