API Explorer
Fern’s API Explorer allows users to make authenticated requests to your API without ever leaving your documentation.
Autopopulate with examples
Fern will automatically populate the fields of the endpoint with the values set in your API specification.
Authentication
The API Explorer supports all authentication schemes configured in your OpenAPI spec, including multiple authentication schemes. When multiple schemes are available, the API Explorer automatically displays them in a dropdown menu, allowing users to select and configure their preferred authentication method before sending requests.
Once a user sets their authentication credentials, their credentials persist throughout their entire exploration session.
Authentication credentials are only stored client-side using cookies. No sensitive user information is collected or stored.
Multiple environments
Allow users to test their calls in a sandbox environment or select the environment relevant to them. Users can switch between multiple environments. Once they’ve selected their environment, it persists throughout their entire exploration.
WebSocket Playground
For APIs that support WebSocket connections, the API Explorer includes a WebSocket-specific Playground. The WebSocket Playground also allows users to establish a connection with the API, and send/receive messages in real-time.