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Resources

Documentation, status and answers.

Technical material for evaluators: the shape of the API, which integrations exist or are planned, how status would be reported, and the questions we hear most.

API preview

Session-authenticated JSON endpoints.

The demo exposes the same endpoints the app uses. Writes need a CSRF token and a same-origin request. Public API keys and versioned documentation are planned for early-access customers.

RequestGET
curl -s https://app.example.com/api/energy/live \
  -H "Cookie: wl_session=…"
Response200 OK
{
  "hour": 13.5,
  "solarKw": 4.8,
  "loadKw": 1.9,
  "batteryKw": 2.1,
  "gridKw": -0.8,
  "socPct": 64,
  "rateBand": "standard",
  "today": { "generated": 21.4, "selfPoweredPct": 87 }
}
EndpointMethodAccess
/api/energy/liveGETHousehold member
/api/energy/dailyGETHousehold member
/api/devices/{id}PATCHHousehold member
/api/insights/{id}POSTOwner
/api/me/exportGETSigned-in user
/api/healthGETPublic
Integrations

What exists, and what is planned.

Only the JSON API and personal data export are available. Everything else is a roadmap item to be scoped with early-access households; no partnerships are implied.

REST and JSON APIAvailable in the demo
Personal data exportAvailable in the demo
Solar invertersPlanned
Home batteriesPlanned
EV chargers (OCPP)Planned
Smart metersPlanned
Tariff importPlanned
Home assistantsPlanned
System status

Uptime reporting, as it would appear.

Wattlark is a demo, so this panel illustrates the layout of a status page using generated sample data. It is not a live monitor and not a service-level commitment.

All systems operationalIllustrative layout. Not a live feed and not a service-level commitment.
Web app99.91%
Public API99.97%
Meter ingest99.77%
Notifications99.90%
Weekly summaries99.94%
90 days agoToday
FAQ

Frequently asked questions.

Still unsure? Contact sales and a person will reply.

Can I buy Wattlark today?

Not yet. It is a product concept in early access. The demo is fully working against fictional households so you can judge the experience and the controls.

Does Wattlark change my devices on its own?

No. Suggestions say what they change and what they expect to save, and nothing happens until an owner presses Apply. Every change is written to the activity log.

Who can see my energy data?

Members of your household, according to their role. Staff accounts can manage access and read the audit trail but have no permission to open household energy data.

Which security certifications do you hold?

None. We describe the controls that exist in the code and mark planned work as planned. We do not claim SOC 2, ISO 27001 or any other attestation.

Which inverters and chargers will it support?

Connectors are on the roadmap and will be scoped with early-access households. The demo uses a simulation in place of live device feeds.

How do I get access?

Use Contact sales or join the early-access list from the home page.

Release notes

Recent changes.

Oct 2026
Energy flow Sankey

Sources and uses drawn with ribbons proportional to power, replacing the animated diagram.

Oct 2026
Site drawing

An architectural line drawing of the home with live readings on each asset.

Sep 2026
Activity log verification

Staff can verify the hash chain from the admin audit page.

Resources · Wattlark
UnitOne AI sample project — currently under development. You can explore the interface, but submitted data is not stored.