Case Study: First Utility secures public APIs and accelerates growth with Axway API Gateway

Deploying Axway API Gateway to secure public APIs, while enabling a low cost-to-serve

First Utility is an agile UK energy challenger that grew to one million accounts by offering very low rates and a self-service model to keep costs down. To support rapid customer acquisition, third‑party apps and automated processes, the company needed a secure, auditable way to expose APIs publicly while tightly controlling access and activity for each partner.

First Utility deployed the Axway API Gateway to provide API key/OAuth authentication, policy management and high‑performance routing. The platform enabled rapid time‑to‑market, process optimization and strong security while scaling comfortably to 0.5–4 million API calls per week, helped power a top‑ranked mobile app, supported smart‑meter and midata initiatives, and protected the company’s low cost‑to‑serve business model.

First Utility

Keith Sterling

Head of Software Development