TopoLight 0.4 — self-hosted network monitoring that draws your physical topology and folds downstream noise under the root cause: flow, endpoints, routing, wireless, config backup, clustering. One static Go binary: no database server, no agents, no phone-home.

Collects
• ICMP; SNMP v2c/v3: 64-bit counters → bit/s, pps, errors, drops; CPU/mem/temp for 10 major vendors
• LLDP/CDP topology; BGP/OSPF, VLANs, STP root, LAGs
• Syslog UDP/TCP/TLS; SNMP v2c/v3 traps/informs
• NetFlow v5/v9, IPFIX, sFlow: top talkers, apps, conversations
• MAC/ARP endpoint mapping, OUI vendors
• UniFi and Meraki APIs; Cisco WLC and Aruba APs; FortiGate SD-WAN
• gNMI/OpenConfig (beta); SSH config backup + diff; TCP/HTTP/DNS/TLS probes

Shows
• Live 3D/2D map; flap detection, topology-aware suppression
• Scheduled reports (SLA, MTTR, utilisation, inventory)
• E-mail, Telegram, HMAC webhook; API tokens; console 8433

Cluster: 2–5 servers, one command — mirrored data, sharded polling, failover.

All features in every edition; tiers differ only in capacity. Free: 25 devices. Pro: 500 devices, 3 sites, 6 months. Team: 1,500 devices, unlimited sites, 12 months. Offline key.

AI Assist (optional, offline): Explain any finding on your own hardware; the engine still decides.

Delivery. Paste your Instance ID (Admin → Licence) at checkout; the key, bound to that install, arrives by Whop DM; download in the Downloads tab.

Whop sells paid licences only. Free: github.com/nizartuanku/topolight