Apstra Server

A Model Context Protocol (MCP) server that provides tools for interacting with Juniper Apstra Fabric Manager APIs. Enables Claude and other MCP clients to manage datacenter network infrastructure through natural language commands.

Features

• Blueprint Management: Create, retrieve, and delete blueprint configurations
• Infrastructure Queries: Get rack, routing zone, and system information
• Network Provisioning: Create virtual networks with advanced configuration options and remote gateways
• Connectivity Templates: Manage connectivity templates and application endpoint assignments
• Policy Management: Apply and remove connectivity template policies from application endpoints
• Configuration Management: Check deployment status and deploy configurations
• Protocol Monitoring: Monitor BGP and other protocol sessions
• Anomaly Detection: Retrieve and analyze blueprint anomalies
• Native Streaming Support: Real-time updates with Server-Sent Events

Quick Start

Local Usage (stdio)

# Create config file
cp apstra_config_sample.json apstra_config.json
# Edit with your Apstra server details

# Run with stdio transport
python3 apstra_mcp.py -t stdio -f apstra_config.json

Network Deployment (Streamable HTTP)

Docker (Recommended)

# Clone and configure
git clone <this-repo>
cd apstra-mcp-server
cp apstra_config_sample.json apstra_config.json
# Edit config with your Apstra details

# Start HTTP streaming server
docker-compose up -d

Direct Python

# Install dependencies
pip install -r requirements.txt

# Start streamable HTTP server
python3 apstra_mcp.py -t streamable-http -H 0.0.0.0 -p 8080 -f apstra_config.json

Installation

Prerequisites

• Python 3.7+
• Access to Juniper Apstra server
• Valid Apstra credentials

Dependencies

pip install -r requirements.txt

Available Tools (21 total)

Health & Status Tools (2 tools)

• health() - Server health check and Apstra connectivity status
• formatting_guidelines() - Get formatting guidelines for network data presentation

Query Tools (12 tools)

• get_bp() - Get blueprint information
• get_racks(blueprint_id) - Get rack information
• get_rz(blueprint_id) - Get routing zones
• get_vn(blueprint_id) - Get virtual networks
• get_ct(blueprint_id) - Get connectivity templates
• get_app_ep(blueprint_id) - Get application endpoints for connectivity templates
• get_system_info(blueprint_id) - Get system/device information
• get_protocol_sessions(blueprint_id) - Get protocol sessions
• get_anomalies(blueprint_id) - Get blueprint anomalies
• get_remote_gw(blueprint_id) - Get remote gateways
• get_diff_status(blueprint_id) - Get deployment diff status
• get_templates() - Get available templates

Management Tools (3 tools)

• deploy(blueprint_id, description, staging_version) - Deploy configurations
• delete_blueprint(blueprint_id) - Delete blueprints
• apply_ct_policies(blueprint_id, application_points) - Apply/remove connectivity template policies to application endpoints

Create Tools (4 tools)

• create_vn(blueprint_id, security_zone_id, vn_name, virtual_gateway_ipv4, ipv4_subnet, ...) - Create virtual networks with advanced configuration options
• create_remote_gw(blueprint_id, gw_ip, gw_asn, gw_name, local_gw_nodes, ...) - Create remote gateways
• create_datacenter_blueprint(blueprint_name, template_id) - Create datacenter blueprints
• create_freeform_blueprint(blueprint_name) - Create freeform blueprints

Security Model

stdio Transport (Default)

• Secure by default with no network exposure
• Uses configuration file credentials
• Ideal for Claude Desktop integration

streamable-http Transport

• Network-accessible with native FastMCP streaming capabilities
• Automatic SSE upgrades for real-time updates
• Single container deployment

Claude Desktop Configuration

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "apstra": {
      "command": "uv",
      "args": [
        "run",
        "--with",
        "fastmcp,httpx",
        "python3",
        "/path/to/apstra_mcp.py",
        "-f",
        "/path/to/apstra_config.json"
      ]
    }
  }
}

Update the paths to match your installation directory.

Usage Examples

With Claude Desktop

• "Show me all blueprints in the system"
• "Create a virtual network called 'web-tier' with gateway 192.168.1.1 and subnet 192.168.1.0/24"
• "Get all connectivity templates in blueprint X"
• "Apply connectivity template policy Y to interface Z"
• "Show me application endpoints for connectivity templates"
• "Deploy the staging configuration"
• "Check for any anomalies in blueprint X"

Streaming HTTP Client

The server exposes native FastMCP endpoints on /mcp/* with automatic SSE upgrades for streaming responses.

Architecture

• FastMCP Framework: Native transport system with automatic SSE streaming
• Config-based Authentication: Simple stateless operation with direct Apstra API auth
• Single Container: HTTP server on port 8080 with streamable-http transport

Documentation

• DEPLOYMENT.md - Complete deployment guide with examples
• CLAUDE.md - Technical implementation details and development guide

Troubleshooting

• Authentication fails: Check credentials and server connectivity
• Tools not appearing: Verify server startup in Claude Desktop logs
• Transport errors: Ensure FastMCP version compatibility
• Docker issues: Check docker-compose logs

License

This project is provided as-is for educational and demonstration purposes.

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Blog Post: MCP for Datacenter Networks