Coolify API Playground — ShadowArcanist

Coolify API Playground is an open-source web app for testing and interacting with APIs.

Screenshots

How It Started

Coolify’s documentation provides API guides and tools, but I wasn’t satisfied with the UI and wanted a more convenient way to test APIs without manually writing curl commands.

Since I was already using Fumadocs, a Next.js-based docs framework with a built-in API playground, I created a new Fumadocs project for Coolify and set up a custom API playground. I made it open source so anyone could use or adapt it for their own workflow.

How It’s Going

I use the API playground to test Coolify APIs for internal testing of unreleased versions and to reproduce bug reports related to the API.

Since it’s open source, anyone can customize or extend it to suit their own workflow.

What’s Next

I’m actively maintaining the playground, keeping it updated with the latest Coolify versions and fixing bugs as they come up.

Last Updated on October 26, 2025