OPNsense FAQs

Question 1

How does OPNsense MCP Server integrate with developer tools?

Accepted Answer

It is specifically designed for seamless integration with Cursor IDE and other MCP-compatible IDEs. This allows developers to discover and invoke OPNsense tools directly within their preferred development environment.

Question 2

How is authentication handled for secure operations?

Accepted Answer

The server employs JWT-based authentication to ensure secure operations. All sensitive credentials, such as OPNsense API keys and JWT secrets, must be securely stored in `.env` files or `~/.opnsense-env`.

Question 3

Does this server use a traditional HTTP REST API?

Accepted Answer

No, unlike typical web services, the OPNsense MCP Server communicates via the Model Context Protocol (MCP), which uses JSON-RPC over stdio. It does not expose HTTP REST endpoints.

Question 4

What is the OPNsense MCP Server?

Accepted Answer

It's a server providing interactive OPNsense API functionality through a Model Context Protocol (MCP) interface, utilizing JSON-RPC over stdio for direct network and system management, rather than HTTP REST.

Question 5

What kind of OPNsense data can I access using this server?

Accepted Answer

You can retrieve comprehensive OPNsense data including IPv4/IPv6 ARP tables, DHCPv4/DHCPv6 lease information, detailed system status (CPU, memory, filesystem usage), firewall rules, and LLDP neighbor tables.

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