Developers

One API. Every country's invoicing rules.

Send InvoNexa a single document and we handle validation, signing, reporting and delivery for the destination country.

Get startedAPI reference

Sandbox only — demo API

The model

Documents in, receipts out.

Three ideas are all you need to reason about an integration.

  1. 01

    Document

    Your invoice data in one neutral JSON shape, whatever the source system looks like.

  2. 02

    Workflow

    A chain of steps for the destination country: validate, sign, report, deliver.

  3. 03

    Receipt

    A final status and an archived, tamper-evident copy you can fetch any time.

Integrate

Choose your way to integrate.

Start with whichever fits your team. You can mix all three later.

  • For engineers

    API

    Send a JSON document, get a compliant invoice back. Full control over the request, retries and webhooks.

    Open the API reference →

  • For ops teams

    No-code workflows

    Chain validation, signing and reporting steps visually, then trigger them from a form, a file drop or a schedule.

    Read about workflows →

  • For existing stacks

    Connectors

    Plug into the ERP, billing or shop software you already run. Mapping and credentials are handled for you.

    Browse connectors →

Quick look

Your first invoice in one request.

Post a document and the response tells you where it stands. Run this exact call from the live panel in the API reference.

Follow the guideRead the docs
shell
curl https://api.invonexa.example/v1/invoices \
  -H "Authorization: Bearer sk_sandbox_..." \
  -H "Content-Type: application/json" \
  -d '{
    "country": "ES",
    "customer": "Acme S.L.",
    "total": 1210.00,
    "currency": "EUR"
  }'