# OPNsense

**Canonical:** https://apis.io/providers/opnsense/  
**Website:** https://opnsense.org  
**APIs profiled:** 4

OPNsense is an open source FreeBSD-based firewall and routing platform providing stateful packet filtering, VPN (IPsec, OpenVPN, WireGuard), intrusion detection (Suricata), traffic shaping, captive portal, and high availability for home, enterprise, and managed service provider deployments. The platform features a web UI, plugin ecosystem, and a comprehensive Business Edition. OPNsense exposes a REST API for managing every core module and plugin, using HTTP basic authentication with an API key and secret.

## Kin Score — 26.8 / 100 (thin)

Scored 2026-08-21 under rubric 0.12.0. Trend: flat (+0.0 from 26.8).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 55.2 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 2.6 |
| Developer Ergonomics | 26.2 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

## Agent readiness — 26.1 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (4)

- **OPNsense Core REST API** — REST API covering all core OPNsense modules including firewall, NAT, interfaces, VPN (IPsec, OpenVPN, WireGuard), routing, DHCP, DNS, users, and system administration. Authentic...
- **OPNsense Core API** — Core OPNsense service controllers.
- **OPNsense Diagnostics API** — Interface and system diagnostics.
- **OPNsense Firewall API** — Firewall filter and aliases.

## Agentic access (1)

- **Opnsense Agentic Access** — 6 operations · 2 acting

## Security (2)

- **Opnsense Authentication** — http · 1 scheme
- **Opnsense Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Tags

Firewall, Networking, Security, VPN, Routing, Open-Source

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/opnsense/). Scores are computed from the provider's own public artifacts under a published rubric.