The European card vault alternative to Primer.io
PCI Proxy is a PCI DSS Level 1 EU vault that stores card data in Europe, issues portable tokens for any processor, and includes an optional acquiring engine with transparent IC++ pricing from 0.45% — vault and process without a separate orchestration layer.
Why European teams choose PCI Proxy over Primer.io
A dedicated EU card vault with optional acquiring removes orchestration complexity while keeping card data under PCI DSS Level 1 control in Europe.
EU data residency
Card data stored exclusively in European data centres. No transatlantic transfers, and GDPR compliance simplified for EU merchants.
Dedicated PCI L1 vault
PCI Proxy is purpose-built for secure card storage — PCI DSS Level 1 certified, independently audited every year.
Transparent IC++ pricing
Interchange++ from 0.45%, published and itemised — not quote-only plans hidden behind a sales process.
Vault + acquiring in one
Tokenize cards in the EU vault and process through our RoxPay acquiring engine or any external processor — no extra orchestration layer required.
Processor-agnostic tokens
The same PCI Proxy token routes to Stripe, Adyen, Nexi or any other acquirer. No re-tokenization needed when you add or switch processors.
Every collection channel
Hosted fields, mobile SDKs, MOTO/phone, email pay links and API — collect cards securely wherever customers are.
Side by side
| Dimension | Primer.io | PCI Proxy (EU)RECOMMENDED |
|---|---|---|
| Data residency | Global | EU only |
| Primary focus | Payment orchestration | Dedicated PCI L1 vault |
| Pricing | Quote-based | IC++ from 0.45% |
| PCI scope reduction | Via connected processors | SAQ D to SAQ A |
| Built-in acquiring | Routes to 3rd parties | Optional EU acquiring |
| Collection channels | Web / API | Web, phone, API, MOTO |
| Certifications | Relies on processors | PCI L1, ISO 27001/9001, DORA |
Comparison based on publicly available information as of 2026. Check each provider for current details.
Move your vault without re-collecting cards
We handle secure vault migrations from Primer and any PCI-compliant provider. Existing card tokens are moved to PCI Proxy's EU vault without customers re-entering their details and without downtime.
Plan your migrationNo re-collection
Existing cards move as tokens — customers notice nothing.
No downtime
Recurring and card-on-file payments keep running through the switch.
Exit-friendly
We make leaving as easy as joining. Your data is never held hostage.
Primer.io alternative, answered
01What is the best European alternative to Primer.io for card vaulting?
PCI Proxy is a European PCI DSS Level 1 vault with processor-agnostic tokenization, 100% EU data residency, and transparent interchange++ pricing from 0.45%.
02How is PCI Proxy different from Primer.io?
Primer.io focuses on payment orchestration through a unified API. PCI Proxy is a dedicated PCI DSS Level 1 card vault with EU data residency, portable tokens, and an optional acquiring engine with IC++ pricing.
03Can I use PCI Proxy alongside Primer.io?
Yes. PCI Proxy can act as the card vault layer that feeds tokenized references into your Primer.io orchestration setup, keeping raw card data in an EU-certified vault.
04Does PCI Proxy reduce PCI DSS scope?
Yes. Most merchants move from SAQ D to SAQ A.
05Can I migrate card data from Primer.io to PCI Proxy?
Yes. We handle secure vault migrations from any PCI-compliant provider without customers re-entering their details.
A dedicated EU vault with transparent pricing
Tell us about your current setup and we'll show you how to vault cards in the EU and process with any acquirer — from one provider, at published rates.