anonym.legal vs Kong AI Gateway
Kong AI Gateway is an API gateway that governs and secures LLM traffic, with an optional PII Sanitizer plugin for detecting and redacting sensitive data. anonym.legal is a PII anonymization platform with reversible encryption, 285+ entity types, and user-level tools for transforming data before sharing with AI.
Feature Comparison
| Feature | anonym.legal | Kong AI Gateway |
|---|---|---|
| PII Detection | Yes | Check |
| PII Redaction/Anonymization | Yes | Check |
| Reversible Encryption | AES-256-GCM | Not found |
| Entity Types | 285+ | Not documented |
| Languages Supported | Yes | Not documented |
| REST API | Yes | Check |
| MCP Server | Yes | Not found |
| Chrome Extension | Yes | Not found |
| Office Add-in | Yes | Not found |
| Desktop App | Yes | Not found |
| GenAI Security Gateway | No | Check |
| Self-Hosted Option | No | Check |
| EU Data Residency | Germany (Hetzner) | Not documented |
| Free Tier | Yes | Not documented |
| Starting Price | Free / €3/mo | Contact sales |
| Zero-Knowledge Auth | Yes | — |
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.
Choose Kong AI Gateway when you need:
- Full API gateway with LLM traffic management
- Self-hosted Docker deployment
- Integration with existing Kong infrastructure
- Centralized API governance and rate limiting
- Full control over LLM proxy routing
Frequently Asked Questions
How does Kong AI Gateway differ from anonym.legal?
Kong AI Gateway is an API gateway focused on managing and governing LLM traffic at the infrastructure level. anonym.legal is a PII anonymization platform with end-user tools (Chrome Extension, Office Add-in, Desktop App) for transforming sensitive data before sharing with AI services.
Does Kong's PII Sanitizer support reversible anonymization?
Kong's PII Sanitizer plugin performs PII detection and redaction, but reversible tokenization is not documented in their public product pages. anonym.legal offers reversible encryption with AES-256-GCM for scenarios where you need to restore original values.
Can I use both solutions together?
Yes. Kong can handle API gateway routing and rate limiting for LLM traffic, while anonym.legal can provide pre-gateway anonymization or end-user tools for direct AI interaction. They address different layers of AI security.
What about EU data residency?
anonym.legal processes all data in Germany (Hetzner infrastructure) with no US cloud providers. Kong can be self-hosted but data residency depends on your deployment configuration.
Which solution is more cost-effective?
anonym.legal offers transparent pricing starting at €3/month with a free tier. Kong pricing requires contacting sales and typically involves enterprise licensing. For teams not already using Kong infrastructure, anonym.legal provides a more accessible entry point.
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
Start protecting sensitive data today with 285+ entity types, 48 languages, and reversible encryption.