Simple, transparent pricing
Start free. Scale as you grow. Every plan includes audit-proof storage and German regulatory compliance.
Grows with You
No hidden fees. No per-seat pricing. Just API calls.
Free
Free forever
- ✓ 100 validations / month
- ✓ Single VAT ID lookups
- ✓ VIES + BZSt failover
- ✓ Structured JSON responses
- ✓ Audit-proof confirmation storage
- ✓ Email optional at signup
Starter
Everything in Free, plus
- ✓ 1,000 validations / month
- ✓ Batch validation endpoint
- ✓ Smart caching with freshness indicators
- ✓ Webhook monitoring for status changes
- ✓ Usage dashboard + API analytics
Business
Everything in Starter, plus
- ✓ 5,000 validations / month
- ✓ BZSt qualified confirmations (§18e UStG)
- ✓ E-invoice generation (XRechnung / ZUGFeRD)
- ✓ 10-year audit-proof archival
- ✓ Parsed address data
- ✓ Priority support
High-volume or custom needs? Connect with Roel →
Try before you sign up
Make your first 5 API calls with zero authentication. No signup, no API key, no email. Just curl https://api.giltiq.de/v1/validate/DE123456789 and see the response. When you're ready for more, registration takes 10 seconds.
Compare Plans
Every plan includes German data residency (Hetzner, Frankfurt) and GDPR-compliant processing.
| Feature | Free | Starter | Business |
|---|---|---|---|
| Validation | |||
| Monthly validations | 100 | 1,000 | 5,000 |
| VIES + BZSt failover | ✓ | ✓ | ✓ |
| Batch validation | — | ✓ | ✓ |
| BZSt qualified confirmations (§18e) | — | — | ✓ |
| Parsed company addresses | — | — | ✓ |
| Reliability & Caching | |||
| Smart caching with freshness metadata | — | ✓ | ✓ |
| Webhook status monitoring | — | ✓ | ✓ |
| E-Invoicing & Compliance | |||
| Audit-proof confirmation storage | ✓ | ✓ | ✓ |
| 10-year document retention | — | — | ✓ |
| XRechnung / ZUGFeRD generation | — | — | ✓ |
| Agent & Developer Experience | |||
| REST API + JSON responses | ✓ | ✓ | ✓ |
| MCP server | ✓ | ✓ | ✓ |
| Usage headers on every response | ✓ | ✓ | ✓ |
| Anonymous trial (5 calls, no auth) | ✓ | ✓ | ✓ |
| Support & Billing | |||
| Community support | ✓ | ✓ | ✓ |
| Priority email support | — | — | ✓ |
| Billing cycle | — | Monthly or annual | Monthly or annual |
Save your team 2–3 weeks of engineering
Building BZSt REST API integration in-house costs €3,900–5,200 in developer time, plus €1,500+/year to maintain. Giltiq Starter pays for itself in the first month.
Frequently asked questions
Sign up with just an API key — email is optional. You get 100 VAT validations per month with VIES and BZSt failover, structured JSON responses, and audit-proof confirmation storage.
Yes. The first 5 API calls require no authentication at all. Just hit the endpoint directly — no signup, no API key, no email.
On the Free tier, you hit a hard cap — requests return HTTP 402 until the next month. On Starter and Business plans, additional validations are billed as overage at €0.02 and €0.015 per call respectively.
Yes. Monthly plans can be cancelled at any time — you keep access until the end of your current billing period. Annual plans can also be cancelled, but are non-refundable for the remaining term.
A VIES lookup tells you whether a VAT number is valid — but it's not legally sufficient in Germany. A BZSt qualified confirmation additionally verifies the company name and address.
Annual plans are billed once per year at a 20% discount. Starter annual is €276/year (instead of €348). Business annual is €948/year (instead of €1,188).
All data is processed and stored on Hetzner infrastructure in Germany. No data leaves the EU. Audit-proof confirmations are retained for 10 years per German tax law.
Yes — it's designed for it. Giltiq publishes an MCP server in the official registry and an agents.json capability declaration.
If all upstream sources are unavailable and no cached result can be returned, the call returns SOURCE_UNAVAILABLE and is not counted against your quota. You only pay for lookups that return usable data.