Developer

    Build on Joulo

    OCPP gateway, open-source proxy, REST API — everything you need to integrate charger data into your own systems.

    curl -H "Authorization: Bearer YOUR_TOKEN" \
  https://joulo.nl/api/v1/sessions
    API docsFree account

    // Tools

    Your full toolkit

    // Use Cases

    What can you build?

    Multi-backend architecture

    Send charging data to Joulo for ERE credits and to your own energy management or analytics platform simultaneously.

    Home Assistant & home automation

    Integrate charger data into your smart home. Use our REST API or OCPP proxy to push data to your own systems.

    CPO & installer platform

    Manage a fleet of chargers via OCPP and offer your customers automatic ERE registration through the Joulo platform.

    Build custom integrations

    Use the REST API to build dashboards, reports or notifications on top of Joulo data.

    // Ready to start?

    Start building

    Create a free account, connect your charger and fetch your first data.

    Sign up freeAPI docs

    Related pages

    OCPP connection

    Connect any OCPP 1.6J charger to Joulo.

    OCPP Proxy / Splitter

    Open-source proxy for multiple backends.

    REST API

    API documentation, endpoints and Home Assistant.

    Platform status

    Realtime status of all Joulo services.

    developer.joulo.nl

    Developer portal with extended documentation.

    status.joulo.nl

    Realtime status of all Joulo services.

    Ready to get started?

    Create a free account and connect your charger. Find your API token directly in the dashboard.

    Sign up freeAPI docs