110b+

Transactions

1250 tx/s

Peak Throughput

99.9%

Uptime SLA

5 live

Countries, 2 Beta

2033

BSI Cert. Valid

Trusted by industry leaders

Teams across Europe rely on fiskaly to stay compliant.

What are you building?

Pick your path and get up and running in minutes.

Integrate the API

Developer path: authenticate, sign your first transaction, and go live. Sandbox access in under 5 minutes.

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Plan a Rollout

PM path: understand which products you need, estimate integration effort, and build a compliance timeline.

Plan your rollout

Go Multi-Country

Understand the Unified API and Specialized APIs, and how to plan a rollout across multiple European countries.

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Products & Services

Explore tools for bringing your vision to life

All CountriesGermanyFranceItalyAustriaSpainPortugalSwedenBelgium

All CountriesGermanyFranceItalyAustriaSpainPortugalSwedenBelgium

Your Compliance Stack

Most integrations start with SIGN for a single country. Everything else is additive.

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SIGN

Cryptographically signs POS transactions per country regulation.

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DSFinV-K

Generates audit-ready fiscal exports for German tax audits.

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SUBMIT DE

Files ERS declarations to ELSTER electronically.

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SAFE

Archives fiscal data for 10 to 30 years per retention requirements.

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E-INVOICE

B2B and B2G electronic invoicing via the Peppol network.

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E-RECEIPT

Digital receipts replacing paper. Optional for any EU country.

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Four Steps to Compliance

Every fiskaly product follows the same pattern. Learn it once, apply it everywhere.

1

Authenticate

POST /auth with your API key and secret. Receive a Bearer token valid for 24 hours.

2

Provision Resources

Create a TSS (DE), signing unit (FR/IT/ES/AT), or taxpayer entity. One-time setup per location.

3

Sign Transactions

PUT each transaction against your signing resource. Receive a cryptographic signature in the response.

4

Export and Archive

Generate DSFinV-K exports, file via SUBMIT, and archive with SAFE. All via API.

1

Authenticate

POST /auth with your API key and secret. Receive a Bearer token valid for 24 hours.

2

Provision Resources

Create a TSS (DE), signing unit (FR/IT/ES/AT), or taxpayer entity. One-time setup per location.

3

Sign Transactions

PUT each transaction against your signing resource. Receive a cryptographic signature in the response.

4

Export and Archive

Generate DSFinV-K exports, file via SUBMIT, and archive with SAFE. All via API.

Start building

Free sandbox. No credit card required.

Ask Anything

An AI assistant trained on every page of fiskaly documentation.

fiskaly AI Assistant

How do I integrate SIGN DE into my POS system?

Start by calling POST /auth with your API key and secret to get a Bearer token. Then create a TSS (Technical Security System) via POST /tss and provision a signing unit for each of your POS registers. From there, each transaction goes through PUT /tss/{id}/tx/{txId} and you receive a signed QR code in the response. Full walkthrough in the Quickstart.

Trained on all fiskaly documentation. Open full chat

What countries does fiskaly support?

How does the Unified API differ from country-specific APIs?

Show me the TSS lifecycle

How do I plan a multi-country rollout?

What is DSFinV-K and when do I need it?

How do I get started with the sandbox?

What does SIGN do and how does signing work?

How does SAFE handle long-term archiving?

Quick Access

The pages developers and PMs reach for most.

API Reference

All endpoints, schemas, and authentication details for every fiskaly product.

View reference

Error Codes

Every error code, what causes it, and how to fix it — searchable in one place.

Browse error codes

HUB (Dashboard)

Manage organizations, API keys, and exports via the web UI.

Open HUB

From the Blog

Developer news, product updates, and what is changing in European fiscal compliance.

June 3, 2026

Manage your payment & billing at fiskaly HUB

Manage your payment method, access your invoices, and control who sees what — all in one place.

May 21, 2026

Expanding to Portugal: Simplifying Fiscalization with SIGN PT

Introducing SIGN PT — fiskaly's fiscalization API for Portugal: ATCUD, QR codes, SAF-T, and QES-ready for 2027.

March 19, 2026

Unified API Update: Enhanced Idempotency Handling

Introducing the X-Idempotency-Replayed response header — a small but powerful addition that makes it immediately clear whether a response was served from the idempotency cache or freshly processed.

View all posts

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