Remember Kiwami Dashboard that I made? here is a little project that is also made possible from it.
I play WarEra casually and figured I would try building a dashboard for it too. That is how I ended up finding the game's API. The problem is, the official docs only list the endpoint names. There is almost zero info on what the actual responses look like. It is like a menu that gives you the dish names but not what is in them.
So I spent a weekend fixing that. I called the endpoints manually, grabbed the JSON, and used Claude to help write up the spec files while I verified the results. I put it all together on a simple site using Docsify.
Right now it covers 23 endpoints, grouped by things like battles and user stats. I want to be totally upfront: this is not official. I do not work for WarEra. I am just reading my own network traffic. Some guesses about nullable fields might be wrong, and game updates could make my docs stale.
Still, if you want to build a tool for the game and do not want to start by staring at raw JSON, it is a decent starting point.
You can find the site at majimawrks.github.io/warera-api-docs. The source code is at github.com/majimawrks/warera-api-docs. If you spot a mistake or want to add endpoints I missed, PRs are open. Hope it helps.