Fern generates REST API Reference documentation from an OpenAPI specification. Once the API definition is set up, adding it to the docs takes just one line of configuration.
Add your specification file to your /fern directory and create a generators.yml that references it in the api.specs section:
For a full list of configuration options and layout customizations, see Customize API Reference layout.
To include multiple, distinct API definitions in your documentation, use the api-name property. The api-name corresponds to the folder name containing your API definition. For example:
For a simple setup without tabs, you can include multiple API References directly in your navigation: