Export from Fern Definition to OpenAPI

To prevent lock-in to the Fern Definition format, you can export your API definition to OpenAPI 3.1 at any time using the fern export command.

If you have multiple APIs defined in your fern/apis/ folder, use --api to specify which API to export.

$
fern export path/to/openapi.yml
$
fern export path/to/openapi.json
$

$
# Specify API to export
$
fern export --api public-api path/to/openapi.yml