Getting started

A REST/JSON interface on top of the számlázz.hu Számla Agent: invoices, receipts, pro forma invoices, delivery notes and tax number lookup. You call it with your own számlázz.hu Agent key, no separate API key needed.

Base URL

https://api.uptools.io/szamlazz-hu/v1

Authentication

Except for /health and /openapi.json, every endpoint expects your számlázz.hu Agent key in the X-Szamlazz-Agent-Key header. Instead of that header you can also use Authorization: Bearer <key>.

curl https://api.uptools.io/szamlazz-hu/v1/taxpayers/$TAX_NUMBER \
  -H "X-Szamlazz-Agent-Key: $SZAMLAZZ_AGENT_KEY"

Server side only

The Agent key can issue real invoices. Never put it in a browser or in client-side code: call the API from your own server.

The full reference

The machine-readable description of the endpoints, in OpenAPI 3.1 format: https://api.uptools.io/szamlazz-hu/v1/openapi.json. The version you can read in a browser: https://api.uptools.io/szamlazz-hu/v1/docs.