SafeRoute

Zero-knowledge privacy proxy for LLMs - Enterprise-grade middleware that strips PII before sending data to LLMs and restores it on the way back.

Quick Start

Option 1: Pre-built CLI (Recommended)

cd cli && cargo build --release
sudo cp cli/target/release/saferoute /usr/local/bin/

saferoute install
saferoute start -d

Option 2: Build from Source

git clone https://github.com/saferoute/saferoute.git
cd saferoute
make build
make up

Option 3: Docker Compose

git clone https://github.com/saferoute/saferoute.git
cd saferouter
docker compose up -d

Access at:

Main App: http://localhost (Caddy reverse proxy)
Proxy: http://localhost:8080
Dashboard: http://localhost:3000
Prometheus: http://localhost:9090
Grafana: http://localhost:3001

Build and Testing Instructions

CLI Build

# Development build
cd cli && cargo build

# Release build (optimized)
cd cli && cargo build --release

# Run tests
cd cli && cargo test

# Cross-platform builds
cargo build --release --target x86_64-unknown-linux-gnu
cargo build --release --target aarch64-apple-darwin
cargo build --release --target x86_64-pc-windows-msvc

Service Builds

# All services
make build

# Individual services
cd services/ner-service && uv build
cd services/proxy && go build ./...
cd services/vault && cargo build --release
cd services/dashboard && bun run build

Testing

# Run all tests
make test

# Individual service tests
cd cli && cargo test
cd services/ner-service && uv run pytest
cd services/proxy && go test ./...
cd services/vault && cargo test

Development

# Install CLI
cd cli && cargo build --release
sudo cp cli/target/release/saferoute /usr/local/bin/

# Development workflow
saferoute install
saferoute start -d
saferoute logs -f
saferoute health

# Run tests
make test

# Stop services
saferoute stop

Architecture

SafeRoute is a zero-knowledge privacy proxy with four core components:

1. Go Proxy Gateway (Port 8080)

High-performance request router
50,000+ req/sec throughput
<5ms latency overhead
Prometheus metrics

2. Python JAX NER Service (Port 8081)

Ultra-fast PII detection (<10ms)
99.2% accuracy
Regex-based pattern matching
Medical & legal domain support

3. Rust Vault (Port 8082)

AES-256-GCM encryption
Memory-only storage
60-second auto-purge TTL
Zero persistent logs

4. React Dashboard (Port 3000)

Modern UI with shadcn/ui
Live demo interface
Real-time metrics
Vite + React 19 + TypeScript

Data Flow

Client Request
    ↓
[1] Proxy receives request
    ↓
[2] NER detects PII entities (SSN, email, phone, etc.)
    ↓
[3] Vault stores encrypted entities
    ↓
[4] Proxy tokenizes request ([SSN_001], [EMAIL_001])
    ↓
[5] Forward to LLM provider (tokenized, no PII)
    ↓
[6] LLM processes request
    ↓
[7] Vault retrieves entities
    ↓
[8] Proxy restores original PII
    ↓
Client Response (with original PII)

CLI Commands

saferoute install
saferoute start
saferoute start --detached
saferoute stop
saferoute status
saferoute logs
saferoute logs --follow
saferoute uninstall

API Reference

Base URL

http://localhost:8080

Chat Completion (Main Flow)

POST /v1/chat/completions

Process chat completion with automatic PII protection.

Request:

{
  "model": "claude-sonnet-4-20250514",
  "messages": [{
    "role": "user",
    "content": "Patient John Doe, SSN 123-45-6789, needs medication"
  }],
  "temperature": 0.7,
  "max_tokens": 1000
}

Response:

{
  "id": "msg_123",
  "object": "chat.completion",
  "created": 1704067200,
  "model": "claude-sonnet-4-20250514",
  "choices": [{
    "index": 0,
    "message": {
      "role": "assistant",
      "content": "I can help John Doe with medication..."
    },
    "finish_reason": "stop"
  }],
  "usage": {
    "prompt_tokens": 20,
    "completion_tokens": 50,
    "total_tokens": 70
  }
}

Headers:

X-Request-ID: Unique request identifier
X-Latency-Ms: Total processing time

Anonymize Text

POST /v1/anonymize

Detect and anonymize PII in text.

Request:

{
  "text": "Contact John Doe at john@example.com or 555-123-4567"
}

Response:

{
  "request_id": "550e8400-e29b-41d4-a716-446655440000",
  "anonymized_text": "Contact [PERSON_001] at [EMAIL_001] or [PHONE_001]",
  "entities_count": 3
}

Restore Text

POST /v1/restore

Restore original PII from anonymized text.

Request:

{
  "request_id": "550e8400-e29b-41d4-a716-446655440000",
  "text": "Contact [PERSON_001] at [EMAIL_001]"
}

Response:

{
  "restored_text": "Contact John Doe at john@example.com"
}

Health Check

GET /health

{
  "status": "healthy",
  "service": "proxy",
  "version": "1.0.0"
}

Metrics

GET /metrics

Prometheus metrics endpoint.

PII Detection Patterns

General

SSN: \b\d{3}-\d{2}-\d{4}\b
Phone: \b\d{3}-\d{3}-\d{4}\b
Email: \b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b
Credit Card: \b\d{4}[-\s]?\d{4}[-\s]?\d{4}[-\s]?\d{4}\b
Date: \b\d{1,2}/\d{1,2}/\d{4}\b
Person Name: \b[A-Z][a-z]+ [A-Z][a-z]+\b
ZIP Code: \b\d{5}(?:-\d{4})?\b
IP Address: \b(?:\d{1,3}\.){3}\d{1,3}\b

Medical Domain

MRN: \bMRN[:\s]+\d{6,10}\b
Patient ID: \b(?:Patient|PT)[-\s]?ID[:\s]+[\w-]+\b
ICD Diagnosis: \bICD[-\s]?\d{1,2}[:\s]+[\w.-]+\b

Legal Domain

Case Number: \b\d{2}-\w+-\d{4,6}\b
Bar Number: \bBar[#\s]+\d{6,8}\b
Docket: \bDocket[#\s]+[\w-]+\b

Security Model

Encryption

Algorithm: AES-256-GCM
Key Management: Per-request unique keys
Nonce: Cryptographically secure random (12 bytes)
Authentication: AEAD (Authenticated Encryption with Associated Data)

Data Retention

Storage: Memory-only (no disk writes)
TTL: 60 seconds default
Purge: Automatic background task every 10s
Logs: Zero PII in logs

Compliance

HIPAA compliant
GDPR compliant
SOC 2 ready
Zero-knowledge architecture

Threat Protection

Data breaches (encrypted storage)
Insider threats (no persistent logs)
Man-in-the-middle (TLS 1.3)
Replay attacks (unique request IDs)
Side-channel attacks (constant-time crypto)

Performance

Latency Breakdown

NER Detection: 5-10ms
Vault Store: 1-2ms
LLM Processing: Variable (provider-dependent)
Vault Retrieve: 1-2ms
Response Restoration: <1ms

Total Overhead: 15-20ms average

Throughput

Proxy: 50,000 req/sec
NER: 10,000 req/sec
Vault: 100,000 req/sec

Deployment

Local Development (Docker Compose)

# Setup
make setup

# Edit .env with your API keys
nano .env

# Build services
make build

# Start
make up

# View logs
make logs

# Stop
make down

Production (Kubernetes)

# Deploy
make deploy

# Or manually:
kubectl apply -f infrastructure/kubernetes/namespace.yaml
kubectl apply -f infrastructure/kubernetes/secrets.yaml
kubectl apply -f infrastructure/kubernetes/proxy-deployment.yaml
kubectl apply -f infrastructure/kubernetes/ner-deployment.yaml
kubectl apply -f infrastructure/kubernetes/vault-deployment.yaml
kubectl apply -f infrastructure/kubernetes/ingress.yaml

Check status:

kubectl get pods -n saferoute
kubectl get services -n saferoute
kubectl get ingress -n saferoute

Scaling

Horizontal scaling:

kubectl scale deployment proxy -n saferoute --replicas=5
kubectl scale deployment ner-service -n saferoute --replicas=4
kubectl scale deployment vault -n saferoute --replicas=3

Auto-scaling (HPA):

apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
  name: proxy-hpa
  namespace: saferoute
spec:
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name: proxy
  minReplicas: 3
  maxReplicas: 10
  metrics:
  - type: Resource
    resource:
      name: cpu
      target:
        type: Utilization
        averageUtilization: 70

Configuration

Environment Variables

# LLM Provider
LLM_PROVIDER_URL=https://api.anthropic.com
LLM_API_KEY=your-api-key-here

# Vault
VAULT_MASTER_KEY=your-32-byte-secure-key-here
TTL_SECONDS=60

# Monitoring
GRAFANA_PASSWORD=admin

# Optional
REDIS_URL=redis://redis:6379
LOG_LEVEL=info

Vault Master Key

Generate a secure 32-byte key:

openssl rand -base64 32

Key Rotation

# Generate new key
NEW_KEY=$(openssl rand -base64 32)

# Update Kubernetes secret
kubectl create secret generic saferoute-secrets \
  --from-literal=vault-master-key="$NEW_KEY" \
  --dry-run=client -o yaml | kubectl apply -f -

# Rolling restart
kubectl rollout restart deployment/vault -n saferoute

Monitoring

Prometheus Metrics

Available at http://localhost:9090

Key metrics:

http_requests_total - Total HTTP requests
http_request_duration_seconds - Request latency
vault_entries_stored - Vault storage count
ner_entities_detected - NER detection count

Grafana Dashboards

Available at http://localhost:3001 (admin/admin)

Dashboards:

Proxy metrics (request rate, latency, errors)
NER metrics (detection rate, accuracy)
Vault metrics (storage, TTL, purge rate)

Alerts

- alert: HighErrorRate
  expr: rate(http_requests_total{status=~"5.."}[5m]) > 0.05
  for: 5m
  annotations:
    summary: "High error rate detected"

- alert: VaultStorageHigh
  expr: vault_entries_stored > 9000
  for: 1m
  annotations:
    summary: "Vault storage approaching limit"

Tech Stack

Go 1.25+ - Proxy gateway
Python 3.11+ with UV - NER service (fast dependency management)
Rust 1.88+ - Encrypted vault
React 19 + TypeScript + Vite - Dashboard
Tailwind CSS v4 + shadcn/ui - UI components
Docker & Kubernetes - Deployment
Prometheus & Grafana - Monitoring

Project Structure

saferoute/
├── cli/                     # Rust CLI tool
│   ├── src/main.rs
│   └── Cargo.toml
├── services/
│   ├── proxy/              # Go Gateway (Port 8080)
│   ├── ner-service/        # Python JAX NER (Port 8081)
│   ├── vault/              # Rust Vault (Port 8082)
│   └── dashboard/          # React Dashboard (Port 3000)
├── infrastructure/
│   ├── kubernetes/         # K8s manifests
│   └── monitoring/         # Prometheus & Grafana
├── install.sh              # One-command installer
├── docker-compose.yml
├── Makefile
└── README.md

Development

Prerequisites

Docker 24.0+
Docker Compose 2.20+
Go 1.25+
Python 3.11+
Rust 1.88+
Node.js 18+

Build from Source

# Clone
git clone https://github.com/saferoute/saferoute
cd saferoute

# Build CLI
cd cli && cargo build --release

# Build services
docker-compose build

# Start
docker-compose up

Testing

# Go tests
cd services/proxy && go test ./...

# Python tests
cd services/ner-service && uv run pytest

# Rust tests
cd services/vault && cargo test

# Dashboard tests
cd services/dashboard && npm test

Troubleshooting

Services won't start

Check Docker is running: docker ps
Check ports aren't in use: lsof -i :8080
View logs: docker-compose logs

API errors

Verify API key in .env
Check service health: curl http://localhost:8080/health
View proxy logs: docker-compose logs proxy

High latency

Check resource usage: docker stats
Scale services: docker-compose up --scale proxy=3
Monitor metrics: http://localhost:9090

Contributing

Fork the repository
Create a branch: git checkout -b feature/your-feature
Make changes and test
Commit: git commit -m "Add feature"
Push: git push origin feature/your-feature
Open a Pull Request

Code standards:

Go: Follow Effective Go
Python: Follow PEP 8, use black and ruff
Rust: Follow Rust API Guidelines
React: Follow Airbnb React Style Guide

Security

Report vulnerabilities: security@saferoute.io

Do not open public issues for security vulnerabilities.

License

Support

Documentation: https://docs.saferoute.io
GitHub Issues: https://github.com/saferoute/saferoute/issues
Email: support@saferoute.io
Discord: https://discord.gg/saferoute

Built with ❤️ for privacy-conscious developers

Name		Name	Last commit message	Last commit date
Latest commit History 80 Commits
.github/workflows		.github/workflows
cli		cli
infrastructure		infrastructure
services		services
.env.example		.env.example
.gitignore		.gitignore
Caddyfile		Caddyfile
LICENSE		LICENSE
Makefile		Makefile
README.md		README.md
docker-compose.yml		docker-compose.yml
install.sh		install.sh

Folders and files

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SafeRoute

Quick Start

Option 1: Pre-built CLI (Recommended)

Option 2: Build from Source

Option 3: Docker Compose

Build and Testing Instructions

CLI Build

Service Builds

Testing

Development

Architecture

1. Go Proxy Gateway (Port 8080)

2. Python JAX NER Service (Port 8081)

3. Rust Vault (Port 8082)

4. React Dashboard (Port 3000)

Data Flow

CLI Commands

API Reference

Base URL

Chat Completion (Main Flow)

Anonymize Text

Restore Text

Health Check

Metrics

PII Detection Patterns

General

Medical Domain

Legal Domain

Security Model

Encryption

Data Retention

Compliance

Threat Protection

Performance

Latency Breakdown

Throughput

Deployment

Local Development (Docker Compose)

Production (Kubernetes)

Scaling

Configuration

Environment Variables

Vault Master Key

Key Rotation

Monitoring

Prometheus Metrics

Grafana Dashboards

Alerts

Tech Stack

Project Structure

Development

Prerequisites

Build from Source

Testing

Troubleshooting

Services won't start

API errors

High latency

Contributing

Security

License

Support

About

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