Alternatives
Products that do what Invariant does
Open-source business invariant engine for payment webhooks
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2021 · diahook.com
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2020 · openfaas.com
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Hi HN, I'm Martin from Codehooks / RestDB. Today I’m excited to share Codehooks Analytics, an open-source web analytics tool designed to help you track traffic and user interactions across your websites or applications—without relying on third-party services or cookies. After setup of the tracking script on your web site, it gives you full control over your raw data. What's included? - JS tracking script - for clicks and custom events - Front-end dashboard written using AlpineJS, TailwindCSS, DaisyUI - User authentication - so only you and your colleagues can use the dashboard - Backend…
2024
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2018 · github.com
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2015 · github.com
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Hello! I just made my first web app with Sinatra. It is a REST API that helps people add two-step verification to their websites or apps. I am a complete noob in web development so please criticize me and let me know how shitty this whole thing is. :) http://two-step.herokuapp.com/
2014
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2017 · github.com
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Hi HN, Sid here. I made Browserable, an open-source and self-hostable JS library (MIT license) for building agents that can execute web tasks, track status and fetch results: https://github.com/browserable/browserable. It allows you to build agents that can navigate sites, fill out forms, and extract information. It is currently at 90.4% on the Web Voyager benchmark. With this library, you can: - Run a browser agent suite in your local machine with one command- npx browserable. - Integrate into existing code with REST APIs/ SDKs. - Self-host the browser agent and…
2025 · github.com
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Oct 2025 · usepaykit.dev
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Hi everyone! My team and I just open-sourced a bunch of cool agent dev tools: Invariant Explorer to visually inspect and understand AI traces and a testing framework, building on pytest.
2024 · github.com
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Hey HN, I’am Koshima, co-founder of Flexprice (https://flexprice.io/). Flexprice is an open source monetization platform for AI & Agentic companies. You can build usage-based, credit-based, or hybrid pricing models with full control. Usage-based billing works on paper, but breaks fast in production: (1) High-volume data (e.g., 10k API calls/sec from AI inferences) breaks naive pipelines, dropping events and causing underbilling or customer complaints. (2) Backfilling missing events or retroactive discounts screws up invoices, forcing 3 AM log stitching to avoid revenue…
2025
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2021 · enzymeui.com
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Hi HF, I'm Terrell, and we built an open-source app that lets developers create their own Operator with a Next.js/React front-end and a flask back-end. The purpose is to simplify spinning up virtual desktops (Xfce, VNC) and automate desktop-based interactions using computer use models like OpenAI’s There are already various cool tools out there that allow you to build your own operator-like experience but they usually only automate web browser actions, or aren’t open sourced/cost a lot to get started. Spongecake allows you to automate desktop-based interactions, and is fully open…
2025 · github.com
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2020 · billhook.io
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Hi HN, I built CountermarkAI, a lightweight anti-scraping & bot-detection tool for content creators and website owners. It’s designed to help protect your work from unauthorized scraping and AI training, that repurposed your work without permission. How It Works: Use Hashtag – Creators add a unique hashtag to their content as a declaration of ownership. Protect Website – For those running your own sites, simply add a small snippet to your . The protect.js script works asynchronously by sending metadata from every page load back to our servers, logging requests, and flagging known AI-training…
2025 · countermarkai.com
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