# io.github.felhen-ai/mcp-pfsense (pypi · mcp-pfsense)

Manage pfSense firewalls through AI assistants — rules, DHCP, DNS, and more

- Trust score: 62/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-04

## Components

- pypi · `mcp-pfsense`: 62/100 (this document), [markdown](https://verifymcp.io/servers/felhen-ai-mcp-pfsense/mcp-pfsense.md), [page](https://verifymcp.io/servers/felhen-ai-mcp-pfsense/mcp-pfsense)

## Channel facts

- Registry: `pypi`
- Package: `mcp-pfsense`
- Version: `0.3.1`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-04.

- **Supply Chain Security**: 50/100
  - Malware scan not yet available for this package.
  - No known CVEs affecting this package version or its production dependencies.
  - Runs hatchling.build at install time, a recognised build step with no custom scripting around it.
  - 0 of 28 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 97/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to felhen-ai/mcp-pfsense).
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 0 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 72/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 990 tokens (~49/item across 20 items; 20 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 71/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 75/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - 0 of 3 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "delete_firewall_rule" implies "delete" and declares no destructiveHint at all, which the MCP spec reads as destructive by default.
  - An AI judge read all 21 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

**Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

## Install

### How do I install the io.github.felhen-ai/mcp-pfsense server?

io.github.felhen-ai/mcp-pfsense runs locally as a PyPI package, launched with uvx mcp-pfsense. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add felhen-ai-mcp-pfsense -- uvx mcp-pfsense
```

### Cursor

```json
{
  "mcpServers": {
    "felhen-ai-mcp-pfsense": {
      "command": "uvx",
      "args": [
        "mcp-pfsense"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "felhen-ai-mcp-pfsense": {
      "command": "uvx",
      "args": [
        "mcp-pfsense"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add felhen-ai-mcp-pfsense -- uvx mcp-pfsense
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "felhen-ai-mcp-pfsense": {
      "type": "local",
      "command": [
        "uvx",
        "mcp-pfsense"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add felhen-ai-mcp-pfsense --command uvx --arg mcp-pfsense
```

### Hermes

```yaml
mcp_servers:
  felhen-ai-mcp-pfsense:
    command: "uvx"
    args: ["mcp-pfsense"]
```

### Netclaw

```json
{
  "McpServers": {
    "felhen-ai-mcp-pfsense": {
      "Transport": "stdio",
      "Command": "uvx",
      "Arguments": [
        "mcp-pfsense"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add felhen-ai-mcp-pfsense -t stdio -c uvx -a mcp-pfsense
```

### Other

```json
{
  "mcpServers": {
    "felhen-ai-mcp-pfsense": {
      "command": "uvx",
      "args": [
        "mcp-pfsense"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-11-04 (score 62)

First indexed and scored.

## MCP tools (20)

### `get_system_status` (~26 tokens)

Get pfSense system status including version, CPU, memory, uptime, and temperature.

### `get_interfaces` (~17 tokens)

List all network interfaces with status and configuration.

Output parameters:

- `result` (array)

### `list_firewall_rules` (~24 tokens)

List firewall rules, optionally filtered by interface.

Input parameters:

- `interface`

Output parameters:

- `result` (array)

### `add_firewall_rule` (~113 tokens)

Add a firewall rule. Type is 'pass', 'block', or 'reject'.

The rule is staged (not active) until apply_changes('firewall') is called
or apply=true is passed here.

Input parameters:

- `apply` (boolean)
- `descr` (string)
- `destination` (string)
- `dstport`
- `interface` (string, required)
- `ipprotocol` (string)
- `protocol`
- `source` (string)
- `type` (string, required)

### `delete_firewall_rule` (~71 tokens)

Delete a firewall rule by its ID (the `id` from list_firewall_rules). Requires confirm=true.

Staged until apply_changes('firewall') is called or apply=true is passed.

Input parameters:

- `apply` (boolean)
- `confirm` (boolean)
- `rule_id` (integer, required)

### `list_firewall_aliases` (~24 tokens)

List firewall aliases (IP groups, port groups, URL lists).

Output parameters:

- `result` (array)

### `list_dhcp_leases` (~26 tokens)

List active DHCP leases showing IP, MAC, hostname, and lease times.

Output parameters:

- `result` (array)

### `list_dhcp_static_mappings` (~59 tokens)

List DHCP static mappings (IP reservations), optionally filtered by interface.

Each mapping carries `parent_id` (its DHCP server / interface) — pass that as
\`interface` to delete_dhcp_static_mapping.

Input parameters:

- `interface`

Output parameters:

- `result` (array)

### `add_dhcp_static_mapping` (~85 tokens)

Create a DHCP static mapping (IP reservation) for a MAC address.

Staged until apply_changes('dhcp') is called or apply=true is passed.

Input parameters:

- `apply` (boolean)
- `descr` (string)
- `hostname` (string)
- `interface` (string, required)
- `ipaddr` (string, required)
- `mac` (string, required)

### `delete_dhcp_static_mapping` (~105 tokens)

Delete a DHCP static mapping. Requires confirm=true.

\`interface` is the mapping's DHCP server — the `parent_id` value returned by
list_dhcp_static_mappings; `mapping_id` is its `id` there. Staged until
apply_changes('dhcp') is called or apply=true is passed.

Input parameters:

- `apply` (boolean)
- `confirm` (boolean)
- `interface` (string, required)
- `mapping_id` (integer, required)

### `list_dns_host_overrides` (~21 tokens)

List DNS Resolver host overrides (local DNS entries).

Output parameters:

- `result` (array)

### `add_dns_host_override` (~73 tokens)

Create a DNS host override entry in Unbound DNS Resolver.

Staged until apply_changes('dns') is called or apply=true is passed.

Input parameters:

- `apply` (boolean)
- `descr` (string)
- `domain` (string, required)
- `host` (string, required)
- `ip` (string, required)

### `delete_dns_host_override` (~60 tokens)

Delete a DNS host override by ID. Requires confirm=true.

Staged until apply_changes('dns') is called or apply=true is passed.

Input parameters:

- `apply` (boolean)
- `confirm` (boolean)
- `override_id` (integer, required)

### `get_pending_changes` (~39 tokens)

Check whether a subsystem ('firewall', 'dhcp' or 'dns') has staged, unapplied changes.

Input parameters:

- `subsystem` (string, required)

### `apply_changes` (~74 tokens)

Apply ALL staged changes of a subsystem ('firewall', 'dhcp' or 'dns'). Requires confirm=true.

This reloads the subsystem, activating every pending change — including any
a human staged in the pfSense WebGUI and has not reviewed yet.

Input parameters:

- `confirm` (boolean)
- `subsystem` (string, required)

### `get_gateway_status` (~22 tokens)

Get gateway status including latency, packet loss, and online state.

Output parameters:

- `result` (array)

### `get_arp_table` (~24 tokens)

Get ARP table showing connected devices (IP, MAC, interface).

Output parameters:

- `result` (array)

### `list_services` (~16 tokens)

List all services and their running status.

Output parameters:

- `result` (array)

### `restart_service` (~32 tokens)

Restart a service by name. Requires confirm=true.

Input parameters:

- `confirm` (boolean)
- `name` (string, required)

### `get_firewall_logs` (~67 tokens)

Read-only view of recent firewall log entries.

Each entry contains its ID and raw log text from pfrest. `limit` caps the
number of entries (default 50). This tool only reads logs; it never writes
to the firewall.

Input parameters:

- `limit` (integer)

Output parameters:

- `result` (array)

## Diagnostics

Captured diagnostic sections: Provenance, Install scripts, Dependencies. The full working is on the page: https://verifymcp.io/servers/felhen-ai-mcp-pfsense/mcp-pfsense#diagnostics

## Score history

- 2026-11-04: 62

## Common questions

### What is the io.github.felhen-ai/mcp-pfsense server?

io.github.felhen-ai/mcp-pfsense is listed in the public MCP registry as io.github.felhen-ai/mcp-pfsense. Manage pfSense firewalls through AI assistants, rules, DHCP, DNS, and more. This page covers its PyPI package (mcp-pfsense).

### Is the io.github.felhen-ai/mcp-pfsense server safe to use?

io.github.felhen-ai/mcp-pfsense scores 62 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 4 November 2026. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the io.github.felhen-ai/mcp-pfsense server expose?

io.github.felhen-ai/mcp-pfsense exposes 20 tools: get_system_status, get_interfaces, list_firewall_rules, add_firewall_rule, delete_firewall_rule, and 15 more. Their descriptions and schemas cost roughly 978 tokens of context every time the server is loaded.

### Is the io.github.felhen-ai/mcp-pfsense server still maintained?

io.github.felhen-ai/mcp-pfsense is still listed as active in the MCP registry. We last reached this channel on 4 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the io.github.felhen-ai/mcp-pfsense server under?

io.github.felhen-ai/mcp-pfsense declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- PyPI project: https://pypi.org/project/mcp-pfsense/
- Socket report: https://socket.dev/pypi/package/mcp-pfsense
- Repository: https://github.com/felhen-ai/mcp-pfsense
- Changelog RSS feed: https://verifymcp.io/servers/felhen-ai-mcp-pfsense/mcp-pfsense.xml
- Changelog JSON feed: https://verifymcp.io/servers/felhen-ai-mcp-pfsense/mcp-pfsense.json
- HTML version of this page: https://verifymcp.io/servers/felhen-ai-mcp-pfsense/mcp-pfsense