blazing-art-mcp

Blazing ART MCP Server

⚡ Blazing-fast Adaptive Radix Tree (ART) powered MCP server delivering microsecond-latency structured memory access for Large Language Models. Built with Rust for zero V8 overhead and predictable performance.

This server implements the Model Context Protocol so any MCP-compatible LLM can query structured memory over JSON-RPC.

🚀 Performance Characteristics

Dataset Size	Lookup P95	Prefix Scan (100 matches)	Memory Usage
100k keys	8 µs	35 µs	12 MB
1M keys	11 µs	60 µs	85 MB

Note: Performance numbers dominated by JSON serialization, not ART traversal - demonstrating exceptional core efficiency.

🏗️ Architecture

┌─────────────────┐    MCP Protocol     ┌──────────────────┐
│   LLM Host      │◄──────────────────►│  Memory Server   │
│ (Claude/etc.)   │   JSON-RPC 2.0     │   (Rust + ART)   │
└─────────────────┘                     └──────────────────┘
                                               │
                                               ▼
                                        ┌──────────────┐
                                        │ Adaptive     │
                                        │ Radix Tree   │
                                        │ In-Memory    │
                                        └──────────────┘

Key Technologies

• 🦀 Rust: Memory-safe, zero-cost abstractions, predictable performance
• 🌳 Adaptive Radix Tree: O(k) operations, 8-52 bytes per key, cache-friendly
• 🔌 Model Context Protocol: Standardized LLM integration via JSON-RPC 2.0
• 🐳 Docker: Static-linked, distroless containers (<10MB)
• ☸️ Kubernetes: Production-ready with autoscaling, monitoring, security

🛠 Prerequisites

Install Rust 1.76+ using rustup if you don't already
have the toolchain:

curl https://sh.rustup.rs -sSf | sh -s -- -y
source $HOME/.cargo/env

Then you can build and test the project with cargo build and cargo test.

🎯 Quick Start

Local Development

# Clone and build
git clone https://github.com/JohnJBoren/blazing-art-mcp.git
cd blazing-art-mcp
cargo build --release

# Run with sample data
./target/release/blazing_art_mcp \
  --entities examples/entities.json \
  --events examples/events.json

# WebSocket mode for remote access
./target/release/blazing_art_mcp \
  --ws 0.0.0.0:4000 \
  --entities examples/entities.json

Docker Deployment

# Build optimized container
docker build -t blazing-art-mcp:latest .

# Run with STDIO (sidecar mode)
docker run -i --rm blazing-art-mcp:latest

# Run with WebSocket (service mode)
docker run -p 4000:4000 -p 3000:3000 blazing-art-mcp:latest \
  --ws 0.0.0.0:4000 --health-port 3000

Kubernetes Production

# Deploy to Kubernetes
kubectl apply -f k8s/deployment.yaml

# Check status
kubectl get pods -n mcp-memory
kubectl logs -f deployment/mcp-memory -n mcp-memory

# Health check
kubectl port-forward svc/mcp-memory-service 3000:3000 -n mcp-memory
curl http://localhost:3000/health/ready

🔧 Configuration

Command Line Options

blazing_art_mcp [OPTIONS]

Options:
  --entities <FILE>      JSON file with entity data to preload
  --events <FILE>        JSON file with event data to preload  
  --ws <ADDRESS>         WebSocket address (e.g., 0.0.0.0:4000)
  --event-limit <NUM>    Max events returned by prefix search [default: 64]
  --health-port <PORT>   Health check port [default: 3000]
  --telemetry           Enable OpenTelemetry tracing
  --health-check        Run health check and exit (for containers)

Environment Variables

# Logging
RUST_LOG=info                                    # Log level
OTEL_EXPORTER_OTLP_ENDPOINT=http://jaeger:4317  # Telemetry endpoint

# Performance tuning (set automatically)
MIMALLOC_LARGE_OS_PAGES=1                        # Use huge pages if available

📊 MCP Protocol Interface

The server exposes two primary tools via MCP:

1. Entity Lookup

{
  "tool": "lookupEntity",
  "arguments": {
    "name": "Albert Einstein"
  }
}

Response:

{
  "name": "Albert Einstein",
  "summary": "Theoretical physicist, Nobel Prize 1921...",
  "born": "1879",
  "tags": ["physicist", "relativity", "nobel"]
}

2. Event Search

{
  "tool": "findEvents", 
  "arguments": {
    "prefix": "2023-11"
  }
}

Response:

[
  {
    "id": "2023-11-01:meeting",
    "timestamp": "2023-11-01T10:00:00Z",
    "description": "Team standup meeting",
    "category": "work"
  }
]

🏭 Production Features

Security Hardening

• ✅ Non-root containers with distroless base images
• ✅ Read-only filesystems and dropped capabilities
• ✅ SBOM generation for supply chain security
• ✅ Vulnerability scanning with Trivy
• ✅ Network policies for micro-segmentation

Observability

• ✅ Health checks (/health/live, /health/ready)
• ✅ Prometheus metrics (/metrics)
• ✅ Structured logging with JSON output
• ✅ OpenTelemetry tracing for distributed systems
• ✅ Graceful shutdown with statistics logging

High Availability

• ✅ Horizontal Pod Autoscaling (2-10 replicas)
• ✅ Pod Disruption Budgets for rolling updates
• ✅ Anti-affinity rules for zone distribution
• ✅ Resource limits and quality of service

🔬 Performance Optimizations

Memory Allocator

// 2-6x performance improvement with custom allocator
#[global_allocator]
static GLOBAL: mimalloc::MiMalloc = mimalloc::MiMalloc;

Zero-Copy Serialization

// 10-50x faster than standard JSON with rkyv
use rkyv::{Archive, Serialize, Deserialize};

Cache-Aligned Data Structures

// Optimize for CPU cache lines
#[repr(align(64))]
struct AlignedMemory { ... }

📈 Benchmarking

# Run performance benchmarks
cargo bench

# Memory profiling
cargo run --release -- --entities large_dataset.json &
ps aux | grep blazing_art_mcp  # Check RSS memory

# Load testing with WebSocket
wrk -t12 -c400 -d30s http://localhost:4000/

🛠️ Development

Building from Source

# Development build
cargo build

# Optimized release build
cargo build --release

# With all security features
cargo build --release --target x86_64-unknown-linux-musl

Testing

# Unit tests
cargo test

# Integration tests
cargo test --test integration

# Clippy linting
cargo clippy -- -D warnings

# Security audit
cargo audit

Container Development

# Development container with hot reload
docker build --target development -t mcp-memory:dev .
docker run -v $(pwd):/app mcp-memory:dev

# Security scanning
docker build --target security-scan -t mcp-memory:scan .
docker run --rm mcp-memory:scan cat /tmp/trivy-report.sarif

🔄 Data Management

Loading Data

Entities (entities.json):

[
  {
    "name": "Claude Shannon",
    "summary": "Father of information theory...",
    "born": "1916",
    "tags": ["mathematician", "information-theory"]
  }
]

Events (events.json):

[
  {
    "id": "2024-01-15:discovery",
    "timestamp": "2024-01-15T14:30:00Z", 
    "description": "Major breakthrough in quantum computing",
    "category": "science"
  }
]

Persistence Strategies

1. Snapshot Loading: Mount JSON files for initial data load
2. Runtime Updates: Use MCP tools for dynamic mutations
3. Graceful Persistence: Flush to disk on shutdown signals

🐛 Troubleshooting

Common Issues

Container fails health check:

# Check health endpoint directly
docker exec -it <container> /blazing_art_mcp --health-check

# Verify port binding
docker ps | grep mcp-memory

High memory usage:

# Check ART statistics
curl http://localhost:3000/metrics

# Verify data size vs memory usage ratio

Performance degradation:

# Enable debug logging
RUST_LOG=debug ./blazing_art_mcp

# Check for JSON serialization bottlenecks in traces

📝 License

MIT License - see LICENSE for details.

🤝 Contributing

1. Fork the repository
2. Create a feature branch: git checkout -b feature/amazing-feature
3. Commit changes: git commit -m 'Add amazing feature'
4. Push to branch: git push origin feature/amazing-feature
5. Open a Pull Request

🙏 Acknowledgments

• Anthropic for the Model Context Protocol
• ART Paper by Leis et al.
• art-tree Rust implementation
• rmcp official Rust MCP SDK

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