anonymize.dev — Privacy-as-Code for Developers
Privacy layer for developers using AI tools. Automatically detects and replaces PII in prompts — API keys, credentials, customer data — before they reach external AI services. 50+ entity types, 48 languages, MCP Server for Claude Desktop and Cursor.
Platform Overview
anonymize.dev is a privacy layer for developers who use AI tools like Claude Desktop, Cursor, or ChatGPT. It automatically detects and replaces personally identifiable information in prompts sent to AI models, then restores original values in responses. Designed for developers who work with real customer data, API keys, and infrastructure credentials in their daily AI workflows.
What Makes anonymize.dev Unique
Credential & Secret Detection
Detects API keys, SSH keys, JWT tokens, AWS secrets, OAuth tokens, private keys, client secrets, and database URLs. Prevents accidental credential leakage to AI services.
MCP Server Integration
Native integration with Claude Desktop and Cursor via MCP Server. Install via npm package, configure with your API key, and PII is intercepted automatically.
Zero Data Leakage
No real PII ever leaves your machine. AI models only see anonymized tokens. Original values are stored locally and restored in responses.
Custom Entity Patterns
Define your own regex patterns for proprietary identifiers — internal IDs, project codes, customer references. Extend detection beyond built-in entity types.
How It Works
anonymize.dev acts as a privacy shield between your AI tools and external AI services. Four steps, fully automatic.
- You Write a Prompt — Your prompt contains sensitive data: customer names, API keys, emails, database credentials
- MCP Server Anonymizes — PII is detected and replaced with tokens (e.g., [PERSON_1], [EMAIL_1], [API_KEY_1]). Original values stored locally
- AI Processes Safely — Claude, Cursor, or ChatGPT receives only the anonymized version. No real PII ever leaves your machine
- Response Restored — Tokens in the AI response are replaced with original values. You get full context back
What anonymize.dev Detects
Secrets & Credentials
- API_KEY — API keys and tokens
- SSH_KEY — SSH private/public keys
- JWT_TOKEN — JSON Web Tokens
- AWS_SECRET — AWS access keys
- DATABASE_URL — Connection strings
- OAUTH_TOKEN — OAuth credentials
- PRIVATE_KEY — Private keys
- CLIENT_SECRET — Client secrets
Infrastructure & Network
- IP_ADDRESS — IPv4 and IPv6
- MAC_ADDRESS — Hardware addresses
- HOSTNAME — Server hostnames
- URL — Internal URLs and endpoints
- FILE_PATH — File system paths
- CONTAINER_ID — Docker/container IDs
Customer PII
- PERSON — Full names
- EMAIL — Email addresses
- PHONE — Phone numbers
- ADDRESS — Physical addresses
- CREDIT_CARD — Card numbers
- IBAN — Bank accounts
- SSN — Social security numbers
- PASSPORT — Passport numbers
Custom Entities
Define your own regex patterns for proprietary identifiers. Detect internal project codes, customer reference numbers, and organization-specific data formats.
Extend the built-in 50+ entity types with unlimited custom patterns.
PII Detection & Anonymization
50+ Entity Types
Credentials, infrastructure data, customer PII, and custom patterns. Purpose-built for developer workflows where code meets customer data.
5 Anonymization Methods
- Replace — Substitute with fake data
- Redact — Complete removal
- Hash — SHA-256 hashing
- Encrypt — AES-256-GCM encryption
- Mask — Partial obscuring
48 Languages
Detect PII across 48 languages. Handle multilingual codebases, comments, documentation, and customer data in any language.
Automatic Restoration
AI responses automatically de-tokenized. Original values restored seamlessly so you get full context back without manual work.
Platform Components
MCP Server
Claude Desktop & Cursor
Primary integration method. Install via npx @anonym-legal/mcp-server, add your API key to claude_desktop_config.json or Cursor settings. Automatic PII interception.
REST API
JWT Authentication
RESTful endpoints for CI/CD pipeline integration, automated testing environments, and custom workflow automation.
Desktop App
Drag-and-Drop Processing
Drag files for quick anonymization. Documents stay on your device while using cloud-powered entity detection.
Office Add-in
Word, Excel & PowerPoint
Real-time PII detection directly in Microsoft Office. Anonymize documentation and specs without leaving your document.
Developer Scenarios
AI-Assisted Coding
Paste code containing customer data into Claude or Cursor without leaking real names, emails, or API keys to external AI services.
Code Review
Share code snippets with AI for review without exposing production credentials, database URLs, or infrastructure details.
CI/CD Pipelines
Integrate via REST API to scan logs, test data, and configuration files for PII before they enter version control or shared environments.
Test Data Generation
Create safe test datasets from production data. Replace real customer information with realistic fake data for development environments.
Documentation
Anonymize technical documentation, API specs, and internal wikis before sharing with external contractors or AI tools.
Compliance
GDPR compliance for development teams. Ensure no customer PII leaks through AI tool usage, code sharing, or log analysis.
Zero-Knowledge Architecture
No PII Leaves Your Machine
Original values stored locally on your device. Only anonymized tokens are sent to AI services. Zero data leakage by design.
Zero-Knowledge Authentication
Your password never leaves your device. Built with industry-standard cryptographic primitives for developer-grade security.
ISO 27001:2022 Certified
Hosted in Hetzner data centers in Germany. Full GDPR compliance with EU data residency.
npm Package Distribution
MCP Server distributed via npm (@anonym-legal/mcp-server). Standard package management, easy updates, transparent dependencies.
Transparent Token System
All tiers include the same features — API, Desktop App, Office Add-in, and MCP Server. Pay only for volume.
Free
€0/month
200 tokens per cycle
- MCP Server access
- REST API access
- Desktop App
- Office Add-in
- 48 languages
- No credit card required
Basic Most Popular
€3/month
1,000 tokens per cycle
- All Free features
- Token top-ups available
Pro Best Value
€15/month
4,000 tokens per cycle
- All Basic features
- Token top-ups available
Business Enterprise
€29/month
10,000 tokens per cycle
- All Pro features
- Priority support
- Token top-ups available
anonymize.dev vs cloak.business vs anonym.legal
Same product family, different focus areas. All hosted on ISO 27001-certified German servers.
| Feature | anonymize.dev | cloak.business | anonym.legal |
|---|---|---|---|
| Focus | Developers & AI Tools | Enterprise & Developers | Legal & Privacy-First |
| Entity Types | 50+ | 390+ | 260+ |
| Languages | 48 | 48 | 48 + RTL |
| Credential Detection | Yes (API keys, SSH, JWT, AWS) | Yes | Limited |
| Image Redaction | No | Yes (38 OCR langs) | No |
| MCP Server | Yes (primary integration) | Yes | Yes |
| Custom Entities | Yes (regex) | Yes | Yes |
| Zero-Knowledge Auth | Yes | Yes | Yes |
| Auto De-tokenization | Yes | Optional | Optional |
| Free Tokens | 200/cycle | 200/cycle | 200/cycle |
Try anonymize.dev
Start with 200 free tokens per cycle. All features included. No credit card required.
Related Platforms: cloak.business — Enterprise PII detection with image redaction | anonym.legal — Zero-Knowledge PII anonymization for legal
Need privacy-as-code for your dev team?
Let's discuss how anonymize.dev can protect your AI workflows and ensure zero data leakage.