Connect Zaptec with LadeKosten

How the integration works

Zaptec operates a cloud-based system where all charger data is synced to the Zaptec cloud. LadeKosten connects to this data through the Zaptec Cloud API using OAuth2 authentication, which is the most secure method available.

When you set up the integration, LadeKosten redirects you to Zaptec's own login page. You sign in there and grant LadeKosten permission to read your charging data. At no point does LadeKosten see or store your Zaptec password. Instead, the app receives an OAuth2 token that provides read-only access to your sessions.

This token-based approach means you stay in control. If you ever want to disconnect LadeKosten, you can revoke the token from the Zaptec Portal and the connection is severed immediately.

Once authorized, LadeKosten periodically syncs your charging sessions. Each session includes the energy delivered in kWh, start and end timestamps, charging power profile, and the charger identifier. The app applies your configured electricity rate to calculate the cost.

Supported models

Zaptec's product lineup is focused and consistent, which makes integration straightforward:

• Zaptec Go - The residential charger with up to 22 kW and a minimalist design. Perfect for home installations. Full session tracking and cost calculation.
• Zaptec Pro - Designed for multi-unit buildings, workplaces, and commercial properties. Supports load balancing across many chargers. LadeKosten tracks your individual sessions within the larger installation.
• Zaptec Park - The outdoor-rated charger for parking facilities. Same cloud connectivity, same LadeKosten features.

All Zaptec chargers communicate through the same cloud platform, so the integration works identically regardless of your model.

Setting up Zaptec with LadeKosten

Start by opening LadeKosten and navigating to the wallbox setup. Select Zaptec, and the app opens a secure browser window to the Zaptec login page. Enter your Zaptec Portal credentials and approve the connection.

Back in LadeKosten, you will see a list of your Zaptec installations and chargers. If you have a single charger at home, there is just one to select. If you are part of a larger installation, like an apartment building with shared chargers, pick your specific unit.

Set your electricity rate, and LadeKosten syncs your session history. Past sessions are imported with full details so you have a complete cost picture from the start.

The entire setup takes under three minutes and only needs to be done once. The OAuth2 token handles re-authentication automatically.

Feature highlights

Secure OAuth2 authorization - The gold standard for API security. Your Zaptec credentials are never shared with LadeKosten. You authenticate directly with Zaptec and grant read-only access.

Multi-tenant support - Zaptec is popular in apartment buildings and shared facilities. LadeKosten correctly identifies and tracks your personal sessions, even in installations with hundreds of charge points.

Accurate energy metering - Zaptec chargers include high-quality built-in meters, often MID-certified. LadeKosten uses these readings for precise cost calculations.

Historical sync - Your past charging sessions are imported when you connect, so you do not start with an empty history. This is especially useful if you want to document costs for a period you have already completed.

Dynamic electricity pricing - If you are on a variable-rate electricity contract, common in the Nordics, LadeKosten lets you configure time-based rates so each session is priced at the rate that actually applied when you charged.

Clean tax exports - Export your charging cost data in formats suitable for tax filing. For company car drivers in Germany, this documentation can save you significant money at tax time.

The Nordic connection

Zaptec's popularity in Norway and Sweden means many users are already familiar with smart charging and energy management. In these markets, electricity prices fluctuate hourly, and knowing exactly what each charging session costs is not just nice to have, it is essential for managing your household budget.

LadeKosten is built with this reality in mind. The app supports flexible rate configurations that can reflect time-of-use pricing, seasonal variations, and even integration with spot price feeds in the future.

If you are a Zaptec owner looking for better cost visibility, join the LadeKosten waitlist to be notified when the integration goes live.