The European Basis Theory alternative
A processor-agnostic vault like Basis Theory — but European. PCI Proxy adds 100% EU data residency, done-for-you collection across web, phone and API, an optional acquiring engine and transparent interchange++ pricing.
Why European teams choose PCI Proxy over Basis Theory
The same processor independence — with European custody, ready-made collection, and less to build and run yourself.
EU data residency
Card data is stored only in European data centres — straightforward GDPR and bank data-residency for EU businesses.
Done-for-you collection
Hosted fields, mobile SDKs, MOTO/phone and email payment links out of the box — not just a programmable vault you build around.
Vault + acquiring in one
Add our acquiring engine and run vaulting and processing through a single EU provider instead of wiring your own PSP.
Interchange++ pricing
Transparent IC++ from 0.45% tied to real transactions — instead of a fixed monthly platform subscription.
Still developer-friendly
Clean REST API, sandbox and SDKs so engineers ship in a few lines — with non-technical channels available too.
European support
Direct support that understands EU regulation and payments, not just infrastructure tickets.
Side by side
| Dimension | Basis Theory | PCI Proxy (EU) RECOMMENDED |
|---|---|---|
| Data residency | US-headquartered / global | EU only |
| Pricing model | Monthly platform plan | IC++ from 0.45% |
| Collection channels | Build with the API | Web, phone, email, API |
| Vaulting + acquiring | Vault only | One provider |
| Developer API | Yes | Yes |
| PCI scope reduction | SAQ A | SAQ D to SAQ A |
| Certifications | PCI DSS Level 1 | PCI L1, ISO 27001/9001, DORA |
Comparison based on publicly available information as of 2026. Check each provider for current details.
Bring your tokens, skip the rebuild
We run secure vault-to-vault migrations from any PCI-compliant provider, including Basis Theory. Cards move across as tokens with no downtime and no customer re-entry — and you can hand off the collection plumbing you built yourself to ready-made channels.
Plan your migrationNo re-collection
Existing cards move as tokens — a seamless cutover for customers.
No downtime
Recurring and card-on-file payments keep running through the switch.
Exit-friendly
Leaving is as easy as joining. Your tokens are never locked in.
Basis Theory alternative, answered
01 What is a European alternative to Basis Theory?
PCI Proxy is a European PCI DSS Level 1 vault that keeps card data in the EU. Like Basis Theory it is a processor-agnostic vault, but it bundles done-for-you collection (hosted fields, SDKs, phone/MOTO, email links), an optional acquiring engine and transparent interchange++ pricing from 0.45%.
02 How is PCI Proxy different from Basis Theory?
Basis Theory is a programmable, developer-first vault priced as infrastructure. PCI Proxy is a full-service European provider: EU data residency, ready-made collection channels, optional acquiring, and interchange++ pricing — less to build, and one provider for vaulting and processing.
03 Is PCI Proxy developer-friendly too?
Yes. You get a clean REST API, a sandbox and SDKs, so engineers can integrate in a few lines — while non-engineering teams can also use hosted fields, email payment links and MOTO without building anything.
04 Can I migrate my tokens from Basis Theory?
Yes. We run secure vault-to-vault migrations from any PCI-compliant provider, so existing cards move across as tokens with no downtime and no customer re-entry.
A European vault with the building done for you
Tell us about your stack and we'll map a switch from Basis Theory — vault, collection and acquiring in one place.