Watson Tech
Watson Tesla Logger

Your Tesla's data, in your own database.

Every charge, every drive, every battery reading, logged to a Postgres database that belongs to you. Not a dashboard you rent. Data you can export, query, and keep.

How the data moves. Nothing goes the other direction.

What it does

How it works

Automation, in development

The logger never sends anything to your car. Automation is a separate module you turn on yourself. You generate a key, install it in your Tesla from the app, and the car only accepts commands signed by that key. You can revoke it from the Locks screen any time. Nothing here ships until I've run it on my own car for a month.

Reads your data

  • Phantom drain report: battery lost while parked, split by Sentry on or off and by where the car was.
  • Tire watch: pressure drift across all four tires over weeks, flagged when one diverges before the car warns you.
  • Software update gate: sees a pending update before the car prompts you.

Sends a command

  • Hurricane charge: when a watch is issued for your county, raise the limit to 100 and start charging.
  • Precondition to your pattern: learns when you leave each weekday from your own drive history and sets the departure time nightly. The cabin is cool when you open the door in August.
  • Supercharger advisor: ranks the stations you actually use by stalls free and price band, tells you when to leave, sends the navigation so the battery preconditions on the way.
  • Trip charge limit: raises the limit only when the route in the car needs it, back to your normal limit after.
  • Sentry by place: on at unfamiliar locations, off at the places you park most.

Every command writes an intent row to your database first, so you can see what it did and why.

Tell me which one you'd use first

Pricing

Setup

$150 one time, per car

Getting your car authorized, your database built, and your dashboards running.

Hosting and logging

$20 per month, per car

The logger, the database, and the dashboards, kept running.

Month to month. Cancel any time and take your data with you.

Monthly price assumes Tesla's current API pricing. If Tesla changes what it charges for vehicle data, the monthly adjusts with 30 days' notice.

Availability

Now taking a limited number of cars for October 2026 onboarding.

Reserve a spot

Send your Tesla model and year and I will put you on the October list.