Nautobot MCP Server v2
Enhanced Nautobot 3.1.0 integration for NetClaw with GraphQL reads, REST writes, ITSM-gated changes, and live-vs-SoT reconciliation. Provides 13 tools covering devices, interfaces, VLANs, prefixes, IP addresses, cables, raw GraphQL, write operations, and reconciliation.
README
Nautobot MCP Server v2
Enhanced Nautobot 3.1.0 integration for NetClaw — GraphQL reads, REST writes, ITSM-gated changes, live-vs-SoT reconciliation.
Replaces the v1 mcp-nautobot (5 IPAM-only REST tools) with 13 tools covering devices, interfaces, VLANs, prefixes, IP addresses, cables, raw GraphQL, write operations, and reconciliation.
Architecture
- Reads: GraphQL API (
POST /api/graphql/) — efficient field selection, nested relationships - Writes: REST API (
POST/PATCH /api/dcim/*,/api/ipam/*) — Nautobot 3.1.0 has no GraphQL mutations - Transport: stdio (FastMCP)
Tools (13)
Read Tools (7) — GraphQL
| Tool | Description |
|---|---|
nautobot_get_devices |
Query devices with filters (name, location, role, platform, status) |
nautobot_get_interfaces |
Query interfaces with VLAN assignments, IPs, cable peer |
nautobot_get_vlans |
Query VLANs with locations, groups, tenants |
nautobot_get_prefixes |
Query IP prefixes from IPAM |
nautobot_get_ip_addresses |
Query IP addresses with interface/device assignments |
nautobot_get_cables |
Query cables with resolved endpoint names |
nautobot_graphql |
Execute arbitrary GraphQL queries (plugins, custom fields) |
Write Tools (5) — REST API, ITSM-gated
| Tool | Description |
|---|---|
nautobot_create_ip_address |
Create IP address, optionally assign to interface |
nautobot_create_vlan |
Create VLAN with location association |
nautobot_create_prefix |
Create IP prefix |
nautobot_update_object |
Update any object (device, interface, IP, VLAN, prefix, cable) |
nautobot_reconcile |
Compare live device state against Nautobot SoT |
Utility (1)
| Tool | Description |
|---|---|
nautobot_test_connection |
Verify GraphQL and REST connectivity |
Environment Variables
| Variable | Required | Default | Description |
|---|---|---|---|
NAUTOBOT_URL |
Yes | — | Nautobot base URL (e.g., https://nautobot.example.com) |
NAUTOBOT_TOKEN |
Yes | — | API token with read+write permissions |
NAUTOBOT_VERIFY_SSL |
No | false |
Verify SSL certificates |
NAUTOBOT_TIMEOUT |
No | 30 |
Request timeout in seconds |
ITSM_ENABLED |
No | false |
Enable ITSM gating for writes |
ITSM_LAB_MODE |
No | true |
Bypass ITSM gating for lab use |
Installation
cd mcp-servers/nautobot-mcp-v2/
pip install -r requirements.txt
Standalone Test
export NAUTOBOT_URL="https://nautobot.example.com"
export NAUTOBOT_TOKEN="your-token"
export NAUTOBOT_VERIFY_SSL="false"
python3 -u server.py
Files
| File | Purpose |
|---|---|
server.py |
FastMCP server with all 13 tool definitions |
nautobot_client.py |
GraphQL + REST client, ID resolution, error handling |
reconcile.py |
Interface reconciliation diff engine |
requirements.txt |
Python dependencies |
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