anonym.legal vs Basis Theory
Basis Theory is a payment vault and tokenization platform for fintech, with PCI Level 1 compliance, network tokens, and payment routing. anonym.legal is a PII anonymization platform with reversible encryption, 285+ entity types, and multiple interfaces for data protection.
Feature Comparison
| Feature | anonym.legal | Basis Theory |
|---|---|---|
| Primary Focus | PII Anonymization | Payment Vault / Tokenization |
| Pricing | Free to €29/mo | Not published |
| Free Tier | Yes | Not found |
| PII Detection | Yes | Not found |
| PII Masking/Redaction | Yes | Not found |
| Reversible Tokenization | Yes | Yes |
| Entity Types | 285+ | Payment-focused |
| Language Support | 48 languages | Not specified |
| REST API | Yes | Yes |
| Chrome Extension | Yes | Not found |
| MCP Server (AI Tools) | Yes | Not found |
| Office Add-in | Yes | Not found |
| Desktop App | Yes | Not found |
| PCI Level 1 Compliance | No | Yes |
| GDPR/HIPAA Compliance | Yes | Yes |
| Zero-Knowledge Auth | Yes | Not found |
Comparison based on publicly available information. "Not found" indicates feature not documented on product page. Last updated February 2026.
Why Choose anonym.legal
Reversible Encryption
AES-256-GCM encryption with your keys. Decrypt when needed for audits, court orders, or compliance reviews.
285+ Entity Types
Detect PII across healthcare, financial, legal, and personal data categories with checksum validation for IDs.
Chrome Extension
Protect data before sending to ChatGPT, Claude, or Gemini. Browser-level anonymization for AI workflows.
MCP Server
Native integration with Claude Desktop via Model Context Protocol. Build privacy-first AI workflows.
48 Languages
Multi-language entity recognition with country-specific ID validation. Global coverage for international documents.
Transparent Pricing
Free tier + €3-29/month plans with no sales calls required. Know your costs upfront.
Zero-Knowledge Security
Your password never leaves your device. Even if our servers were breached, your credentials remain safe.
When Basis Theory Might Be Better
Basis Theory excels in payment and fintech scenarios:
- Payment tokenization: Purpose-built vault for payment card data with PCI Level 1 compliance
- Multi-PSP routing: Route payments to multiple payment service providers from a single vault
- Network tokens: Improve authorization rates with network tokenization
- Subscription billing: Reduce churn with smart payment routing and account updater
- Developer-first: Comprehensive APIs and SDKs for payment integration
Frequently Asked Questions
What's the difference between anonym.legal and Basis Theory?
anonym.legal is a PII anonymization platform with 285+ entity types and multiple delivery methods (API, Desktop, Chrome Extension, Office Add-in, MCP Server). Basis Theory is a payment vault and tokenization platform focused on PCI compliance and fintech use cases. Different tools for different use cases.
Do both support reversible tokenization?
Yes, both support reversible tokenization. anonym.legal uses AES-256-GCM encryption for general PII. Basis Theory uses tokenization optimized for payment data and PCI compliance.
Which is better for general PII protection?
anonym.legal is better for general PII with 285+ entity types across healthcare, financial, legal, and personal data categories. Basis Theory is optimized specifically for payment card data.
Does anonym.legal support payment card tokenization?
anonym.legal can detect and anonymize credit card numbers, but it's not a PCI-certified payment vault. For payment-specific tokenization with PSP routing, Basis Theory is more specialized.
Which has better AI tool integration?
anonym.legal has dedicated Chrome Extension and MCP Server for AI workflow protection. Basis Theory is focused on payment infrastructure and doesn't appear to offer AI-specific integrations.
Does anonym.legal offer zero-knowledge authentication?
Yes. anonym.legal uses zero-knowledge authentication with Argon2id and HKDF. Your password is processed on your device — only a mathematical proof is sent to the server, never the actual password.
Try anonym.legal Free
Reversible encryption. 285+ entity types. Multiple interfaces. Start with 200 free tokens today.