# Add a group of parameters to all endpoints

If the same parameter applies to all the endpoints in your API, it can feel like clutter.
If there are a lot of them, then even more so.

Inspired by [https://github.com/OAI/Overlay-Specification/issues/34](https://github.com/OAI/Overlay-Specification/issues/34), here's an example of doing that.

## Overlay