Joulo Developer Docs
Access your EV charger data, charging sessions, and energy statistics through the Joulo API.
Joulo API
Build on your EV charging data
Joulo connects EV chargers from any brand into a single platform. Use the API to pull charger status, session history, and energy statistics into your own applications, dashboards, or home automation.
Quick start
Make your first API call in minutes.
Authentication
Get your API token and authenticate requests.
Chargers
Understand charger objects and live status data.
API reference
Explore all available endpoints and response schemas.
How it works
Connect your charger
Sign up at joulo.nl and link your EV charger — Easee, Wallbox, Zaptec, OCPP, or others.
Get your API token
Generate a personal API token from the dashboard under Settings → API.
Fetch your data
Call GET /chargers, GET /sessions, or GET /energy to retrieve your charging data.
Integrate anywhere
Use the data in Home Assistant, custom dashboards, or any system that speaks HTTP.