API design newsletters

NewsletterFIT tracks 6 newsletters that cover API design as a primary topic, all with posts in the last 90 days. By publicly shown subscriber count, the largest are AI-Driven CI/CD (53K), The Polymathic Engineer (29K) and The Cloud Engineers (6K).

Updated Oct 29, 2026 · sorted by publicly shown subscribers · methodology

  1. 1
    AI-Driven CI/CD 53K subscribers

    Substack Monthly or less · last post 20 days ago

    Likely audience: DevOps engineers

  2. 2
    The Polymathic Engineer 29K subscribers

    Substack Weekly · last post 20 days ago

    Likely audience: System architects

  3. 3
    The Cloud Engineers 6K subscribers

    Substack Every two weeks · last post 8 days ago

    Likely audience: Cloud engineers

  4. 4
    Engincan Veske 1K subscribers

    Substack Monthly or less · last post 39 days ago

    Likely audience: Product managers

  5. 5
    Brain Beats —

    beehiiv Weekly · last post 17 days ago

    Likely audience: ML engineers

  6. 6
    Nairametrics Digest —

    LinkedIn Every two weeks · last post 14 days ago

    Likely audience: Nigerian business owners

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