Powerful APIs for the Clean Energy Economy

WattBuy's APIs empower enterprises to provide clean, affordable energy solutions to their customers

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Launch a Clean Energy Solution Under Your Brand

Our comprehensive set of APIs help enterprises provide their customers with clean energy options and personalized energy analytics.

Seamless integrations across several verticals

WattBuy’s actionable insights can be integrated elegantly into any app or website

Real Estate
Proptech companies and asset owners alike use WattBuy’s technology to empower their renters and homeowners by displaying expected electricity costs, carbon footprint, and offering 1-click utility setup and choice to residents and homeowners.
Personal Finance
Help your users save up 35% a year on electricity costs by providing them with actionable recommendations right within your platform. No link-offs or phone calls.
Optimize your customers’ home energy ecosystem by pairing a smart energy device or solar installation sale with the right electricity plan.

Our API Suite

WattBuy enables several far-reaching APIs to ensure our partners can build a personalized experience for their customers

Electricity Marketplace
Move-In APIs
Electricity Estimation
Utility Information and Rates
Account Lookup
Green Button Analysis
Start / Stop Service
Carbon Footprint
Need something else? Ask us!

With just a few lines of code, implement our API suite directly within your platform

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Sign up

Quickly create an account to learn more about WattBuy’s APIs. You’ll get your free developer credentials, so you can access your personalized electricity marketplace and start helping your customers save.


We provide easy-to-follow documentation, making it simple for you to implement WattBuy’s APIs. With just a few lines of code, your business will be a step ahead the rest, and your customers will have access to the information they need to take charge of their electricity.


Change the future of energy with WattBuy’s streamlined, ready-to-use electricity marketplace. Navigate our powerful API suite with confidence by testing your integration in our developmental sandbox, which allows for concurrent testing and reduces time-to-market.

Features and Benefits of WattBuy’s APIs

WattBuy offers customers an integrated solution rooted in documentation, encryption, scalability, and reliability


In the Press

WattBuy empowers better buying decisions with big data-backed energy intelligence

Techstars grad WattBuy raises $3.25M to help households shop for electricity providers

This Earth Day, 5 ways to cut your home energy bill to protect the environment and save during the coronavirus pandemic

Apply for Your Personalized API

Join some of the world’s biggest brands and enterprises who are already using WattBuy’s APIs to build new climate-friendly energy solutions.