<div align="center">

MCP Open Discovery v2.0

Enterprise Multi-Transport MCP Discovery & Automation Platform

▶ Executive Overview (One‑Pager) • Website • Architecture Diagram

<br/>

World’s first dynamic Model Context Protocol (MCP) discovery server with hot‑reloadable tool registry, pluggable marketplace, and secure AMQP transport layer.

</div> <!-- BEGIN UNIFIED BRAND HEADER (copy/paste to other repos) --> <div align="center"> <p> <img src="./docs/mcp-open-discovery-logo-white.png" alt="MCP Open Discovery" width="128" height="128" /> <img src="./docs/CodedwithAI-white-transparent.png" alt="Coded with AI" width="128" height="128" /> </p> <p><em>Forging Intelligent Systems with Purpose</em></p> <p><strong>Unified launch: MCP Open Discovery • AMQP Transport • VS Code Bridge</strong></p> <p> <a href="https://modelcontextprotocol.io/" target="_blank">Model Context Protocol</a> · <a href="https://github.com/nagual69/mcp-open-discovery" target="_blank">MCP Open Discovery</a> · <a href="https://github.com/nagual69/AMQPConnectorforMCP" target="_blank">AMQP Transport</a> · <a href="https://github.com/nagual69/vscode-mcp-open-discovery-amqp-bridge" target="_blank">VS Code AMQP Bridge</a> · <a href="https://www.linkedin.com/in/toby-schmeling-2200556/" target="_blank">LinkedIn Profile</a> </p> </div> <!-- END UNIFIED BRAND HEADER -->

Why Choose MCP Open Discovery

| Capability | Enterprise Outcome | | ---------- | ------------------ | | MCP 2025-11-25 Compliant | Full implementation of latest Model Context Protocol specification with SSE resumability, session TTL, and Origin validation | | Multi-Transport (HTTP • Stdio • AMQP) | Integrate AI + infra workflows across IDEs, services, message buses | | Dynamic Tool Registry & Hot‑Reload | Zero-downtime extension & controlled change windows | | Signed & Policy-Governed Plugins | Supply‑chain integrity + runtime dependency governance | | Encrypted Credential & CMDB Layer | Secure operational memory with auditability | | Capability Diff & Strict Modes | Prevent drift between declared vs. active capabilities | | Sandbox & Allowlist Enforcement | Runtime risk reduction for third‑party extensions | | Proxmox • SNMP • Zabbix • Nmap | Unified infrastructure discovery & monitoring fabric | | Marketplace Analytics | Operational insight (policy distribution, signatures, sandbox adoption) |

---

Backward Compatibility: MCP 2025-03-26 & 2025-11-25

Default Mode (Out-of-box): ServiceNow and legacy 2025-03-26 clients work without any changes. Sessions persist indefinitely unless explicitly deleted. → See Backward Compatibility Guide for configuration options and client integration patterns.

---

MCP 2025-11-25 Compliance & HTTP Session Robustness

The HTTP transport implements the complete Model Context Protocol specification (2025-11-25) with production-ready session management:

Session Management Features

• Session TTL with Reconnection: Sessions survive SSE disconnections for 10 minutes (configurable via MCP_SESSION_TTL_MS), enabling clients to reconnect with Last-Event-ID header without re-initialization
• SSE Resumability (SEP-1699): Clients receive retry field indicating reconnection interval; server supports polling pattern with graceful disconnect/reconnect cycles
• Origin Validation (Security): MUST respond with 403 Forbidden for invalid Origin headers per MCP specification security requirements (prevents DNS rebinding attacks)
• Enhanced Diagnostics: Comprehensive logging of session lifecycle events (creation, activity, expiration, closure) with session metadata tracking
• Stateless Request Support: One-off requests without session management for simple clients (e.g., ServiceNow integrations)

Session Lifecycle

┌─────────────┐
│ Initialize  │  POST /mcp (no session ID)
│   Request   │  → Server creates session, returns MCP-Session-Id header
└──────┬──────┘
       │
       ▼
┌─────────────┐
│   Active    │  Subsequent requests include MCP-Session-Id header
│   Session   │  Activity refreshes TTL (default: 10 min from last activity)
└──────┬──────┘
       │
       ├──► SSE Stream Opens (GET /mcp)
       │    │
       │    ├──► Server MAY disconnect at will (sends retry field)
       │    │
       │    └──► Client reconnects with Last-Event-ID (within TTL)
       │         Session preserved, stream resumed
       │
       ├──► Explicit DELETE /mcp → Immediate cleanup
       │
       └──► TTL Expires → 404 on next request
            Client re-initializes (POST /mcp without session ID)

Configuration

# Session management (default values shown)
MCP_SESSION_TTL_MS=600000          # 10 minutes
MCP_SSE_RETRY_MS=3000              # 3 seconds

# Security (MCP spec requirement)
MCP_VALIDATE_ORIGIN=true           # Enable Origin validation
MCP_ALLOWED_ORIGINS=http://localhost,http://127.0.0.1

Client Compatibility

• VS Code MCP Extension: Fully compatible; reconnects automatically within TTL window
• ServiceNow/Simple Clients: Use stateless mode (omit MCP-Session-Id header)
• Long-Running Integrations: Benefit from session persistence across network disruptions

---

AMQP Transport Integration (Enterprise Message Bus Mode)

The AMQP transport enables horizontally scalable, decoupled MCP request/response flows over RabbitMQ. This allows infrastructure discovery, monitoring enrichment, and AI agent orchestration to share a common secure event fabric.

Architecture Highlights

• Topic-based exchanges for routing (mcp.notifications, per‑session routing exchange)
• Per-session ephemeral queues with TTL & auto-delete for isolation
• Structured routing keys: mcp.request.<category>.<method> and notification fan-out (mcp.notification.#)
• Heartbeat exchange (mcp.heartbeat) for liveness & operational dashboards
• Idempotent lifecycle: SDK triggers start(); initialize response flows through AMQP channel
• Capability negotiation preserved across transports

Enterprise Use Cases

| Use Case | Benefit | | -------- | ------- | | Cross-Datacenter Discovery | Route tool calls via AMQP without direct network exposure | | AI Workflow Orchestration | Publish discovery outputs for downstream enrichment pipelines | | Event-Driven Compliance | Trigger scans upon asset onboarding messages | | Hybrid Ops Bridge | Link cloud + on‑prem systems using a uniform protocol layer |

Operational Controls

• Override queue/exchange names via env (AMQP_EXCHANGE, AMQP_QUEUE_PREFIX)
• Fine-grained subscription patterns for security segmentation
• Supports concurrent transports (e.g., TRANSPORT_MODE=http,amqp)
• Health & heartbeat signals consumable by observability stacks

---

Plugin & Marketplace Architecture

The platform ships with a policy-aware plugin marketplace enabling governed extensibility under strict integrity, signature, and sandbox controls.

Integrity & Supply Chain

• Deterministic distribution hash (sha256) + per-file checksum coverage
• Lock file v2 enrichment: file counts, total bytes, coverage, policy snapshot, signature metadata
• Automatic migration of legacy lock descriptors

Dependency Policies (dependenciesPolicy)

| Policy | Runtime Behavior | Typical Use | | ------ | ---------------- | ----------- | | bundled-only | All code self-contained | High-security zones | | external-allowed | External requires permitted | Internal trusted extensions | | external-allowlist | Only declared externalDependencies resolved | Controlled partner modules | | sandbox-required | Allowlist + runtime sandbox (blocks eval/new Function/native addons) | Third-party / marketplace |

Runtime Governance

• Capability diff with optional STRICT_CAPABILITIES=1 enforcement
• Signature verification (RSA / Ed25519) via PLUGIN_REQUIRE_SIGNED=1
• Allowlisted module load gate + deny native .node binaries under sandbox mode
• Eval & dynamic function creation disabled when sandboxed

Observability & Analytics

• Policy distribution & signature adoption metrics
• Sandbox adoption ratios for risk posture tracking
• On-demand integrity rescans (tool_store_rescan_integrity)

Marketplace Tooling

| Tool | Purpose | | ---- | ------- | | tool_store_list_policies | Enumerate installed plugins + policy & signature status | | tool_store_show | Detailed plugin manifest + lock metrics | | tool_store_rescan_integrity | Recompute distribution hash & validate coverage |

Looking for custom discovery modules or private plugin distribution? Contact the maintainers to discuss secure supply‑chain onboarding.

---

Enterprise Feature Matrix

| Domain | Feature | Description | | ------ | ------- | ----------- | | Security | Encrypted credentials | AES-256 encrypted store + audit log | | Security | Policy-governed plugins | Runtime dependency & sandbox enforcement | | Security | Signature verification | RSA & Ed25519 trusted key model | | Compliance | Capability diff control | Detect & block undeclared tool exposure | | Compliance | Audit-ready logs | Credential + plugin lifecycle events | | Operations | Hot‑reload registry | Zero-downtime module updates | | Operations | Multi-transport core | HTTP + AMQP + stdio concurrency | | Operations | Health & heartbeat | /health endpoint + AMQP heartbeat exchange | | Discovery | Proxmox, SNMP, Nmap, Zabbix | Unified multi-surface infrastructure mapping | | Extensibility | Marketplace APIs | Install, inspect, rescan, govern plugins | | Observability | Analytics snapshot | Policy/signature/sandbox adoption metrics |

---

MCP Open Discovery v2.0 🚀🔥

<div align="left"> <div align="center"> <img src="./docs/mcp-open-discovery-logo-white.png" alt="MCP Open Discovery Logo" width="200" /> </div>

Enterprise-grade Model Context Protocol (MCP) server for infrastructure discovery, lightweight CMDB, and tooling orchestration. Designed for security-conscious environments, built on the official MCP SDK, and deployable with containers by default.

<div align="center"> <img src="./docs/CodedwithAI-white-transparent.png" alt="Coded with AI" width="160" /> <br/> _{This project was substantially coded with AI under human direction and review. Code and architecture decisions were guided, verified, and integrated by humans.} </div>

Overview

MCP Open Discovery provides a single MCP server that exposes a broad set of discovery, monitoring, and CMDB-style capabilities via tools. It uses a centralized tool registry with hot‑reload, an SQLite-backed persistent store for CIs, and a container-first deployment approach.

This README aims to describe current capabilities plainly and avoid over‑claiming. For regulated or large enterprise environments, please evaluate features in a staging environment before production use.

Highlights

• Single MCP server instance shared by multiple transports
• Central tool registry with hot‑reload and modular categories
• SQLite-backed persistent memory/CMDB with manual and periodic saves
• Credential management with encryption and audit logging
• Structured logging and a health endpoint for basic observability

Current Transport Support

• HTTP: supported and enabled by default (port 3000). Recommended convention for remote clients: port 6270 (set HTTP_PORT=6270).
• Stdio: supported for local/embedded scenarios
• AMQP (RabbitMQ): available; evaluated in practice. Suitable for non-interactive integrations. For IDE integrations, confirm MCP transport compliance in your environment.
• gRPC: not enabled; future consideration

Notes:

• Transport selection can be tailored per deployment. Validate AMQP behavior with your client stack before relying on it.

OAuth 2.1 Authorization (Production)

The server supports OAuth 2.1 (RFC 6749/9728) for the HTTP transport. This is disabled by default and must be explicitly configured.

Configuration

To enable OAuth, set the following environment variables:

OAUTH_ENABLED=true
OAUTH_INTROSPECTION_ENDPOINT=https://auth.example.com/realms/mcp/protocol/openid-connect/token/introspect
OAUTH_CLIENT_ID=mcp-resource-server
OAUTH_CLIENT_SECRET=your-client-secret

Features

• RFC 7662 Introspection: Validates tokens against your Identity Provider (Keycloak, Auth0, etc.).
• RFC 9728 Discovery: Exposes /.well-known/oauth-protected-resource for clients to discover auth servers.
• Scope Enforcement: Enforces mcp:read, mcp:tools, etc. via WWW-Authenticate challenges.
• Dev Mode: If OAUTH_ENABLED=true but no introspection endpoint is set (and not in production), a mock validator accepts tokens starting with mcp_.

Tooling Scope (overview)

The server typically registers 70+ tools across these categories (exact counts can vary by build):

• Memory (CMDB/persistence)
• Credentials
• Network (ping, DNS, HTTP fetch, routes, interfaces, ARP, etc.)
• Nmap scanning (capability-aware)
• SNMP discovery and inspection
• Proxmox cluster inspection
• Zabbix integration (inventory, metrics, events)
• Registry/Hot‑reload management
• Test/Debug utilities

Refer to the code under tools/ for the authoritative list and schemas.

Architecture basics

• Server: mcp_open_discovery_server.js creates a single MCP server instance and starts available transports.
• Registry: tools/registry/index.js centralizes tool loading/registration and hot‑reload management.
• Persistence: tools/memory_tools_sdk.js uses SQLite (via tools/registry/database_layer.js) to persist CI data.
• Credentials: encrypted storage with audit trails (see tools/credentials_tools_sdk.js).
• HTTP Transport: tools/transports/core/http-transport.js implements MCP 2025-11-25 specification with session TTL, SSE resumability, and Origin validation.
• Transport Manager: tools/transports/core/transport-manager.js orchestrates multi-transport lifecycle with singleton server pattern.

Architecture diagram

<img src="./docs/mcp_server_architecture.svg" alt="MCP Open Discovery Architecture" width="768"/>

• Full diagram (Mermaid): open_mcp_architecture.mmd
• Tip: In VS Code, install a Mermaid preview extension to view it; you can also copy the content into a Markdown ```mermaid block for GitHub rendering.

Design considerations:

• Prefer least privilege (Docker capabilities vs. privileged mode for scans).
• Avoid duplicate registrations via a single server instance.
• Provide stable defaults with clear extension points.

Quick start

Prerequisites: Docker Desktop (includes Docker Compose), Git

Windows (PowerShell):

./rebuild_deploy.ps1

Linux/Mac (alternative):

docker compose -f docker/docker-compose.yml up -d

Verify:

curl http://localhost:6270/health

Runtime paths

• Data: /home/mcpuser/app/data (container volume)
• Logs: /home/mcpuser/app/logs (container volume)
• Plugins: default /home/mcpuser/plugins in containers (mounted volume). When running locally, defaults to <home>/plugins then <cwd>/plugins if needed. Override with PLUGINS_ROOT (must be writable).

Minimal production compose

For a lean, production-only deployment of the MCP server:

• HTTP only: docker compose -f docker/docker-file-mcpod-server.yml up -d
• With AMQP broker (RabbitMQ): docker compose -f docker/docker-file-mcpod-server.yml --profile with-amqp up -d The prod scripts below auto-set TRANSPORT_MODE; if running manually, set TRANSPORT_MODE=http,amqp.

Deployment scripts

• Windows (full stack or server-only):
  • Full/dev stack: ./rebuild_deploy.ps1 (uses docker/docker-compose.yml)
  • Minimal production server: ./rebuild_deploy_prod.ps1
    • Transports (choose any): -Http, -Amqp, -Stdio (default -Http if none specified)
    • RabbitMQ container: -WithRabbitMq (optional; use with -Amqp if you want an in-stack broker)
    • Note: the prod script will include HTTP alongside AMQP when -WithRabbitMq is used so the container's HTTP healthcheck stays green. If invoking Compose manually with the RabbitMQ profile, set TRANSPORT_MODE=http,amqp.
    • Project scoping: -ProjectName <name> (overrides COMPOSE_PROJECT_NAME; auto-lowercased for Docker)
    • Deprecated: -WithAmqp (alias of -Amqp -WithRabbitMq)
• Linux/macOS:
  • Full/dev stack: ./rebuild_redeploy.sh (uses docker/docker-compose.yml)
  • Minimal production server: ./rebuild_redeploy_prod.sh
    • Transports: --http, --amqp, --stdio (default --http if none specified)
    • RabbitMQ container: --with-rabbitmq (optional)
    • Project scoping: --project-name <name> or COMPOSE_PROJECT_NAME (will be normalized to lowercase)
    • Deprecated: --with-amqp (alias of --amqp --with-rabbitmq)

Security notes

• Credentials are stored encrypted with audit logging; integrate with your secrets management process for production.
• CI persistence uses SQLite; apply host or volume encryption per policy if required.
• Network scanning tools (e.g., nmap) may require extra container capabilities; review docker/docker-compose.yml before enabling.

Operational notes

• Hot‑reload is supported for tool modules; validate in lower environments before promoting changes.
• Tool counts and schemas may evolve; use the MCP tools/list method to discover the current interface.
• AMQP usage depends on client compatibility with MCP transports. Test end‑to‑end in your stack if you plan to rely on AMQP.

Example calls (HTTP)

Network ping:

curl -X POST http://localhost:6270/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"ping","arguments":{"host":"127.0.0.1","count":2}}}'

SNMP device inventory:

curl -X POST http://localhost:6270/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"snmp_device_inventory","arguments":{"host":"192.168.1.10","version":"2c","community":"public"}}}'

Zabbix host discovery:

curl -X POST http://localhost:6270/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":3,"method":"tools/call","params":{"name":"zabbix_host_discover","arguments":{"baseUrl":"http://localhost:8080","username":"Admin","password":"zabbix"}}}'

Roadmap (selected)

• Harden AMQP transport for broader client compatibility
• Expanded observability (metrics, tracing integration points)
• Optional at-rest encryption for CI persistence
• Additional enterprise connectors and discovery modules

License

Mozilla Public License 2.0 (MPL-2.0). See LICENSE for details.

Plugin Dependency Policies & Integrity (v2)

This deployment includes an advanced plugin marketplace with integrity, policy, and sandbox controls.

Policies (dependenciesPolicy): | Policy | Purpose | Env Requirements | | ------ | ------- | ---------------- | | bundled-only | All code bundled in dist; no runtime external requires | None | | external-allowed | Runtime external requires permitted | PLUGIN_ALLOW_RUNTIME_DEPS=1 | | external-allowlist | Only modules in externalDependencies allowed at runtime | PLUGIN_ALLOW_RUNTIME_DEPS=1 | | sandbox-required | Allowlist + hardened sandbox (blocks eval/new Function/native addons) | SANDBOX_AVAILABLE=1 (+PLUGIN_ALLOW_RUNTIME_DEPS=1 if externals used) |

Integrity & Security:

• Dist hash (sha256) verification + optional per-file checksums with coverage.
• Capability diff (declared vs registered) with STRICT_CAPABILITIES=1 enforcement.
• Signature verification (RSA / Ed25519) via PLUGIN_REQUIRE_SIGNED=1 or REQUIRE_SIGNATURES=1.
• Auto-migrated and enriched lock file (install.lock.json) with metrics & policy snapshot.
• Runtime sandbox (sandbox-required) denies eval, new Function, and native addon loading.

Feature Flags Summary: SCHEMA_PATH, STRICT_CAPABILITIES, PLUGIN_ALLOW_RUNTIME_DEPS, PLUGIN_REQUIRE_SIGNED / REQUIRE_SIGNATURES, SANDBOX_AVAILABLE.

Marketplace Tools Added:

• tool_store_list_policies
• tool_store_show
• tool_store_rescan_integrity

Use these to audit plugin state and verify dist integrity post-installation.

### **🔐 Unified Credential Management**

The platform uses a unified credential system supporting multiple credential types. Here's how to set up credentials for different systems:

```bash
# Add Proxmox credentials
curl -X POST http://localhost:6270/mcp \
  -H "Content-Type: application/json" \
  -d '{
    "method": "tools/call",
    "params": {
      "name": "credentials_add",
      "arguments": {
        "id": "proxmox-main",
        "type": "password",
        "username": "admin@pam",
        "password": "your-password",
        "url": "https://pve.example.com:8006",
        "notes": "Proxmox VE cluster primary, realm:pam, verify_ssl:true"
      }
    }
  }'

# Add Zabbix credentials
curl -X POST http://localhost:6270/mcp \
  -H "Content-Type: application/json" \
  -d '{
    "method": "tools/call",
    "params": {
      "name": "credentials_add",
      "arguments": {
        "id": "zabbix-main",
        "type": "password",
        "username": "Admin",
  "password": "<your-password>",
        "url": "http://172.20.0.22:8080",
        "notes": "Zabbix server main admin"
      }
    }
  }'

# List all credentials (secure - only metadata shown)
curl -X POST http://localhost:6270/mcp \
  -H "Content-Type: application/json" \
  -d '{"method": "tools/call", "params": {"name": "credentials_list"}}'

# Use credentials with tools (auto-detected or specify creds_id)
curl -X POST http://localhost:6270/mcp \
  -H "Content-Type: application/json" \
  -d '{"method": "tools/call", "params": {"name": "zabbix_host_discover", "arguments": {"creds_id": "zabbix-main"}}}'

---

🔧 Complete Tool Reference

🌐 Network Discovery Tools (8/8 ✅ 100%)

• ping - ICMP echo requests with configurable count and timeout
• wget - HTTP/HTTPS content retrieval with headers and retry logic
• nslookup - DNS resolution with multiple record type support
• netstat - Network connections and routing table analysis
• telnet - TCP connectivity testing to specific ports
• route - Display and manipulate IP routing table
• ifconfig - Network interface configuration display
• arp - ARP cache display for network troubleshooting

🧠 Memory CMDB Tools (9/9 ✅ 100%)

🗄️ Enterprise SQLite-Based Persistent Memory System

• memory_get - Retrieve CI objects by key with automatic decryption
• memory_set - Store CI objects with hierarchical relationships
• memory_merge - Merge new data into existing CIs with validation
• memory_query - Pattern-based CI queries with wildcard support
• memory_clear - Clear all memory data (in-memory and SQLite database)
• memory_stats - Comprehensive memory usage and storage statistics
• memory_save - Manual persistence triggers for batch operations
• memory_rotate_key - Encryption key rotation with data re-encryption
• memory_migrate_from_filesystem - Legacy JSON format migration

🎯 Testing Achievements:

• ✅ 100% Tool Success Rate - All 9 tools comprehensively tested
• ✅ Enterprise Security - AES-256-CBC encryption with key rotation
• ✅ Data Integrity - 100% data recovery across container restarts
• ✅ Performance - Auto-save every 30 seconds with SQLite backend
• ✅ Migration Support - Seamless legacy data migration capability

🏗️ Proxmox Cluster Management (10/10 ✅ 100%)

• proxmox_list_nodes - Returns all nodes in Proxmox cluster
• proxmox_get_node_details - Detailed node information and metrics
• proxmox_list_vms - All virtual machines for a node
• proxmox_get_vm_details - VM configuration and status details
• proxmox_list_containers - All LXC containers for a node
• proxmox_get_container_details - Container configuration details
• proxmox_list_storage - Storage resources and utilization
• proxmox_list_networks - Network configuration and VLANs
• proxmox_cluster_resources - Complete cluster resource summary
• proxmox_get_metrics - Performance metrics for nodes/VMs

📡 SNMP Discovery Tools (12/12 ✅ 100%)

• snmp_create_session - Create SNMP session with target device
• snmp_close_session - Close an active SNMP session
• snmp_get - GET operation for specific OID values
• snmp_get_next - GETNEXT operation for OID traversal
• snmp_walk - WALK operation for OID subtrees
• snmp_table - Retrieve complete SNMP tables
• snmp_discover - Discover SNMP-enabled devices in network range
• snmp_device_inventory - Comprehensive device inventory via SNMP
• snmp_interface_discovery - Network interface discovery and analysis
• snmp_system_health - System health and performance metrics
• snmp_service_discovery - Running services and listening ports via SNMP
• snmp_network_topology - Network topology mapping using CDP/LLDP

🔐 Enterprise Credential Management (6/6 ✅ 100%)

• credentials_add - Add encrypted credentials (multiple types supported)
• credentials_get - Retrieve and decrypt stored credentials
• credentials_list - List all credentials (metadata only, secure)
• credentials_remove - Remove credentials from secure store
• credentials_rotate_key - Rotate encryption keys with re-encryption
• Credential Audit Log - Comprehensive audit trail for all credential operations

🖥️ Zabbix Monitoring Tools (7/7 ✅ 100%)

• zabbix_host_discover - List all monitored hosts
• zabbix_get_metrics - Retrieve host performance metrics
• zabbix_get_alerts - Retrieve active alerts and problems
• zabbix_get_inventory - Get detailed host inventory
• zabbix_get_problems - Retrieve current active problems
• zabbix_get_events - Retrieve historical events for audit/analysis
• zabbix_get_triggers - Retrieve and manage trigger configurations

Example: Discover Zabbix Hosts

curl -X POST http://localhost:3000/mcp \
  -H "Content-Type: application/json" \
  -d '{"method": "tools/call", "params": {"name": "zabbix_host_discover", "arguments": {"baseUrl": "http://localhost:8080", "username": "Admin", "password": "zabbix"}}}'

Example: Get Zabbix Host Metrics

curl -X POST http://localhost:3000/mcp \
  -H "Content-Type: application/json" \
  -d '{"method": "tools/call", "params": {"name": "zabbix_get_metrics", "arguments": {"baseUrl": "http://localhost:8080", "username": "Admin", "password": "zabbix", "hostName": "Zabbix server"}}}'

Example: Get Zabbix Alerts

curl -X POST http://localhost:3000/mcp \
  -H "Content-Type: application/json" \
  -d '{"method": "tools/call", "params": {"name": "zabbix_get_alerts", "arguments": {"baseUrl": "http://localhost:8080", "username": "Admin", "password": "zabbix"}}}'

Example: Get Zabbix Host Inventory

curl -X POST http://localhost:3000/mcp \
  -H "Content-Type: application/json" \
  -d '{"method": "tools/call", "params": {"name": "zabbix_get_inventory", "arguments": {"baseUrl": "http://localhost:8080", "username": "Admin", "password": "zabbix"}}}'

🔍 NMAP Scanning Tools (5/5 ✅ 100%)

• nmap_ping_scan - Host discovery without port scanning (-sn)
• nmap_tcp_connect_scan - TCP Connect scan for open ports (-sT)
• nmap_tcp_syn_scan - Stealth SYN scan with capability-based privileges (-sS)
• nmap_udp_scan - UDP port scanning with privilege escalation (-sU)
• nmap_version_scan - Service version detection with comprehensive probing (-sV)

🛡️ Advanced Security Implementation

Our NMAP tools implement capability-based security for privileged network operations while maintaining non-root execution:

Security Features:

• ✅ Linux Capabilities: NET_RAW, NET_ADMIN, NET_BIND_SERVICE for minimal privilege escalation
• ✅ Non-Root Execution: All tools run as mcpuser with restricted capabilities
• ✅ Container Security: Docker capability model prevents privilege escalation attacks
• ✅ Automatic Privilege Detection: Tools automatically detect and use appropriate scan methods

🎯 NMAP Usage Examples

# Host discovery (ping scan) - No privileges required
curl -X POST http://localhost:3000/mcp \
  -H "Content-Type: application/json" \
  -d '{"method": "tools/call", "params": {"name": "nmap_ping_scan", "arguments": {"target": "192.168.1.0/24"}}}'

# TCP Connect scan - Standard user privileges
curl -X POST http://localhost:3000/mcp \
  -H "Content-Type: application/json" \
  -d '{"method": "tools/call", "params": {"name": "nmap_tcp_connect_scan", "arguments": {"target": "scanme.nmap.org", "ports": "22,80,443"}}}'

# Stealth SYN scan - Uses capability-based privileges
curl -X POST http://localhost:3000/mcp \
  -H "Content-Type: application/json" \
  -d '{"method": "tools/call", "params": {"name": "nmap_tcp_syn_scan", "arguments": {"target": "172.20.0.22", "ports": "22,80,443,8080", "timing_template": 4}}}'

# UDP scan - Privileged operation with capability escalation
curl -X POST http://localhost:3000/mcp \
  -H "Content-Type: application/json" \
  -d '{"method": "tools/call", "params": {"name": "nmap_udp_scan", "arguments": {"target": "172.20.0.22", "ports": "53,161,514", "top_ports": 100}}}'

# Service version detection - Comprehensive probing
curl -X POST http://localhost:3000/mcp \
  -H "Content-Type: application/json" \
  -d '{"method": "tools/call", "params": {"name": "nmap_version_scan", "arguments": {"target": "172.20.0.22", "ports": "8080", "intensity": 7}}}'

📊 NMAP Scan Results

Recent validation testing achieved 100% success across all scan types:

# SYN Scan Results - Zabbix Server
Target: 172.20.0.22 (ports 22,80,443,8080)
Results: 1 open (8080/tcp), 3 closed
Service: nginx 1.26.2 on port 8080

# UDP Scan Results - Network Services
Target: 172.20.0.22 (ports 53,161,514)
Results: All ports filtered/closed
Scan completed in 3.08 seconds

# Version Detection Results
Port 8080/tcp: nginx 1.26.2
Confidence: 100%
Method: probe response analysis

🏗️ Proxmox Cluster Management (10/10 ✅ 100%)

• proxmox_list_nodes - Returns all nodes in Proxmox cluster
• proxmox_get_node_details - Detailed node information and metrics
• proxmox_list_vms - All virtual machines for a node
• proxmox_get_vm_details - VM configuration and status details
• proxmox_list_containers - All LXC containers for a node
• proxmox_get_container_details - Container configuration details
• proxmox_list_storage - Storage resources and utilization
• proxmox_list_networks - Network configuration and VLANs
• proxmox_cluster_resources - Complete cluster resource summary
• proxmox_get_metrics - Performance metrics for nodes/VMs

📡 SNMP Device Discovery (12/12 ✅ 100%)

• snmp_create_session - Create SNMP session with authentication
• snmp_close_session - Close SNMP session and cleanup
• snmp_get - Retrieve specific OID values
• snmp_get_next - GETNEXT operation for OID traversal
• snmp_walk - Walk OID subtrees for bulk data
• snmp_table - Retrieve structured SNMP tables
• snmp_discover - Network-wide SNMP device discovery
• snmp_device_inventory - Complete device hardware/software inventory
• snmp_interface_discovery - Network interface discovery and analysis
• snmp_system_health - System health and performance metrics
• snmp_service_discovery - Discover running services and listening ports
• snmp_network_topology - Map network topology using CDP/LLDP protocols

🔐 Enterprise Credential Management (5/5 ✅ 100%)

• credentials_add - Add encrypted credentials (multiple types supported)
• credentials_get - Retrieve and decrypt stored credentials
• credentials_list - List all credentials (metadata only, secure)
• credentials_remove - Remove credentials from secure store
• credentials_rotate_key - Rotate encryption keys with re-encryption

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📊 MCP Resources & Prompts

📋 Available Resources (1 resource)

• Credential Store - Unified encrypted credential management and access

🧠 Infrastructure Analysis Prompts (5 prompts)

• cmdb_ci_classification - ITIL v4 compliant CI classification guidance
• network_topology_analysis - Expert network topology analysis and recommendations
• infrastructure_health_assessment - Performance and capacity planning analysis
• compliance_gap_analysis - Security and compliance framework assessment
• incident_analysis_guidance - Structured incident response frameworks

---

🚀 Production Deployment

🐳 Docker Deployment

# Production deployment with all components (from repo root)
docker compose -f docker/docker-compose.yml up -d

# Scale for high availability
docker compose -f docker/docker-compose.yml up -d --scale mcp-server=3

# Monitor health and logs
docker compose -f docker/docker-compose.yml logs -f mcp-server
curl http://localhost:6270/health

🔧 Configuration Options

// Environment variables for production
MCP_TRANSPORT_MODE = http; // Transport: http, stdio, websocket
MCP_SERVER_PORT = 3000; // HTTP server port
MCP_LOG_LEVEL = info; // Logging: debug, info, warn, error
MCP_MAX_CONNECTIONS = 100; // Connection limits
MCP_REQUEST_TIMEOUT = 30000; // Request timeout (ms)
MCP_RATE_LIMITING = true; // Enable rate limiting
MCP_SECURITY_MODE = standard; // Security level

📈 Health Monitoring

# Health endpoint
GET /health
{
  "status": "healthy",
  "uptime": "2h 15m 30s",
  "tools": { "total": 61, "loaded": 61, "dynamic": true },
  "memory": { "used": "45MB", "available": "955MB" },
  "hot_reload": { "enabled": true, "modules": 7 }
}

# Metrics endpoint
GET /metrics
# Prometheus-compatible metrics for monitoring

---

🎯 Live Testing Results

Our comprehensive testing against real production infrastructure achieved:

🏆 Overall Results

• ✅ 100% Success Rate (61/61 tools working including dynamic management)
• ✅ Production Validated - Tested against live 6-node Proxmox cluster with hot-reload capabilities
• ✅ Zero Critical Failures - All core infrastructure tools working including privileged operations
• ✅ Enterprise Ready - Full credential management, hot-reload, and secure privilege escalation
• 🔥 Revolutionary Features - World's first dynamic MCP registry with runtime module management

🔬 Testing Environment

• Production Proxmox Cluster: 6 nodes, 45+ VMs, multiple storage backends
• Live Network Infrastructure: SNMP-enabled devices, switches, routers
• Zabbix Test Environment: Docker-based test server with sample data
• Security Testing: Credential encryption, audit trails, input validation
• Hot-Reload Testing: Runtime module loading, file watchers, database persistence

📊 Detailed Results by Category

| Perfect Categories (100%) | Revolutionary Features | | ------------------------------------- | -------------------------------------- | | ✅ Registry Management (5/5) NEW! | 🔥 Runtime module loading | | ✅ Memory CMDB (8/8) | 🔥 Hot-reload with file watchers | | ✅ Proxmox Integration (10/10) | 🔥 SQLite registry database | | ✅ Network Tools (9/9) | 🔥 Self-managing tools | | ✅ SNMP Discovery (12/12) | 🔥 Zero-downtime updates | | ✅ Zabbix Monitoring (7/7) | 🔥 Real-time analytics | | ✅ NMAP Scanning (5/5) | 🔥 Enterprise security with hot-reload | | ✅ Credentials (5/5) | |

View Complete Testing Report →

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🎯 Real-World Use Cases

🏢 Enterprise Infrastructure Discovery

# Discover complete Proxmox cluster
curl -X POST localhost:6270/mcp -d '{
  "method": "tools/call",
  "params": {"name": "proxmox_cluster_resources"}
}'

# SNMP device inventory across network
curl -X POST localhost:6270/mcp -d '{
  "method": "tools/call",
  "params": {"name": "snmp_discover", "arguments": {"targetRange": "192.168.1.0/24"}}
}'

🔍 AI-Powered Infrastructure Analysis

# Get expert network topology analysis
curl -X POST localhost:6270/mcp -d '{
  "method": "prompts/get",
  "params": {"name": "network_topology_analysis", "arguments": {
    "networkData": "...", "subnet": "192.168.1.0/24"
  }}
}'

# ITIL v4 compliant CI classification
curl -X POST localhost:3000/mcp -d '{
  "method": "prompts/get",
  "params": {"name": "cmdb_ci_classification", "arguments": {
    "deviceType": "server", "discoveredData": "..."
  }}
}'

📊 Centralized CMDB Management

# Store discovered infrastructure in CMDB
curl -X POST localhost:3000/mcp -d '{
  "method": "tools/call",
  "params": {"name": "memory_set", "arguments": {
    "key": "ci:server:web01",
    "value": {"type": "server", "role": "web", "status": "active"}
  }}
}'

---

🛡️ Security & Compliance

🔐 Enterprise-Grade Security

• Encrypted Credential Storage - AES-256 encryption for all stored credentials
• Audit Trails - Complete logging of all credential access and modifications
• Input Sanitization - Advanced validation for all tool parameters
• Rate Limiting - DDoS protection and resource management
• Non-Root Execution - Container security best practices with capability-based privilege escalation
• Linux Capabilities - Minimal privilege model for network operations (NET_RAW, NET_ADMIN, NET_BIND_SERVICE)

⚡ Capability-Based Security Model

Our innovative security approach provides enterprise-grade functionality while maintaining strict security boundaries:

# Dockerfile - Minimal privilege escalation
RUN setcap cap_net_raw,cap_net_admin,cap_net_bind_service+eip /usr/bin/nmap
USER mcpuser  # Non-root execution

# docker-compose.yml - Container capabilities
services:
  mcp-server:
    cap_add:
      - NET_RAW # Raw socket access for SYN/UDP scans
      - NET_ADMIN # Network admin for advanced operations
      - NET_BIND_SERVICE # Bind to privileged ports

Security Benefits:

• ✅ Principle of Least Privilege: Only necessary capabilities granted
• ✅ Attack Surface Minimization: No full root access required
• ✅ Container Security: Docker security model maintained
• ✅ Audit Compliance: All privileged operations logged and traceable

📋 Compliance Features

• ITIL v4 Standards - Built-in CMDB classification and CI management
• SOX/PCI/HIPAA Ready - Compliance gap analysis prompts
• Change Management - Structured incident response frameworks
• Access Controls - Role-based credential management

---

📚 Documentation

The Incredible Journey

Vibe-Coding Journey - The Incredible Vibe Coding Journey

📖 Complete Documentation

• Architecture Guide - System architecture and design patterns
• Deployment Guide - Production deployment with capability-based security
• Testing Guide - Comprehensive testing procedures and NMAP validation
• Security Implementation - Detailed capability-based security model
• Usage Examples - Complete NMAP scanning examples and workflows
• MCP Compliance - MCP protocol implementation details
• Environment Variables & Settings - Comprehensive list of environment variables, defaults, and usage examples

📋 Development Resources

• Migration Guide - Upgrading from legacy versions
• Live Testing Report - Complete testing results
• VS Code Integration - IDE integration guide

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📚 Complete Documentation

| Document | Purpose | | -------- | ------- | | Backward Compatibility Guide | Start here if integrating with ServiceNow or legacy 2025-03-26 clients. Includes configuration, integration patterns, and troubleshooting. | | Quick Reference | One-page cheat sheet for operators. Configuration matrix, test commands, common issues. | | HTTP Transport Architecture | Deep dive into session management, SSL/TLS, OAuth, and transport lifecycle. | | Environment Variables | Complete reference for all configuration options. | | Multi-Transport Architecture | Overview of HTTP, Stdio, and AMQP transports and how to mix them. |

---

🤝 Contributing

We welcome contributions! This project represents the culmination of extensive development and testing to create a production-ready MCP server.

Development Setup

git clone https://github.com/nagual69/mcp-open-discovery.git
cd mcp-open-discovery
npm install
npm run dev

Testing

# Run comprehensive test suite
npm test

# Live infrastructure testing
npm run test:live

# MCP compliance testing
npm run test:mcp

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📄 License

Mozilla Public License 2.0 (MPL-2.0) — see LICENSE for details.

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🙏 Acknowledgments

• Anthropic - For the Model Context Protocol specification
• MCP SDK Team - For the excellent official SDK
• Community - For testing, feedback, and contributions

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� Revolutionary Dynamic Registry • 100% Success Rate • World's First Hot-Reload MCP Server �

Built with ❤️ for the future of AI capability management

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