Zyntem

Zyntem handles European fiscalization -- signing, hash-chaining, submission, and compliance -- so you don't have to. One integration covers every supported country.

Two Ways to Integrate

	Cloud API	Embedded Local
How it works	Your app calls api.zyntem.com over HTTPS	A native library runs inside your app
Offline support	No	Yes -- transactions are signed locally, queued for submission
Best for	Web apps, SaaS platforms, cloud backends	On-premise POS, tablets, kiosks
Latency	~100-300 ms	~1-5 ms

Not sure which to pick? See the SDK Overview for a decision flowchart and common scenarios. You can use both under the same account.

What Zyntem Provides

• Transaction fiscalization -- Sign and submit invoices; never blocks the cash register
• Account & location management -- Register merchants with country-specific fiscal configurations
• Certificate management -- Upload and manage PKCS#12 signing certificates
• Webhook notifications -- Real-time events for fiscalization outcomes
• Automatic retries -- Exponential backoff for failed submissions (Cloud API and Embedded queue)
• Multi-country compliance -- Spain (TicketBAI, Verifactu, SII), Italy (FatturaPA / SDI, Documento Commerciale), France (NF525), Portugal (SAF-T PT, ATCUD)

Supported Countries

Country	Status	Systems
France (FR)	Supported	NF525
Italy (IT)	Supported	FatturaPA / SDI, Documento Commerciale
Portugal (PT)	Supported	SAF-T PT, ATCUD
Spain (ES)	Supported	TicketBAI, Verifactu, SII

Getting Started

Cloud API -- HTTP calls, no native dependencies:

1. Create an account to get your API key
2. Create a location for your merchant
3. Submit a transaction for fiscalization

Embedded Local -- native library, offline-capable:

1. Install the SDK for your platform (Python, .NET, Android, iOS, WASM, C)
2. Configure your country and credentials
3. Call processTransaction() -- signing, chaining, and submission happen automatically

Ready to start? Head to the Cloud API Quickstart or the SDK Quickstart.