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Alternatives

Products that do what YAML Studio does

Create OpenAPI YAML visually

  1. 1

    Beautiful API references from Swagger, OpenAPI spec

    2023

  2. 2OD

    Effortlessly discover API behaviour with a Chrome extension that automatically generates OpenAPI specifications in real time for any app or website.

    2023 · github.com

  3. 3

    Generate and share OpenAPI specs with AI

    2025

  4. 4

    API design studio for product managers

    2023

  5. 5

    Generate, edit, lint & test your API workflow in one place

    Sep 2025

  6. 6AF
  7. 7AJ

    Hey HN, we’re building an open specification that lets agents discover and invoke APIs with natural language, built on the OpenAPI standard. agents.json clearly defines the contract between LLMs and API as a standard that's open, observable, and replicable. Here’s a walkthrough of how it works: https://youtu.be/kby2Wdt2Dtk?si=59xGCDy48Zzwr7ND. There’s 2 parts to this: 1. An agents.json file describes how to link API calls together into outcome-based tools for LLMs. This file sits alongside an OpenAPI file. 2. The agents.json SDK loads agents.json files as tools for an LLM that…

    2025 · github.com

  8. 8LB
  9. 9

    Your playground for writing custom API security tests

    2023

  10. 10

    Link your app design to API calls

    2022

  11. 11NW
  12. 12GO

    2023 · github.com

  13. 13

    Free online tool to test APIs and autogenerate documentation

    2018

  14. 14

    Generate production-ready SDKs from OpenAPI specs instantly

    Jul 2026 · sdkcraft.com

  15. 15LA

    You build LLM applications with YAML files, that define an execution graph. Nodes can be either LLM API calls, regular function executions or other graphs themselves. Because you can nest graphs easily, building complex applications is not an issue, but at the same time you don't lose control. The YAML basically states what are the tasks that need to be done and how they connect. Other than that, you only write individual python functions to be called during the execution. No new classes and abstractions to learn.

    2024 · github.com

  16. 16
    Platapi108

    Convert OpenAPI docs to working dynamic mock endpoints

    2024

  17. 17KA

    Hey HN, I'm Brandon, a solo dev, and I built KubeForge - a visual editor for Kubernetes deployments that helps you build and validate YAML configs. Origin Story: Over the past couple weeks, I got fed up manually writing Kubernetes YAMLs, especially when working with nested structures like containers, env, and volumeMounts. Even small typos or misaligned fields added lost time to broken deploys. So I started hacking together a tool to visualize the structure of Kubernetes objects based on the OpenAPI schema. That prototype quickly turned into a full manifest builder. What KubeForge does: -…

    2025 · github.com

  18. 18WM

    Hey, I'm Martyn and I recently joined Zuplo. OpenAPI is a huge part of what we do, but getting a document up to scratch out of the gate, especially if you're not super well versed in the actual specification and what you should use and when. So we built a suite of tools to help with this called Rate My OpenAPI. It will score your OpenAPI document out of 100, as well as giving you individual scores in 4 key areas; completeness, SDK generation, security and documentation. Along with the score, you also get details of what the issues, or errors are, as well as guidance on what they actually…

    2024 · github.com

  19. 19YA
  20. 20OS

    We built an open-source tool that scans your codebase and generates OpenAPI docs in minutes. Right now it supports Rails, Go, Python, and NodeJS frameworks, and we will keep adding more. It picks up routes, params, request bodies, and models directly from the code and outputs a clean OpenAPI spec you can drop into your workflow.

    Nov 2025 · github.com

  21. 21
    ApiHome73

    Home of API testing

    2022

  22. 22

    OpenAPI, YAML, JSON, and XSD schemas Viewer and designer

    Feb 2026

  23. 23AO

    Hi Hacker News! My name is Sagar, I’m working on a startup called Speakeasy - we’re making all APIs self-service. The platform is currently in beta, but we’re independently launching this tool which you can use to generate language-idiomatic, statically-typed TS SDKs from any public OpenAPI schemas. We hope to continue iterating on this to give devs a way to easily generate high fidelity client SDKs for all the major languages. Inspiration for this product is from past experiences struggling with OpenAPI. I was originally optimistic about using the OpenAPI tools to build out our offering,…

    2022 · easysdk.xyz

  24. 24HA

    Demo starts at 50m into the video. This was a bit terrifying to record because 2am the previous night everything was totally broken after a major refactor (so that we could add external LLM support as well as local GPUs). But pressure can be a useful force :-D We start with a stack deployed on my laptop without a GPU, pointing to together.ai so we can run open source LLMs easily without having to have access to a GPU. We show simple inference through the ChatGPT-like web interface (with users, sessions etc) and then simple drag'n'drop RAG. Then we show some helix apps defined as yaml: Marvin…

    2024 · youtube.com

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