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    • Financial services2 min read

      Transaction Stream API: Create Next-Level Payment Experiences for Your Users

      Imagine being able to build a consumer application with the ability to instantly and securely leverage a real-time, flowing stream of recent transactions. The uses of a real-time feed of data like this are virtually endless. Enter Fidel's Transactions Stream API.

      By Jeremy Luskin – Director, Business Operations & Strategy
    • Developers5 min read

      How To Set-Up SQS Dead-Letter Queues With Alarm Notifications

      Welcome to the first installment of Fidel API's engineering series. This week, our Senior Backend Engineer, Andre, guides us through setting up SQS dead-letter queues, a critical element of building serverless or event-driven architecture.

      By Andre Santos – Senior Backend Engineer
    • Talent3 min read

      How We Created A Data-Driven Talent Team

      In an era that’s becoming increasingly data-driven - it’s become central to making informed decisions. From both an acquisition and wellbeing standpoint, we aim to prioritize data as the means of boosting growth, from day one.

      By Beatriz Lourenço – Talent Manager
    • Tech4 min read

      Five With Fidel #7 | Carlos Vilhena, Head of Engineering, Fidel API

      The foundation of transformative tech companies starts with a stellar engineering team, and this week’s guest certainly knows a thing or two about that. Meet our new Head of Engineering, Carlos Vilhena!

      By Patrick Nealon – VP, Strategy
    • Company1 min read

      Fidel API Recognized by Deloitte as One of the Fastest Growing UK Tech Companies

      We're pleased to share Fidel API has ranked #15 among the UK’s fastest growing technology companies, and fifth among fintechs, on the 2021 Deloitte Technology Fast 50™.

      By Fidel API – Author
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    © 2025. Enigmatic Smile Ltd trading as Fidel. Fidel API uses a proprietary tokenization system and does not store any card numbers.
    All API requests use TLSv1.2 with end-to-end encryption. Fidel API receives transaction authorization messages
    typically within seconds of a successful authorization event.

    © 2025. Enigmatic Smile Ltd trading as Fidel. Fidel API uses a proprietary tokenization system and does not store any card numbers. All API requests use TLSv1.2 with end-to-end encryption. Fidel API receives transaction authorization messages typically within seconds of a successful authorization event.

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