Teslemetry vs Tessie
Teslemetry vs Tessie: a developer and Home Assistant API versus a polished consumer app. Features, pricing models, and which fits how you want to use your Tesla.
Teslemetry and Tessie both give you access to your Tesla beyond the official app, and both offer a Home Assistant integration, which is why they get compared. But they are built for different people. Tessie is a consumer app with a polished interface, logging, and analytics. Teslemetry is an API service for developers and smart-home users who want their car's data and commands inside their own setup, especially Home Assistant.
mytesla.io is an independent service and is not affiliated with, endorsed by, or sponsored by Tesla, Inc., Teslemetry, or Tessie. This comparison summarizes publicly available information as of October 2026. Both products have changed pricing more than once; check their sites for current details.
The short version
- Pick Tessie if you want an app to open and tap, with trip logs, battery health, and alerts out of the box.
- Pick Teslemetry if you run Home Assistant (or write code) and want streaming vehicle data and commands as building blocks, without a consumer app in the middle.
- Pick mytesla.io if you'd rather your AI assistant (Claude, ChatGPT) build it for you: describe the automation, alert, or dashboard in plain English and it uses your car's live data and commands to make it happen.
Side by side
| Tessie | Teslemetry | mytesla.io | |
|---|---|---|---|
| What it is | Consumer app + dashboard | Developer / smart-home API | AI assistant connection (MCP server) |
| Who it's for | Most owners | Home Assistant users, developers | People who use Claude, ChatGPT, etc. |
| Main interface | iOS, Android, web, watch | Home Assistant, API, web console | Your AI assistant |
| Trip and charge logging | Yes, detailed | Data stream you store yourself | No (privacy choice) |
| Real-time streaming | Yes (in app) | Yes (Fleet Telemetry) | Live reads on request |
| Home Assistant | Yes | Yes (a core strength) | No - works through your AI instead |
| Energy products (Powerwall/solar) | Not a focus | Yes | No |
| Automations | In-app (Pro) | Whatever you build in HA | Described in plain English to your AI |
| Pricing model | Subscription, Basic ~$6.99/mo, Pro ~$12.99/mo | Per-vehicle subscription + usage credits | 100 free credits, then $4.99/mo or $9.99/mo |
Where Tessie wins
- No setup. Install, sign in with Tesla, done. Logging and analytics work immediately.
- Analytics. Drive and charge history, battery health, and (on Pro) battery temperature, current, and voltage. See Tessie vs Tessie Pro.
- Polish. It's a finished product for owners, not a toolkit.
Where Teslemetry wins
- Home Assistant. Teslemetry is a popular way to bring a Tesla into Home Assistant, with streaming data that keeps entities up to date without constantly waking the car.
- Flexibility. You decide what to store, chart, and automate. If you can build it in Home Assistant or code, Teslemetry gives you the data and commands to do it.
- Energy. It also covers Tesla energy sites, useful if you have Powerwall or solar.
- Pay for what you use. Pricing is usage-based on top of Tesla's own pay-per-use Fleet API costs, which can be cheap for light use.
The trade-off nobody mentions: someone still has to build it
With Tessie you tap buttons and configure rules. With Teslemetry you build dashboards and automations yourself in Home Assistant or code. Either way, the thinking is yours.
mytesla.io takes a different approach: your AI assistant does the building. mytesla.io connects your Tesla to ChatGPT, Claude, or any MCP-compatible assistant, giving it live data and 41 commands through Tesla's official Fleet API. Then you just describe what you want:
| The Teslemetry / Home Assistant way | The AI way with mytesla.io |
|---|---|
| Write an automation for off-peak charging | "Charge to 80% overnight, off-peak only, 100% on Fridays." |
| Build a dashboard card for tire pressure | "Chart my tire pressures for the month" (from a log your AI keeps on your side) |
| Template a notification for open windows | "Tell me if a window is open and rain is coming." |
| Script a morning routine | "Have the car warm and charged before my first meeting." |
Why developers and tinkerers like it too:
- Zero glue code. The assistant composes the tool calls; you iterate by rephrasing, not by editing YAML.
- It evolves. Better models and new assistant features (memory, code execution, scheduled tasks) make your setup more capable without you touching it.
- It's personal. Each assistant builds exactly what its owner asks for, including private dashboards via the Vehicle History skill. mytesla.io stores no history of your car.
- It's an open standard. It's an MCP server, so it also works in Cursor, VS Code, Claude Code, and other MCP clients.
Honest limits: no Home Assistant entities, no Powerwall or solar, and no continuous telemetry stream. If you want your car inside Home Assistant, Teslemetry is the better tool, and it runs side by side with mytesla.io.
Try it: create an account (100 free credits), connect your Tesla, and add mytesla.io to Claude or ChatGPT.
FAQ
Is Teslemetry better than Tessie for Home Assistant? For most Home Assistant users, Teslemetry is the more flexible choice because streaming data and HA integration are its focus. Tessie's integration is handy if you already pay for Tessie and also want its app.
Is Teslemetry cheaper than Tessie? Often, for light use, because it's usage-based. Heavy command use or several vehicles can change that. Teslemetry has restructured its pricing more than once, so compare current numbers for your own usage.
Does Teslemetry have an app like Tessie? Not in the same sense. Teslemetry has a web console, but you're expected to use the data through Home Assistant or your own code.
Can I use Teslemetry and Tessie together? Yes. Each one connects to your car through Tesla's Fleet API with its own authorization. Running several services at once can mean more requests to the car, so keep an eye on sleep behavior.
Where does mytesla.io fit? It's for controlling the car through an AI assistant (Claude, ChatGPT, Cursor, and other MCP clients) in plain English. It doesn't log history or integrate with Home Assistant. See best third-party Tesla apps.