An API marketplace for the digital exchange of energy data and services.

Find and connect to digital energy products via APIs

For Consumers

Find the energy data and services you need to transform your business


  • Easy discovery and integration of energy related API products
  • Get solid API documentation and usage reports
  • Scale your business with the right partners
re.alto browse APIs

We have the data you need from providers across the energy sector

re.alto forecasting APIs


re.alto forecasting APIs


re.alto forecasting APIs


re.alto e-mobility APIs


re.alto grid APIs


re.alto forecasting APIs

Market Info

re.alto market access APIs

Market Access

re.alto renewable APIs


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For Providers

Get more value from your energy data and services

re.alto enables you to monetise and promote your energy data in a new way.


  • Gain market visibility and new audiences
  • Manage your API products (including pricing & permissions) in one place
  • Simple subscription, billing, and contract management
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What our clients say

Energy Quantified

Hugo Birkelund – CEO

Together with re.alto we can further simplify data sourcing and facilitate companies to scale their business with a minimum of associated friction and cost.”


Stéphane Querinjean – Managing Director

“re.alto gives us the opportunity to open up new horizons and access digitally a new market”


Olivier Devolder – Energy Director

“As a data driven company, developing AI-based forecasting …it seemed natural for us to register our services on re.alto”

Building the future

re.alto is a mission-driven Belgium based company with a goal to bring all parties together to achieve an affordable & zero carbon energy future.

Energy is networked, variable and complex.  Digitalisation makes it smarter , more responsive, greener, and we want to propel companies forward by facilitating the digital exchange of data and services.

re.alto enables companies to capture, organise and share data and services easily, quickly and securely.  Innovators can make better products.  Businesses can make smarter decisions.  End-users get better products. With the right data it is easy to make smarter energy decisions.

re.alto team