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Last updated · July 26, 2026

Terms of Service

These Terms of Service ("Terms") govern your use of the Beliq service ("Service"), operated by Tobias Satzger, a sole proprietor based in Germany ("we", "us", "our"). Our Acceptable Use Policy is incorporated into these Terms by reference. By creating an account or using our Service, you agree to be bound by these Terms. If you do not agree, do not use the Service.

Beliq accounts and paid plans are for businesses only. By registering, you confirm that you are acting as an entrepreneur (Unternehmer within the meaning of Section 14 BGB), whether as a company, an organization, or a self-employed professional, and not as a consumer. The free tools on our public website (the invoice generator and the API playground) are open to everyone without an account and without concluding a contract.

1. Definitions

  • "Service" refers to the Beliq e-invoicing API, the dashboard (dashboard.beliq.eu), the website (beliq.eu), documentation (docs.beliq.eu), and all related tools and infrastructure.
  • "User" or "you" refers to any individual or entity that registers for and uses the Service.
  • "API" refers to the programmatic interface for submitting invoice generation, validation, parsing, and conversion requests.
  • "Request" refers to a single API call to any /v1/ endpoint.
  • "Content" refers to any data, JSON, XML, PDF files, or other material submitted by the User to the Service.

2. Account Registration

2.1 Eligibility

You may register for an account only as a business (Unternehmer, Section 14 BGB): a company, an organization, or a self-employed professional acting in the course of a trade, business, or profession. By registering, you represent that you are acting in that capacity and not as a consumer, and that you are authorized to enter into these Terms on behalf of the business you represent.

2.2 Account Creation

You may create an account using your email address and a password, or by authenticating through a supported OAuth provider (Google, GitHub, or Microsoft). You agree to provide accurate information and to keep your credentials secure.

2.3 Account Security

You are responsible for all activity that occurs under your account. You must notify us immediately at hello@beliq.eu if you suspect unauthorized use. We are not liable for losses arising from unauthorized use of your account where you have failed to safeguard your credentials.

3. Service Description

3.1 Core Functionality

Beliq provides a REST API for generating, validating, parsing, and converting EN 16931 compliant electronic invoices. Eight formats are part of the Service, in two verification tiers matching the public coverage page: XRechnung (UBL and CII), Factur-X, ZUGFeRD 2.x, Peppol BIS Billing 3.0 (UBL), and the Netherlands NLCIUS overlay are Authority-checked (validated against the format authority's own published rulebook, pinned by version and hash); Italy FatturaPA, Spain Facturae, and Slovenia e-SLOG are Schema-checked (validated against the official XSD schema published by the national authority — no machine-readable rulebook is published for these formats). The EN 16931 semantic core underlies all of them. The Service includes:

  • E-invoice generation in XRechnung (UBL/CII), Factur-X and ZUGFeRD 2.x (PDF/A-3), Peppol BIS Billing 3.0 (UBL), and the Netherlands NLCIUS overlay
  • Validation of all eight formats above: against official XSD schemas, EN 16931 Schematron rules, and the country- or network-specific CIUS / profile rules where applicable for the Authority-checked tier; against the official XSD schema for the Schema-checked tier (FatturaPA, Facturae, e-SLOG)
  • Parsing of UBL, CII, and Factur-X / ZUGFeRD invoices into normalized JSON
  • Conversion of invoices between supported formats
  • Webhook delivery with HMAC-SHA256 signing
  • PDF/A-3 compliance validation using VeraPDF
  • A web-based dashboard with API key management, usage analytics, and account management

3.2 Scope Limitations

The Service generates and validates electronic invoice documents only. In particular, the Service does not include:

  • Transmission of invoices over the Peppol Network. Beliq produces Peppol BIS Billing 3.0-compliant XML documents but is not a Peppol Access Point. Sending the resulting documents to recipients via Peppol or any other channel is your responsibility (or the responsibility of a third-party Access Point you engage).
  • Transmission of invoices through France's B2B reform infrastructure. Beliq produces Factur-X documents, but Beliq is not a Plateforme Agréée (PA) registered by the DGFiP, does not connect to the central public platform (PPF) or its directory, and does not operate the e-invoicing or e-reporting transmission flows. Routing the resulting documents through an approved PA and meeting the French reporting obligations remain your responsibility (or the responsibility of a partner PA you engage).
  • Submission of Italian e-invoices to the Sistema di Interscambio (SDI) or any other national interchange or clearance network. Beliq validates FatturaPA documents (Schema-checked tier, see Section 3.1) but is not an SDI operator or certified transmission intermediary. Digital signing, routing to SDI, and end-to-end compliance with Agenzia delle Entrate channel rules remain your responsibility (or that of a partner you engage).
  • Submission of Spanish e-invoices to FACe (the B2G submission portal) or through the forthcoming B2B e-invoicing channel under the Crea y Crece law. Beliq validates Facturae documents (Schema-checked tier, see Section 3.1) but is not a FACe submission operator or a Spanish e-invoicing exchange platform, and Facturae is not part of the generation Service. XAdES signing, routing to FACe or a Spanish exchange platform / Peppol Access Point, and end-to-end compliance with the applicable channel rules remain your responsibility (or that of a partner you engage).
  • Compliance with Spain's VeriFactu regime. VeriFactu (Royal Decree 1007/2023) is a software-conformance regime: it sets requirements for the invoicing software that issues records, including tamper-evident, hash-chained records and optional real-time reporting to the AEAT. It is not a transmission channel Beliq can be "outside" by disclaimer. Beliq's generator does not currently produce VeriFactu-conformant records, so meeting any VeriFactu obligations that apply to you remains your responsibility. We will state clearly if and when Beliq supports VeriFactu.
  • Submission of Romanian e-invoices to the ANAF e-Factura system via the SPV (Spațiul Privat Virtual) portal. Beliq is not an ANAF-registered intermediary, does not handle certificate-based authentication against ANAF web services, and does not operate the sistemul național de facturare electronică record-retention obligations. The RO_CIUS national overlay is not part of the current Service. Signing the document, uploading it to ANAF, and end-to-end compliance with OUG 120/2021 / OMF 1366/2021 / Ordinul 4092/2022 remain your responsibility (or that of a partner you engage).
  • Tax, accounting, or legal advice. Validation results are based on official rules and schemas at the time of processing and do not constitute professional advice.
  • Long-term storage or archiving of generated invoices (see Section 6.3).

3.3 API Access

API access is authenticated via Bearer tokens (API keys) generated in the dashboard. You may create multiple API keys and are responsible for their secure storage.

4. Plans, Pricing, and Billing

4.1 Who you contract with

Two separate relationships apply. Your use of the Service is governed by these Terms with us (Tobias Satzger, operating as Beliq). Any paid subscription is sold to you by Creem (Armitage Labs OÜ, Estonia) as merchant of record: Creem is your contractual counterparty for the purchase, charges your payment method, issues your receipts and invoices, applies the tax treatment, and handles refunds. Creem's own buyer terms apply to that purchase alongside these Terms. We provide the Service; we do not receive your payment directly.

4.2 Free Plan

We offer a free plan that includes a limited number of documents per month. The free plan requires no payment information and is available indefinitely, subject to these Terms.

4.3 Paid Plans

Paid plans (Starter, Growth, Business, Enterprise) offer higher document quotas and additional features. Pricing is displayed on our website in EUR; Creem, as merchant of record, applies the applicable tax treatment (including VAT or reverse charge, where relevant) at checkout. Paid plans are billed monthly or annually.

4.4 Billing

By subscribing to a paid plan, you authorize Creem, as merchant of record, to charge your chosen payment method on a recurring basis. Creem issues your receipts and invoices and applies the tax treatment for your purchase. Fees are non-refundable except as required by applicable law or by Creem's buyer terms.

4.5 Plan Changes

You may upgrade or downgrade your plan at any time through the dashboard. Downgrades take effect at the end of the current billing period. Upgrades take effect immediately with prorated billing.

4.6 Price Changes

We reserve the right to change pricing. We will notify existing subscribers at least 30 days in advance. Continued use after the effective date constitutes acceptance of the new pricing.

5. Usage Limits and Quotas

5.1 Document Quotas

Each plan includes a monthly document quota, where one document is one generate, validate, parse, or convert call. Quota usage resets at the start of each billing period.

5.2 Rate Limits

API requests are subject to per-minute rate limits to ensure fair usage and service stability. Requests exceeding rate limits will receive an HTTP 429 response.

6. User Content

6.1 Ownership

You retain all rights, title, and interest in your Content. By submitting Content to the Service, you grant us a limited, non-exclusive license to process that Content solely for the purpose of providing the Service (i.e., generating, validating, or parsing the invoice).

6.2 Your Responsibility

You are solely responsible for the Content you submit. You represent and warrant that you have the necessary rights to submit and process all Content, and that your Content does not violate applicable laws or third-party rights. See our Acceptable Use Policy for prohibited content and activities.

6.3 No Persistent Storage

Invoice content submitted via the API is processed in memory and is not persistently stored. We log metadata about each request (operation type, status, processing time) but do not store the invoice data itself.

7. Webhooks

The Service allows you to configure webhook URLs for asynchronous notifications. You are responsible for ensuring the availability and security of your webhook endpoints and for validating webhook signatures. We are not responsible for delivery failures caused by unavailable or misconfigured endpoints.

8. Data Processing

We process personal data in accordance with our Privacy Policy. If you submit personal data of third parties through our API (e.g., customer names or addresses in invoices), you are the data controller and we act as a data processor under Art. 28 GDPR. In such cases, our Data Processing Agreement applies.

9. Acceptable Use

Your use of the Service is subject to our Acceptable Use Policy, which is incorporated into these Terms by reference. Violations may result in suspension or termination of your account.

10. Intellectual Property

10.1 Our Intellectual Property

The Service, including its software, APIs, documentation, design, and branding, is protected by copyright, trademark, and other intellectual property laws. All rights not expressly granted to you are reserved.

10.2 Feedback

If you provide suggestions, ideas, or feedback about the Service, you grant us a perpetual, irrevocable, non-exclusive, royalty-free license to use, modify, and incorporate such feedback without obligation.

11. Availability and Support

We strive to maintain high availability but do not guarantee uninterrupted operation. The Service may be temporarily unavailable due to maintenance, updates, or circumstances beyond our control. Support is provided via email on a reasonable-efforts basis.

12. Limitation of Liability

12.1 Unlimited Liability

We have unlimited liability for damages caused by intent or gross negligence, for injury to life, body, or health, and under mandatory statutory provisions (including liability under the German Product Liability Act).

12.2 Limited Liability

In cases of slight negligence, we are only liable for breaches of essential contractual obligations (cardinal obligations, "Kardinalpflichten"). In such cases, liability is limited to the foreseeable, contract-typical damage.

12.3 Exclusion

We are not liable for indirect, incidental, consequential, or punitive damages, or for loss of profits, data, or business opportunities, except to the extent required by Sections 12.1 and 12.2 above.

12.4 Cap

Subject to Sections 12.1 and 12.2, our total aggregate liability for any claims arising under or in connection with these Terms shall not exceed the fees paid by you in the twelve (12) months preceding the event giving rise to the claim, or EUR 100, whichever is greater.

13. Warranty

The Service is provided "as is" and "as available." To the extent permitted by German law (BGB), we disclaim all warranties beyond the statutory warranty rights. We do not warrant that generated invoices will pass all validation systems in all jurisdictions, or that the Service will meet all your requirements. Your statutory warranty rights under German law remain unaffected.

14. Indemnification

As a business user (entrepreneur within the meaning of Section 14 BGB), you agree to indemnify and hold us harmless from third-party claims, damages, and expenses arising from your use of the Service, your Content, or your violation of these Terms or applicable law.

15. Term and Termination

15.1 Termination by You

You may terminate your account at any time by contacting us at hello@beliq.eu. If you have an active paid subscription, you may cancel it through the dashboard. Cancellations take effect at the end of the current billing period.

15.2 Termination by Us

We may suspend or terminate your account immediately if:

  • You materially breach these Terms or the Acceptable Use Policy
  • You fail to pay outstanding fees
  • Your use poses a security risk or threatens the stability of the Service
  • Required by law

15.3 Effect of Termination

Upon termination, your access to the Service is revoked. Your account data will be deleted in accordance with our Privacy Policy and applicable data retention requirements.

16. Changes to These Terms

We may modify these Terms at any time. Material changes will be communicated to registered users at least 30 days in advance via email. Your continued use of the Service after the effective date constitutes acceptance.

17. Governing Law and Jurisdiction

These Terms are governed by the laws of the Federal Republic of Germany, excluding the United Nations Convention on Contracts for the International Sale of Goods (CISG).

The statutory rules on place of jurisdiction apply. Beliq contracts only with businesses (see Section 2.1), so consumer-specific jurisdiction rules are not applicable.

18. Severability

If any provision of these Terms is held to be invalid or unenforceable, the remaining provisions shall remain in full force and effect.

19. Entire Agreement

These Terms, together with the Privacy Policy, Acceptable Use Policy, Cookie Policy, and (where applicable) the Data Processing Agreement, constitute the entire agreement between you and us regarding the use of the Service.

20. Contact

For questions about these Terms, please contact us at:

Email: hello@beliq.eu