Your Cart
    Subtotal
    US$0

    Card

    ···· ···· ···· 4242
    Test card

    05/18

    Card

    Use a different card?

    Card

    pp paypal

    or pay with

    We do not keep any of your sensitive credit card information on file with us unless you ask us to after this purchase is complete.

    or pay with

    Your purchase was successful!

    We charged your card and sent you a receipt

      Gumroad Library

      Download from the App Store or text yourself a link to the app

      Matthias Biehl

      Matthias works as an API management consultant on API design, API development processes and API security with OAuth. Matthias has more than 7 years of experience in industrial software engineering and a background in software engineering research.

      Follow for updates on what Matthias Biehl is creating.

      API-University Book Club

      Each month the API-University Book Club delivers another book from the API-University Series. Straight to your inbox. With each book, you get one of the best resources to deep-dive into a new topic in the API space.

      As a member of the API-University Book Club you get:

      • The book of the month from the API-University Series. Each month, a different book is nominated and delivered straight to your inbox.
      • Books in both EPUB and PDF format, typically each format is sold separately
      • No risk: Cancel any time - no questions asked
      • Great value – saving you money: single books of the API-University Series sell for 29.99 USD in PDF format and 19.99 in EPUB format. With the Book Club you get PDF + EPUB, totaling 49.98 USD of value for just 12.99 USD. This corresponds to a 74% rebate.
      Sorry, this item is not available in your location.
      Sold out, please go back and pick another option.

      Name a fair price:

      Checkout

      API-University Book Club

      Enter your info to begin your Monthly subscription. You can cancel anytime.

      Card

      ···· ···· ···· 4242
      Test card

      05/18

      Card

      Use a different card?

      Card

      pp paypal

      or pay with

      We do not keep any of your sensitive credit card information on file with us unless you ask us to after this purchase is complete.

      or pay with

      You'll be charged US$12.99 today.

      Your subscription was successful!

      We charged your card and sent you a receipt

        Gumroad Library

        Download from the App Store or text yourself a link to the app

        Thank you very much for your purchase! Your support allows us to keep doing what we love to do: create the world's best training on API topics.

        Now, we also offer courses on RESTful API Design, OAuth API Security, OpenID Connect, API Business, and more on

        https://api-university.com/courses

        Good news! Since you already have a Gumroad account, it's also been added to your library.

        Powered by Gumroad