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network-mcp

Give AI direct access to your network devices. 35 MCP tools, multi-vendor, one interface.

Stop writing Netmiko scripts. Connect Claude, ChatGPT, or any MCP-compatible AI to your routers, switches, and firewalls — and let it run show commands, check health, calculate subnets, discover topology, and manage configs through natural language.

You: "Check the health of all my devices"
Claude: [calls health_check_all] → 6 devices healthy, Switch-R2 has 2 interfaces down

What is this?

An MCP (Model Context Protocol) server that gives AI assistants real-time access to network devices. Built for network engineers who want to automate without writing boilerplate.

Supported platforms:

  • Cisco IOS-XE (routers, switches)

  • Nokia SR Linux

  • FRRouting (FRR)

  • Juniper Junos

  • Aruba AOS-CX

  • Linux hosts

Related MCP server: MCP-Telecom

Quick Start

1. Install

git clone https://github.com/E-Conners-Lab/MCP-DEMO-LAB.git
cd network-mcp
python -m venv .venv && source .venv/bin/activate
pip install -r requirements.txt

2. Configure devices

cp .env.example .env
# Edit .env with your device IPs and credentials

3. Try it instantly (no lab required)

# Demo mode returns realistic mock data — no devices needed
DEMO_MODE=true python network_mcp_server.py

4. Connect to Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "network": {
      "command": "/path/to/network-mcp/.venv/bin/python",
      "args": ["/path/to/network-mcp/network_mcp_server.py"]
    }
  }
}

Restart Claude Desktop. You now have 35 network tools available.

5. Try with a real lab (5 minutes)

# Spin up 2 FRR routers with containerlab
cd quickstart && sudo containerlab deploy -t topology.clab.yml

Tools

Device Operations

Tool

Description

get_devices

List all devices in inventory

send_command

Run show commands on any device

send_config

Push configuration changes

health_check

Check device health (CPU, memory, interfaces)

health_check_all

Health check all devices in parallel

backup_config

Backup running configuration

compare_configs

Diff two config backups

rollback_config

Restore a previous config

Network Intelligence

Tool

Description

discover_topology

LLDP-based topology discovery

get_routing_table

View routing tables

get_neighbors

BGP/OSPF neighbor status

get_arp_table

ARP table lookup

get_mac_table

MAC address table

ping_sweep

Sweep a subnet for reachable hosts

traceroute

Trace path to destination

Calculators (no devices needed)

Tool

Description

calculate_tunnel_mtu

Optimal MTU/MSS for VPN tunnels

calculate_subnet_info

Subnet details from CIDR notation

split_network

VLSM subnet splitting

convert_netmask

CIDR to dotted decimal conversion

SNMP & Monitoring

Tool

Description

snmp_get_oid

SNMP GET for specific OIDs

snmp_walk_oid

SNMP WALK subtrees

snmp_poll_metrics

Poll interface/CPU/memory metrics

NETCONF

Tool

Description

get_interfaces_netconf

Interface data via NETCONF

get_bgp_neighbors_netconf

BGP state via NETCONF

get_netconf_capabilities

Device NETCONF capabilities

Configuration Management

Tool

Description

compliance_check

Check device against compliance templates

full_network_test

End-to-end network validation

See all 35 tools →

Architecture

┌─────────────────────────────────────────┐
│  AI Assistant (Claude, ChatGPT, etc.)   │
└────────────────┬────────────────────────┘
                 │ MCP Protocol (stdio/SSE)
┌────────────────▼────────────────────────┐
│  network_mcp_server.py                  │
│  FastMCP server + tool registry         │
└────────────────┬────────────────────────┘
                 │
┌────────────────▼────────────────────────┐
│  mcp_tools/                             │
│  ├── device.py      (9 tools)           │
│  ├── calculators.py (6 tools)           │
│  ├── topology.py    (6 tools)           │
│  ├── config.py      (8 tools)           │
│  ├── snmp.py        (5 tools)           │
│  ├── netconf.py     (4 tools)           │
│  ├── compliance.py  (7 tools)           │
│  └── ... (10 modules, 35 tools total)   │
└────────────────┬────────────────────────┘
                 │
┌────────────────▼────────────────────────┐
│  core/                                  │
│  ├── connection.py   (Netmiko/Scrapli)  │
│  ├── parser.py       (NTC/Genie)        │
│  ├── mtu_calculator.py                  │
│  └── subnet_calculator.py              │
└────────────────┬────────────────────────┘
                 │ SSH / NETCONF / SNMP
┌────────────────▼────────────────────────┐
│  Network Devices                        │
│  Cisco · Nokia · FRR · Juniper · Aruba  │
└─────────────────────────────────────────┘

Project Structure

network-mcp/
├── network_mcp_server.py    # MCP server entry point
├── config/
│   └── devices.py           # Device inventory (env var overrides)
├── mcp_tools/               # All MCP tool implementations
│   ├── device.py            # Core device operations
│   ├── calculators.py       # MTU/subnet calculators
│   ├── topology.py          # LLDP discovery
│   ├── config.py            # Config backup/compare/rollback
│   ├── snmp.py              # SNMP polling
│   ├── netconf.py           # NETCONF operations
│   ├── compliance.py        # Compliance checking
│   └── ...                  # 10 modules, 35 tools total
├── core/                    # Connection and parsing libraries
├── templates/               # Jinja2 config templates (FRR, IOS-XE)
├── quickstart/              # Containerlab quick-start lab
└── tests/                   # Test suite

Configuration

All configuration is via environment variables (or .env file):

# Device credentials
DEVICE_USERNAME=admin
DEVICE_PASSWORD=admin

# Device IPs (override defaults)
R1_HOST=10.255.255.11
R2_HOST=10.255.255.12

# Optional features
DEMO_MODE=true              # Mock data, no real devices
USE_NETBOX=true             # Pull inventory from NetBox
NETBOX_URL=http://localhost:8000
NETBOX_TOKEN=your-token

Requirements

  • Python 3.11+

  • Network devices reachable via SSH/NETCONF/SNMP

  • Claude Desktop or any MCP-compatible client

Contributing

See CONTRIBUTING.md for guidelines.

License

MIT License - see LICENSE for details.

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