Dev tools · alternatives · 2026

24 alternatives to Square Catalog API

Let developers write apps built on top of Square's catalog

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Square Catalog API launched in 2017; newer entries below may have overtaken it.

1. 1
   Build with Square▲168

   Create your perfect commerce solution on Square’s platform.

   2016 · developer.squareup.com · its alternatives →

2. 2
   Documentation Agency▲192

   We write your product or library documentation.

   2017 · documentation.agency · its alternatives →

3. 3
   Square Appointments▲158

   Schedule, book and take payments anywhere 💇📅📲

   2015 · squareup.com · its alternatives →

4. 4
   Square Reader SDK▲152

   Your app, powered by Square hardware

   2018 · developer.squareup.com · its alternatives →

5. 5
   Square for Retail▲167

   Point-of-sale app & set of tools for retail businesses

   2017 · its alternatives →

6. 6
   API List▲559

   A collective list of APIs. Build something.

   2017 · apilist.fun · its alternatives →

7. 7
   Square Payroll▲168

   Payroll designed for hourly employees

   2015 · squareup.com · its alternatives →

8. 8
   Whiteboard▲119

   Simply write beautiful API documentation.

   2016 · github.com · its alternatives →

9. 9
   Squarespace▲110

   Create beautiful websites and blogs easily

   2014 · squarespace.com · its alternatives →

10. 10
    Square Orders API▲6

    Build commerce apps that go beyond payments.

    2019 · developer.squareup.com · its alternatives →

11. 11
    Developerhub.io▲149

    Create beautiful powerful documentation, hassle-free.

    2018 · developerhub.io · its alternatives →

12. 12
    Writepls▲97

    A curated list of articles to help you write

    2015 · writepls.com · its alternatives →

13. 13
    Square Invoices▲87

    Invoices to customers' inboxes by Square

    2014 · squareup.com · its alternatives →

14. 14
    APIfood▲206

    Largest API directory

    2016 · its alternatives →

15. 15IM
    I'm building an app to replace Overleaf and Notion▲82

    Hi HN, Since 2019, I’ve been working on a writing platform designed for creating complex documents (e.g., theses). I personally use it for everything as it also allows to classify documents in categories so you can organize them efficiently. As of a few months ago, the app is also available in the browser, and you can now invite coworkers to collaborate on a document in real time. The app is somewhat inspired by LyX. It offers an intuitive, modern editor, but users don’t need to know any LaTeX. When it’s time to export, they can choose from a range of templates (IEEE paper, thesis, etc.). A…

    2025 · its alternatives →

16. 16
    Square Gift Cards▲84

    Design gift cards for your business

    2014 · squareup.com · its alternatives →

17. 17
    Build APIs You Won't Hate▲69

    All you need to know about writing APIs

    2015 · amazon.com · its alternatives →

18. 18
    Square Dashboard▲93

    Real time sales data and analytics for business owners

    2015 · squareup.com · its alternatives →

19. 19
    Pocket Square▲78

    The best looking place for developers to showcase their work

    2015 · its alternatives →

20. 20
    Build APIs You Won't Hate▲73

    Everyone and their dog wants an API

    2015 · amazon.com · its alternatives →

21. 21AM
    API Marketplace for Developers by Developers▲54

    2016 · askmacgyver.com · its alternatives →

22. 22
    Space911▲71

    Activities planning software & APIs for developers & brands

    2021 · play.google.com · its alternatives →

23. 23
    Writer AI Studio▲74

    The fastest way to build AI apps

    2024 · writer.com · its alternatives →

24. 24
    Apiary▲101

    Blueprint for API Development

    2013 · apiary.io · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →