Ask about the boats
in your care.
Connect Claude to your VoltSense HUB account and ask in plain words — batteries, sensors, alarms, maintenance. It can look at everything you approve, and change nothing at all.
Connect Claude to your VoltSense HUB account and ask in plain words — batteries, sensors, alarms, maintenance. It can look at everything you approve, and change nothing at all.
You never copy or paste a password, key or token anywhere.
In Claude, open Settings → Connectors and choose Add custom connector. Paste this URL.
https://mcp.voltsense.eu/mcpClaude sends you to the HUB to sign in with the account you already use. Your password never reaches Claude.
Pick which fleet may be read and review the list of permissions. Nothing outside that fleet is visible.
One command, then the same browser sign-in.
claude mcp add voltsense --transport http https://mcp.voltsense.eu/mcpSign in at hoiustaja.voltsense.eu and open Account → Connected apps. Every connection is listed with the fleet it covers and when it was last used. Removing one takes effect immediately, including for a conversation already in progress. We also e-mail you whenever a new connection is approved, so you would hear about one you did not make.
Which boats need attention this morning?worst-first, with the status your dashboard shows
When did Aurora last lose shore power?answered on every boat — see below
What maintenance is still open across the yard?every boat, most urgent first
Is the freezer on Triton still holding temperature?judged against your own alarm limits
Did anyone open the boat while I was away?open-and-close episodes, with durations
Has anything knocked into Nordkapp since launch?the strongest jolt in each measurement cycle
Most boats have no wired shore-power sensor, and on those the raw channel reports something meaningless rather than nothing — which is worse. So the assistant is given a worked-out answer instead: from the sensor where one is fitted, and otherwise from whether the house bank is being held at charging voltage. It is told which of the two it got, and that the second cannot tell shore power apart from solar or a running engine. Expect it to say so too.
The monitoring unit is fitted in whatever orientation suits the boat, so nothing in the data says which way is up relative to the hull. An assistant can tell you how far a boat has moved from her own resting attitude — useful if a cradle has shifted or a load has moved — but never which side she is leaning towards. If one claims to know, it is guessing.
You approve this list when you connect, one fleet at a time.
Read-only. It cannot create or change maintenance tasks, edit boats, alter settings or make payments. There is no write path to switch off — none exists.
Only the fleet you picked. A boat outside it does not read as forbidden; it reads as not there, because even its existence is not ours to confirm.
VoltSense does not track vessels. The position on your map is the berth you typed in. The monitoring device does report coordinates — we simply never ask for them, and no level of access changes that.
Not your password, not your payment details, not the device's own access key. This server holds none of them itself, so a compromise of it leaks nothing you had not already approved.
Fifteen, one group per permission. An assistant picks the right one; you never name them yourself.
| Tool | Answers |
|---|---|
list_boats | The fleet, worst-first, with the same status your dashboard shows |
get_boat | One boat's details, marina and berth |
get_battery_status | Current readings, each labelled as the boat's, the device's own, or signal |
get_measurement_history | History for one measurement — voltages, temperature, signal, and the strongest knock in each cycle |
get_shore_power_history | When a boat was and was not charging, on every boat |
list_channels | What can be read at all, with units |
get_alarm_history | Alarms already raised, each with how long ago it was |
list_maintenance | Everything open across the fleet, most urgent first |
get_boat_maintenance | One boat's tasks, or one task with its comments and logged hours |
get_manuals | The manuals attached to a boat |
get_ai_guard | The overnight analysis: findings and the written assessment |
get_account | Your licence, boat allowance, marinas and team |
list_sensors | EYE sensors with readings and your own alarm limits |
get_sensor_history | History for one sensor |
get_door_events | When a door or hatch was opened |
Authorisation is OAuth 2.1 with PKCE (S256) against
hoiustaja.voltsense.eu, which issues short-lived RS256 access
tokens bound to this resource. This server holds no credentials of its own:
it verifies your token against the HUB's published signing key and forwards
that same token, so the HUB re-decides which fleet, which permissions and
whether you have disconnected — on every single request. Refresh tokens
rotate; every call is recorded in an audit log.
/mcpMCP over streamable HTTP/.well-known/oauth-protected-resource/mcpRFC 9728 resource metadata/healthzLivenessBattery monitoring, maintenance records and alarms for marinas, storage yards and service companies. The assistant comes with it — see what VoltSense does.