nowfound

Alternatives

Products that do what Hephaestus does

Modular API testing engine for Postman — zero dependencies

  1. 1

    Build, test, and document your APIs faster

    2016

  2. 2
    Postman182

    Postman is a powerful HTTP client to test REST API

    2014

  3. 3
    Sparrow457

    The lightest and fastest platform for API testing

    2025

  4. 4NW
  5. 5
    Sparrow331

    The Open Source API Testing Tool For All Developers

    2024

  6. 6

    Build modular easily testable microservice & serverless apps

    2019

  7. 7MA

    I am happy to announce my minimalist zero-dependency web framework, Minum, is out of beta. http://github.com/byronka/minum You will be hard-pressed to find another modern project as obsessively minimalistic. Other frameworks will claim simplicity and minimalism and then, casually, mention they are built on a multitude of libraries. This follows self-imposed constraints, predicated on a belief that smaller and lighter is long-term better. Caveat emptor: This is a project by and for developers who know and like programming (rather than, let us say, configuring). It is…

    2023 · github.com

  8. 8

    Test your LLM powered APIs & AI agents

    2024

  9. 9NO

    Hello HN! The day has finally come to stop adding features and start sharing what I've been building the last 5-6 months. It's a bit of CrewAI, OpenDevon, LangFuse/Cloud all in one, providing devs who prefer TypeScript an integrated framework thats provides a lot out of the box to start experimenting and building agents with. It started after peeking at the LangChain docs a few times and never liking the example code. I began experimenting with automating a simple Jira request from the engineering team to add an index to one of our Google Spanner databases (for context I'm the…

    2024 · github.com

  10. 10FA

    I've just released an early version off my project I've been working on for a few months now and would love some feedback. https://github.com/fourlexboehm/faasta I was surprised there isn't yet an open/source and standards compliant way to host wasi-http functions in a way that takes advantages of WASM, a multi tenanted application. If you're not familiar with wasi, Compared to something like AWS Lambda, this approach is much more efficient as a single process can serve 1000s of function invocations concurrently and asynchronously, instead requiring an entire VM.…

    2025 · github.com

  11. 11PV

    Hi HN! I just released version 1.0 of Posting, an open source terminal application I've been working on which you might find useful if you work with, test, or develop HTTP APIs! Posting (https://github.com/darrenburns/posting) is an HTTP client, not unlike Postman and Insomnia. However, as a TUI application, it works over SSH and enables efficient keyboard-centric workflows. Your requests are stored locally in simple readable YAML files, meaning they're easy to read and version control. Some other features include: - "Jump mode" navigation - Environments/variables…

    2024 · github.com

  12. 12
    NobodyWho106

    Hey, Hello, we are the team behind NobodyWho; an open-source plugin that embeds large language models functionality inside Unity and Godot games - completely locally and offline. We try to make it as easy and user friendly as possible to use our plugin, so feel free to create an issue on our GitHub if you have any inconveniences - and we will try to improve it! So why might this interest you: - Written in Rust with llama.cpp bindings and optional GPU back-ends (Vulkan / Metal) for fast inference. - Drop-in nodes / components: add a model asset and a chat or embedding node and get a…

    18d ago · github.com

  13. 13

    Instant mock REST & LLM APIs - free, no signup required

    Feb 2026 · mockapi.dog

  14. 14OA

    A lightweight engine for durable execution / deterministic workflows I built with Rust, wasmtime and the WASM Component Model. Its main use is running reliable, long-running workflows that can automatically resume after failures. Looking for feedback on the approach and potential use cases!

    2025 · obeli.sk

  15. 15MS

    Modus is an open-source, serverless framework for building APIs powered by WebAssembly. It simplifies integrating AI models, data, and business logic with sandboxed execution. We built Modus to put code back at the heart of development. You write a function. export function sayHello(name: string): string { return `Hello, ${name}!`; } Then, Modus: - extracts the metadata of your functions - compiles your code with optimizations based on the host environment - caches the compiled module in memory for fast retrieval - prepares an invocation plan for each function - extracts connections, models,…

    2024 · github.com

  16. 16LO

    2017 · postmancollections.com

  17. 17

    World's first cloud sandbox Hermes Agent from MiniMax

    Apr 2026 · agent.minimax.io

  18. 18CA

    Hi HN! I've built [CXXStateTree](https://github.com/ZigRazor/CXXStateTree), a modern C++ header-only library to create hierarchical state machines with clean, intuitive APIs. It supports: - Deeply nested states - Entry/exit handlers - State transitions with guards and actions - Asynchronous transitions with `co_await` (C++20 coroutines) - Optional runtime type identification for flexibility It's ideal for complex control logic, embedded systems, games, robotics, and anywhere you'd use a finite state machine. I’d love feedback, use cases, or contributions from the…

    2025 · github.com

  19. 19ZD

    Hey HN! We just released a new library for building LLM-powered applications: @axflow/models. It is part of a larger suite of libraries we're developing for TypeScript developers working with generative AI. This library provides the simplest APIs for 1) invoking the most popular LLM and embedding models (openai, anthropic, cohere, huggingface, etc.) 2) streaming LLM responses to clients, including augmenting the streams with additional arbitrary data and 3) building client-side applications with React hooks. @axflow/models has zero dependencies and is built using only the…

    2023 · docs.axflow.dev

  20. 20

    A single compiled binary that renders one curated status line for fish, bash and zsh, and binds the up arrow to its own history picker. The slowest module runs as a task via std.Io while the rest run alongside it, so a render costs about what its slowest probe costs.

    Jul 2026 · yamafaktory.github.io

  21. 21AA

    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

  22. 22YF

    I shared a previous version of yapi a few months ago in the comments section of a post talking about the insanity of Postman being 'down'. yapi has developed into a more mature project since then! https://github.com/jamierpond/yapi Still very early, but it makes me much more productive vs Postman, Bruno, Insomnia, etc. If youre a nvim/tmux culture human, you might like this!

    Dec 2025 · yapi.run

  23. 23LP

    Hey everyone, I've been working on publishing Lama2, a Plain-Text Powered REST API Client for Teams, for the past few months. Initial work on Lama2 started after my dissatisfaction with existing tools such as Postman/Insomnia. I wanted a text-powered and git-friendly system with a lightweight GUI layer on top so that I could onboard beginners/newcomers quickly into my team while also maintaining control over data. Today, we use Lama2 extensively internal to Hexmos; almost every internal code review tends to have a `.l2` API file attached now. It has worked great for us. More about…

    2023 · hexmos.com

  24. 24PA

    2023 · github.com

Ranked by how close each launch is in meaning, then by votes. Refine with a description →