# WHATPORT(5087)

## NAME

port 5087 — BIOTIC — Registered to BIOTIC, a binary IoT messaging protocol — rarely seen on real networks.

Protocol: TCP  
IANA registry

## DESCRIPTION

IANA assigns 5087/tcp to biotic, "Binary Internet of Things Interoperable Communication", a protocol proposal from Peter Waher aimed at resource-constrained IoT devices that combines request/response, publish/subscribe, and peer-to-peer patterns in one binary encoding. The UDP side of 5087 is Reserved. Deployment is minimal, so a listener on this port is much more likely to be an unrelated application than a BIOTIC endpoint.

## EXPOSURE

**Expose with care.** Identify the actual service before opening it; the registration alone says nothing about whether what is listening authenticates or encrypts.

## CHECK

```sh
sudo lsof -nP -iTCP:5087 -sTCP:LISTEN
```

## SEE ALSO

- spec — [BIOTIC — executive summary (Neuro Foundation)](https://neuro-foundation.io/Papers/Biotic%20-%20Executive%20Summary.pdf) (neuro-foundation.io)
- iana — [IANA port registry — 5087 (biotic)](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=5087) (iana.org)

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HTML: <https://whatport.net/5087/> · JSON: <https://whatport.net/5087.json> · full dataset: <https://whatport.net/ports.json>