CENTIPEDE

Multi-cloud API anomaly detection and tenant protection system

Features • Quick Start • Documentation • Roadmap

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Multi-cloud API anomaly detection and tenant protection system.

Overview

CENTIPEDE detects compromised API clients in multi-tenant platforms before they cascade damage across other tenants. It uses cumulative scoring to detect anomalies and enforces graduated responses: rate limiting for warnings, blocking for critical anomalies, and instant kill-switch capability.

Core Problem

When one tenant in a multi-tenant API platform gets compromised, it can cascade damage across all other tenants. CENTIPEDE detects this before it spreads.

Core Solution

Real-time anomaly detection on API traffic with threshold-based graduated response:

• Rate limiting for warning-level anomalies (score 2-3)
• Complete blocking for critical anomalies (score 4+)
• Manual kill-switch for emergency intervention

Features

Detection Scoring System

Each request/tenant is analyzed against baseline and triggers cumulative scores:

• Volume Spike — Requests/sec exceeds 2x baseline = +1 score
• Endpoint Anomaly — Accessing unusual/new endpoints = +1 score
• Payload Size Surge — Avg request body exceeds 3x baseline = +1 score
• Time-of-Day Deviation — Request pattern outside normal hours = +1 score
• Error Rate Jump — 4xx/5xx responses exceed 10x baseline = +1 score
• Honeypot Hit — Request to decoy endpoint = +3 score

Actions

• Score 2-3: Apply rate limiting to the tenant
• Score 4+: Block tenant completely
• Manual override: Instant kill-switch with IAM revocation and incident creation

Multi-Cloud Support

• Phase 1 (MVP): Azure API Management (APIM) + Azure Monitor
• Phase 2: AWS API Gateway + CloudWatch Logs
• Phase 3: GCP Cloud API Gateway + Cloud Logging

Installation

git clone https://github.com/bogdanticu88/centipede.git
cd centipede
go build -o centipede ./cmd/centipede

Usage

Initialize (Learn Baselines)

./centipede init \
  --config config.yaml \
  --log-source <path-or-uri> \
  --window 7d \
  --output baseline.json

Detect Anomalies

./centipede detect \
  --baseline baseline.json \
  --log-source <path-or-uri> \
  --config config.yaml \
  --output detections.json

Monitor Continuously

./centipede monitor \
  --baseline baseline.json \
  --log-source <path-or-uri> \
  --config config.yaml \
  --alert slack

Emergency Block

./centipede kill \
  --tenant <tenant-id> \
  --config config.yaml \
  --reason "Suspected compromise"

Generate Report

./centipede report \
  --detections detections.json \
  --baseline baseline.json \
  --html \
  --output report.html

Check Status

./centipede status \
  --baseline baseline.json \
  --log-source <path-or-uri> \
  --config config.yaml

Configuration

See examples/config.yaml for a complete configuration example:

cloud: azure

azure:
  apim_name: my-apim
  resource_group: my-rg
  subscription_id: xxx

detection:
  volume_threshold: 2.0
  payload_threshold: 3.0
  error_rate_threshold: 10.0
  score_warning: 2
  score_critical: 4

honeypots:
  - path: /admin/debug
    severity: 3
  - path: /.env
    severity: 5

tenants:
  - id: salesforce-ro
    name: Salesforce Romania
    endpoints:
      - /api/crm/*
      - /api/orders/*
    rate_limit_rps: 1000

Architecture

centipede/
├── cmd/centipede/          # CLI entrypoint
├── internal/
│   ├── baseline/           # Baseline learning
│   ├── detection/          # Anomaly scoring engine
│   ├── cloud/              # Cloud provider abstractions
│   ├── parsers/            # Log parsers
│   ├── models/             # Data models
│   ├── alert/              # Alerting (Slack, webhooks)
│   ├── config/             # Configuration
│   ├── cmd/                # Command handlers
│   └── storage/            # Cloud storage integration
├── pkg/metrics/            # Prometheus metrics
├── examples/               # Sample configs and logs
└── tests/                  # Tests

Documentation

• Quick Start — Get up and running in 5 minutes
• Deployment Guide — Production deployment strategies
• CI/CD Integration — GitHub Actions, GitLab CI, Jenkins
• Azure APIM Setup — Azure configuration and orchestration
• Production Readiness — Pre-production checklist

Supported Platforms

Platform	Status	Support
Azure APIM	✅ Stable	Production-ready
AWS API Gateway	🗺️ Planned	Phase 2
GCP Cloud API Gateway	🗺️ Planned	Phase 3
Kubernetes	✅ Ready	CronJob, Operator
Docker	✅ Ready	Multi-stage builds

Development

Prerequisites

• Go 1.24+
• Azure SDK (for Azure support)
• AWS SDK v2 (for AWS support)

Running Tests

go test ./...

Building for Production

go build -o centipede ./cmd/centipede

License

MIT

Contributing

Contributions welcome! Please open an issue or PR.

Roadmap

• Phase 1: MVP (Azure + Core Detection)
• Phase 2: AWS Support
• Phase 3: GCP Support + Advanced Detection
• Prometheus metrics export
• REST API for dashboards
• Kubernetes operator

Community

• Report Issues: GitHub Issues
• Discussions: GitHub Discussions
• Security: Security Policy

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Made with ❤️ by Bogdan Ticu