How do I connect OPNSense MCP Server to Claude?

Run `claude mcp add opnsensemcp -- npx -y tsx scripts/test/test-nat-ssh.ts` in Claude Code, or add the same command and arguments under mcpServers in Cursor's mcp.json or Claude Desktop's claude_desktop_config.json, then restart the client. The blocks above are ready to paste.

Is OPNSense MCP Server free?

The listed licence is MIT. Check the upstream terms for permitted use and commercial requirements; a public repository does not by itself mean the software is free or open source. Connected APIs and hosted services may have separate charges.

What can OPNSense MCP Server do?

OPNSense MCP Server documents 18 tools to the agent, including arp_list, backup_create, firewall_apply_changes. The descriptions above come from project documentation. A live handshake does not test individual tool behavior.

OPNSenseMCP

Unclaimed

by vespo92

MCP Server for OPNSense to act as IaC proxy

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01 / Choose your client

02 / Before you connect

Authentication is not specified. Check the project instructions before connecting.

Install the runtime required by the project and make it available to your client.

Project instructionsEnvironment variable names (optional)

Use names from the project instructions, separated by commas. Enter names only, never secret values.

03 / Add the configuration

Source: generated from public install instructions

claude mcp add --transport stdio 'opnsensemcp' -- 'npx' '-y' 'tsx' 'scripts/test/test-nat-ssh.ts'

Run in your terminal after replacing any placeholders.

04 / Check it in your client

Open your client’s MCP settings and confirm the server connects and lists its tools. A copied configuration does not confirm a working connection.

Is this your MCP server?

This listing was auto-indexed from the public record. Claim it to edit the page, set compatibility and unlock growth tools. Takes under two minutes.

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Security profile

Claimed and verified servers get a weekly static scan that shows what the code can reach: external services, environment variables, shell commands, agent configuration folders, plus any dependencies with known advisories. Claim this listing to get one. How the security profile works

18 of 18 tools

Documented tools (18)

From project documentation. A server handshake does not verify each tool’s description or behavior.

arp_list

List ARP table entries

backup_create

Create configuration backup

firewall_apply_changes

Apply pending changes

firewall_create_rule

Create a new rule

firewall_delete_rule

Delete a rule

firewall_list_rules

List all firewall rules

firewall_update_rule

Update existing rule

interface_list

List network interfaces

nat_analyze_config

Analyze NAT configuration

nat_create_outbound_rule

Create NAT rule

nat_fix_dmz

Fix DMZ NAT issues

nat_list_outbound

List outbound NAT rules

nat_set_mode

Set NAT mode

routing_diagnostics

Diagnose routing issues

routing_fix_all

Auto-fix routing problems

service_restart

Restart a service

system_execute_command

Execute CLI command

vlan_create

Create VLAN

Tool change history

Compared across complete checks of the same configuration. Tools were listed, not invoked. Input-schema changes are not measured here.

No complete tool checks yet.

FAQ

Questions about OPNSense MCP Server

How do I connect OPNSense MCP Server to Claude?: Run `claude mcp add opnsensemcp -- npx -y tsx scripts/test/test-nat-ssh.ts` in Claude Code, or add the same command and arguments under mcpServers in Cursor's mcp.json or Claude Desktop's claude_desktop_config.json, then restart the client. The blocks above are ready to paste.
Is OPNSense MCP Server free?: The listed licence is MIT. Check the upstream terms for permitted use and commercial requirements; a public repository does not by itself mean the software is free or open source. Connected APIs and hosted services may have separate charges.
What can OPNSense MCP Server do?: OPNSense MCP Server documents 18 tools to the agent, including arp_list, backup_create, firewall_apply_changes. The descriptions above come from project documentation. A live handshake does not test individual tool behavior.