ApiFlux – A Visual Playground to Build and Debug API Workflows

Hi HN I just launched ApiFlux, a visual tool to help backend developers build, connect, and test APIs like nodes in a flowchart – without writing glue code for every integration. Why I built it: As a backend developer, I often stitched together multiple APIs, transformations, and error handling manually. I wanted something like Postman, but more composable, visual, and better for multi-step workflows. So I built it. Github Link: https://github.com/complex1/webflow-app Live: https;//apiflux.in What it does: Add APIs and logic as nodes. Connect APIs using variables across steps. Add custom data transforms inline. Debug inputs/outputs visually with history. Test flows live with real API calls. Works locally in browser also. Under the hood: Built with Node.js, Nginx, and Vue Zero config setup (no login needed) Entirely open-source (MIT) — self-hostable I'm actively working on: Authentication flows Team workspaces CLI and deployment support Would love feedback from fellow developers and builders here. Especially interested in your thoughts on: What API debugging or chaining pain points you have Whether a tool like this fits into your workflow What you'd need before using it in production Thanks for reading — happy to answer anything here or on GitHub! https://github.com/complex1/webflow-app