Connect Zaptec with ChargeDoc

How the integration will work

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

When you set up the integration, ChargeDoc will redirect you to Zaptec's own login page. You sign in there and grant ChargeDoc permission to read your charging data. At no point will ChargeDoc see or store your Zaptec password. Instead, the app will receive 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 ChargeDoc, you will be able to revoke the token from the Zaptec Portal and the connection is severed immediately.

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

Planned 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 are planned.
• Zaptec Pro - Designed for multi-unit buildings, workplaces, and commercial properties. Supports load balancing across many chargers. ChargeDoc will track your individual sessions within the larger installation.
• Zaptec Park - The outdoor-rated charger for parking facilities. Same cloud connectivity, same planned ChargeDoc features.

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

Setting up Zaptec with ChargeDoc

You will start by opening ChargeDoc and navigating to the wallbox setup. Select Zaptec, and the app will open a secure browser window to the Zaptec login page. Enter your Zaptec Portal credentials and approve the connection.

Back in ChargeDoc, 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 ChargeDoc will sync your session history. Past sessions will be imported with full details so you have a complete cost picture from the start.

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

Planned feature highlights

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

Multi-tenant support - Zaptec is popular in apartment buildings and shared facilities. ChargeDoc will correctly identify and track 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. ChargeDoc will use these readings for precise cost calculations.

Historical sync - Your past charging sessions will be imported when you connect, so you do not start with an empty history. This will be 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, ChargeDoc will let 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.

ChargeDoc 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 waitlist and be the first to know when it launches.

The step-by-step guide below describes the planned flow and applies once the integration is available.