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Dev tools · alternatives · 2026

MU

24 alternatives to M3O – Universal Public API Interface

Hey all, I'm Asim, the founder of M3O, a curated catalog of APIs that provides simple abstractions for the most common API use cases. The idea is to create a single place to explore, discover and consume public APIs as higher level building blocks. Most of the time I don’t use all the features of an API and I assume most devs don't either, so picking and choosing the common patterns, abstracting it away and surfacing a new building block is useful. For example, Twilio has a lot of APIs but I only care about SMS. Even then I just want a quick way to send it. So stripping it all away results…

M3O is a curated catalog of public APIs that provides simplified abstractions for common use cases. Instead of navigating complex full-featured services, developers can access streamlined building blocks like SMS… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. M3O – Universal Public API Interface launched in 2022; newer entries below may have overtaken it.

  1. 1MA
    M3O – an open source public cloud platform▲33

    2021 · blog.m3o.com · its alternatives →

  2. 2
    Medium API▲472

    Official Medium API

    2015 · medium.com · its alternatives →

  3. 3
    Public APIs 3.0▲538

    A collection of public APIs for your next project

    2021 · public-apis.io · its alternatives →

  4. 4
    Public APIs▲641

    Find public APIs and start building projects and share them.

    2019 · public-apis.io · its alternatives →

  5. 5
    M3O▲5

    Next generation cloud platform

    2022 · m3o.com · its alternatives →

  6. 6
    Tiny API▲538

    Enabling developers to monetise their code

    2023 · tinyapi.co · its alternatives →

  7. 7
    Anything API▲656

    Hey HN! We built Notte, a browser infrastructure and agents platform. Many of our users automate UI workflows or extract data from sites that don’t have APIs. In practice, we noticed that once an agent understands how a site works, parts of the task can often run without a browser by interacting with the same network requests the site uses. So we built Anything API: describe a browser task, and our agent explores the site, builds a function, tests it against your description, and deploys a callable REST endpoint. No infra to manage. How the build works: - Describe the task (best results come…

    Mar 2026 · anything.notte.cc · its alternatives →

  8. 8
    PublicAPIs▲274

    Explore the largest API directory in the galaxy

    2014 · publicapis.com · its alternatives →

  9. 9
    Theneo 3.0▲624

    The API management platform for humans and agents

    2024 · theneo.io · its alternatives →

  10. 10RI
    ReadMe.io – Beautiful Documentation Made Easy▲266

    ReadMe helps you create beautiful, interactive API documentation that developers love.

    2014 · readme.io · its alternatives →

  11. 11
    Miso – A Haskell implementation of Elm▲114

    :ramen: A tasty Haskell web and mobile framework. Contribute to dmjio/miso development by creating an account on GitHub.

    2017 · github.com · its alternatives →

  12. 12OS
    Open-source Postman alternative with type safety▲275

    Hello! This is Jeane and Samuel and we’re building RecipeUI. RecipeUI is an open source Postman alternative that uses TypeScript to statically type and autocomplete requests. We built this because current API tools don’t deal with the fact that some APIs are just painful to work with. For us, it’s usually error after error as we try to figure out how to properly form the first request. We recorded a demo to show you how TypeScript helps us autocomplete a request correctly. https://youtu.be/O_Mly_p-g5s How does our platform improve the developer experience? The analogy is…

    2023 · recipeui.com · its alternatives →

  13. 13
    ReadMe Build▲367

    Build, deploy and share APIs & microservices easily 🚀

    2017 · its alternatives →

  14. 14
    Abstract APIs▲341

    Simple, powerful APIs for everyday dev tasks

    2020 · abstractapi.com · its alternatives →

  15. 15
    ReadMe Micro▲124

    Document your internal APIs and microservices with ease

    2023 · micro.readme.com · its alternatives →

  16. 16
    M3O▲7

    A faster way to build (Micro) services, batteries included.

    2020 · m3o.com · its alternatives →

  17. 17
    Micro▲93

    APIs for everyday use

    2021 · m3o.com · its alternatives →

  18. 18
    Amio▲114

    Single developer-friendly API, multiple messengers.

    2018 · amio.io · its alternatives →

  19. 19
    Apidog▲570

    Development teams often struggle with using multiple tools like Postman and Swagger for API design, development, and testing. This fragmented approach leads to outdated API specs and chaotic collaboration. So we built Apidog: a single, unified API platform for team collaboration. It has a beautiful interface that makes it easy to create API spec, generate request data from API spec, validate responses, create mock data, orchestrate test scenarios, and publish API documentation. Apidog = Postman + Swagger + Mock + JMeter.

    2024 · apidog.com · its alternatives →

  20. 20
    Kong▲174

    Management layer for microservices and APIs

    2015 · konghq.com · its alternatives →

  21. 21
    Octo – Generate a serverless API from an SQL query▲241

    2020 · octoproject.github.io · its alternatives →

  22. 22MA
    Micro – A public API platform (now free during beta)▲25

    2021 · m3o.com · its alternatives →

  23. 23
    Elvafree tier, from $100/mo▲303

    Goodbye, Postman. Your APIs have new consumers

    Sep 2026 · getelva.ai · its alternatives →

  24. 24
    Istio▲76

    Open platform to connect, manage, and secure microservices

    2017 · istio.io · its alternatives →

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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 →